AGV / agv_shengyiPPxiaoche · Files

lib_str.c 196 KB
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573 2574 2575 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645 2646 2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 2667 2668 2669 2670 2671 2672 2673 2674 2675 2676 2677 2678 2679 2680 2681 2682 2683 2684 2685 2686 2687 2688 2689 2690 2691 2692 2693 2694 2695 2696 2697 2698 2699 2700 2701 2702 2703 2704 2705 2706 2707 2708 2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 2758 2759 2760 2761 2762 2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773 2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842 2843 2844 2845 2846 2847 2848 2849 2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944 2945 2946 2947 2948 2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962 2963 2964 2965 2966 2967 2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 2978 2979 2980 2981 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 2993 2994 2995 2996 2997 2998 2999 3000 3001 3002 3003 3004 3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023 3024 3025 3026 3027 3028 3029 3030 3031 3032 3033 3034 3035 3036 3037 3038 3039 3040 3041 3042 3043 3044 3045 3046 3047 3048 3049 3050 3051 3052 3053 3054 3055 3056 3057 3058 3059 3060 3061 3062 3063 3064 3065 3066 3067 3068 3069 3070 3071 3072 3073 3074 3075 3076 3077 3078 3079 3080 3081 3082 3083 3084 3085 3086 3087 3088 3089 3090 3091 3092 3093 3094 3095 3096 3097 3098 3099 3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 3115 3116 3117 3118 3119 3120 3121 3122 3123 3124 3125 3126 3127 3128 3129 3130 3131 3132 3133 3134 3135 3136 3137 3138 3139 3140 3141 3142 3143 3144 3145 3146 3147 3148 3149 3150 3151 3152 3153 3154 3155 3156 3157 3158 3159 3160 3161 3162 3163 3164 3165 3166 3167 3168 3169 3170 3171 3172 3173 3174 3175 3176 3177 3178 3179 3180 3181 3182 3183 3184 3185 3186 3187 3188 3189 3190 3191 3192 3193 3194 3195 3196 3197 3198 3199 3200 3201 3202 3203 3204 3205 3206 3207 3208 3209 3210 3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222 3223 3224 3225 3226 3227 3228 3229 3230 3231 3232 3233 3234 3235 3236 3237 3238 3239 3240 3241 3242 3243 3244 3245 3246 3247 3248 3249 3250 3251 3252 3253 3254 3255 3256 3257 3258 3259 3260 3261 3262 3263 3264 3265 3266 3267 3268 3269 3270 3271 3272 3273 3274 3275 3276 3277 3278 3279 3280 3281 3282 3283 3284 3285 3286 3287 3288 3289 3290 3291 3292 3293 3294 3295 3296 3297 3298 3299 3300 3301 3302 3303 3304 3305 3306 3307 3308 3309 3310 3311 3312 3313 3314 3315 3316 3317 3318 3319 3320 3321 3322 3323 3324 3325 3326 3327 3328 3329 3330 3331 3332 3333 3334 3335 3336 3337 3338 3339 3340 3341 3342 3343 3344 3345 3346 3347 3348 3349 3350 3351 3352 3353 3354 3355 3356 3357 3358 3359 3360 3361 3362 3363 3364 3365 3366 3367 3368 3369 3370 3371 3372 3373 3374 3375 3376 3377 3378 3379 3380 3381 3382 3383 3384 3385 3386 3387 3388 3389 3390 3391 3392 3393 3394 3395 3396 3397 3398 3399 3400 3401 3402 3403 3404 3405 3406 3407 3408 3409 3410 3411 3412 3413 3414 3415 3416 3417 3418 3419 3420 3421 3422 3423 3424 3425 3426 3427 3428 3429 3430 3431 3432 3433 3434 3435 3436 3437 3438 3439 3440 3441 3442 3443 3444 3445 3446 3447 3448 3449 3450 3451 3452 3453 3454 3455 3456 3457 3458 3459 3460 3461 3462 3463 3464 3465 3466 3467 3468 3469 3470 3471 3472 3473 3474 3475 3476 3477 3478 3479 3480 3481 3482 3483 3484 3485 3486 3487 3488 3489 3490 3491 3492 3493 3494 3495 3496 3497 3498 3499 3500 3501 3502 3503 3504 3505 3506 3507 3508 3509 3510 3511 3512 3513 3514 3515 3516 3517 3518 3519 3520 3521 3522 3523 3524 3525 3526 3527 3528 3529 3530 3531 3532 3533 3534 3535 3536 3537 3538 3539 3540 3541 3542 3543 3544 3545 3546 3547 3548 3549 3550 3551 3552 3553 3554 3555 3556 3557 3558 3559 3560 3561 3562 3563 3564 3565 3566 3567 3568 3569 3570 3571 3572 3573 3574 3575 3576 3577 3578 3579 3580 3581 3582 3583 3584 3585 3586 3587 3588 3589 3590 3591 3592 3593 3594 3595 3596 3597 3598 3599 3600 3601 3602 3603 3604 3605 3606 3607 3608 3609 3610 3611 3612 3613 3614 3615 3616 3617 3618 3619 3620 3621 3622 3623 3624 3625 3626 3627 3628 3629 3630 3631 3632 3633 3634 3635 3636 3637 3638 3639 3640 3641 3642 3643 3644 3645 3646 3647 3648 3649 3650 3651 3652 3653 3654 3655 3656 3657 3658 3659 3660 3661 3662 3663 3664 3665 3666 3667 3668 3669 3670 3671 3672 3673 3674 3675 3676 3677 3678 3679 3680 3681 3682 3683 3684 3685 3686 3687 3688 3689 3690 3691 3692 3693 3694 3695 3696 3697 3698 3699 3700 3701 3702 3703 3704 3705 3706 3707 3708 3709 3710 3711 3712 3713 3714 3715 3716 3717 3718 3719 3720 3721 3722 3723 3724 3725 3726 3727 3728 3729 3730 3731 3732 3733 3734 3735 3736 3737 3738 3739 3740 3741 3742 3743 3744 3745 3746 3747 3748 3749 3750 3751 3752 3753 3754 3755 3756 3757 3758 3759 3760 3761 3762 3763 3764 3765 3766 3767 3768 3769 3770 3771 3772 3773 3774 3775 3776 3777 3778 3779 3780 3781 3782 3783 3784 3785 3786 3787 3788 3789 3790 3791 3792 3793 3794 3795 3796 3797 3798 3799 3800 3801 3802 3803 3804 3805 3806 3807 3808 3809 3810 3811 3812 3813 3814 3815 3816 3817 3818 3819 3820 3821 3822 3823 3824 3825 3826 3827 3828 3829 3830 3831 3832 3833 3834 3835 3836 3837 3838 3839 3840 3841 3842 3843 3844 3845 3846 3847 3848 3849 3850 3851 3852 3853 3854 3855 3856 3857 3858 3859 3860 3861 3862 3863 3864 3865 3866 3867 3868 3869 3870 3871 3872 3873 3874 3875 3876 3877 3878 3879 3880 3881 3882 3883 3884 3885 3886 3887 3888 3889 3890 3891 3892 3893 3894 3895 3896 3897 3898 3899 3900 3901 3902 3903 3904 3905 3906 3907 3908 3909 3910 3911 3912 3913 3914 3915 3916 3917 3918 3919 3920 3921 3922 3923 3924 3925 3926 3927 3928 3929 3930 3931 3932 3933 3934 3935 3936 3937 3938 3939 3940 3941 3942 3943 3944 3945 3946 3947 3948 3949 3950 3951 3952 3953 3954 3955 3956 3957 3958 3959 3960 3961 3962 3963 3964 3965 3966 3967 3968 3969 3970 3971 3972 3973 3974 3975 3976 3977 3978 3979 3980 3981 3982 3983 3984 3985 3986 3987 3988 3989 3990 3991 3992 3993 3994 3995 3996 3997 3998 3999 4000 4001 4002 4003 4004 4005 4006 4007 4008 4009 4010 4011 4012 4013 4014 4015 4016 4017 4018 4019 4020 4021 4022 4023 4024 4025 4026 4027 4028 4029 4030 4031 4032 4033 4034 4035 4036 4037 4038 4039 4040 4041 4042 4043 4044 4045 4046 4047 4048 4049 4050 4051 4052 4053 4054 4055 4056 4057 4058 4059 4060 4061 4062 4063 4064 4065 4066 4067 4068 4069 4070 
/*
*********************************************************************************************************
*                                                uC/LIB
*                                        CUSTOM LIBRARY MODULES
*
*                          (c) Copyright 2004-2012; Micrium, Inc.; Weston, FL
*
*               All rights reserved.  Protected by international copyright laws.
*
*               uC/LIB is provided in source form to registered licensees ONLY.  It is 
*               illegal to distribute this source code to any third party unless you receive 
*               written permission by an authorized Micrium representative.  Knowledge of 
*               the source code may NOT be used to develop a similar product.
*
*               Please help us continue to provide the Embedded community with the finest 
*               software available.  Your honesty is greatly appreciated.
*
*               You can contact us at www.micrium.com.
*********************************************************************************************************
*/

/*
*********************************************************************************************************
*
*                                       ASCII STRING MANAGEMENT
*
* Filename      : lib_str.c
* Version       : V1.37.01
* Programmer(s) : ITJ
*                 BAN
*                 JDH
*********************************************************************************************************
* Note(s)       : (1) NO compiler-supplied standard library functions are used in library or product software.
*
*                     (a) ALL standard library functions are implemented in the custom library modules :
*
*                         (1) \<Custom Library Directory>\lib_*.*
*
*                         (2) \<Custom Library Directory>\Ports\<cpu>\<compiler>\lib*_a.*
*
*                               where
*                                       <Custom Library Directory>      directory path for custom library software
*                                       <cpu>                           directory name for specific processor (CPU)
*                                       <compiler>                      directory name for specific compiler
*
*                     (b) Product-specific library functions are implemented in individual products.
*
*********************************************************************************************************
* Notice(s)     : (1) The Institute of Electrical and Electronics Engineers and The Open Group, have given
*                     us permission to reprint portions of their documentation.  Portions of this text are
*                     reprinted and reproduced in electronic form from the IEEE Std 1003.1, 2004 Edition,
*                     Standard for Information Technology -- Portable Operating System Interface (POSIX),
*                     The Open Group Base Specifications Issue 6, Copyright (C) 2001-2004 by the Institute
*                     of Electrical and Electronics Engineers, Inc and The Open Group.  In the event of any
*                     discrepancy between these versions and the original IEEE and The Open Group Standard,
*                     the original IEEE and The Open Group Standard is the referee document.  The original
*                     Standard can be obtained online at http://www.opengroup.org/unix/online.html.
*********************************************************************************************************
*/


/*
*********************************************************************************************************
*                                            INCLUDE FILES
*********************************************************************************************************
*/

#define    MICRIUM_SOURCE
#define    LIB_STR_MODULE
#include  <lib_str.h>


/*$PAGE*/
/*
*********************************************************************************************************
*                                            LOCAL DEFINES
*********************************************************************************************************
*/


/*
*********************************************************************************************************
*                                           LOCAL CONSTANTS
*********************************************************************************************************
*/


/*
*********************************************************************************************************
*                                          LOCAL DATA TYPES
*********************************************************************************************************
*/


/*
*********************************************************************************************************
*                                            LOCAL TABLES
*********************************************************************************************************
*/

static  const  CPU_INT32U  Str_MultOvfThTbl_Int32U[] = {
   (CPU_INT32U) DEF_INT_32U_MAX_VAL,                /*                Invalid base  0.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL /  1u),         /*                Invalid base  1.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL /  2u),         /* 32-bit mult ovf th for base  2.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL /  3u),         /* 32-bit mult ovf th for base  3.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL /  4u),         /* 32-bit mult ovf th for base  4.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL /  5u),         /* 32-bit mult ovf th for base  5.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL /  6u),         /* 32-bit mult ovf th for base  6.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL /  7u),         /* 32-bit mult ovf th for base  7.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL /  8u),         /* 32-bit mult ovf th for base  8.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL /  9u),         /* 32-bit mult ovf th for base  9.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 10u),         /* 32-bit mult ovf th for base 10.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 11u),         /* 32-bit mult ovf th for base 11.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 12u),         /* 32-bit mult ovf th for base 12.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 13u),         /* 32-bit mult ovf th for base 13.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 14u),         /* 32-bit mult ovf th for base 14.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 15u),         /* 32-bit mult ovf th for base 15.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 16u),         /* 32-bit mult ovf th for base 16.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 17u),         /* 32-bit mult ovf th for base 17.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 18u),         /* 32-bit mult ovf th for base 18.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 19u),         /* 32-bit mult ovf th for base 19.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 20u),         /* 32-bit mult ovf th for base 20.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 21u),         /* 32-bit mult ovf th for base 21.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 22u),         /* 32-bit mult ovf th for base 22.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 23u),         /* 32-bit mult ovf th for base 23.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 24u),         /* 32-bit mult ovf th for base 24.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 25u),         /* 32-bit mult ovf th for base 25.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 26u),         /* 32-bit mult ovf th for base 26.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 27u),         /* 32-bit mult ovf th for base 27.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 28u),         /* 32-bit mult ovf th for base 28.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 29u),         /* 32-bit mult ovf th for base 29.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 30u),         /* 32-bit mult ovf th for base 30.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 31u),         /* 32-bit mult ovf th for base 31.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 32u),         /* 32-bit mult ovf th for base 32.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 33u),         /* 32-bit mult ovf th for base 33.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 34u),         /* 32-bit mult ovf th for base 34.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 35u),         /* 32-bit mult ovf th for base 35.  */
   (CPU_INT32U)(DEF_INT_32U_MAX_VAL / 36u)          /* 32-bit mult ovf th for base 36.  */
};


/*
*********************************************************************************************************
*                                       LOCAL GLOBAL VARIABLES
*********************************************************************************************************
*/


/*$PAGE*/
/*
*********************************************************************************************************
*                                      LOCAL FUNCTION PROTOTYPES
*********************************************************************************************************
*/

static  CPU_CHAR    *Str_FmtNbr_Int32  (       CPU_INT32U     nbr,
                                               CPU_INT08U     nbr_dig,
                                               CPU_INT08U     nbr_base,
                                               CPU_BOOLEAN    nbr_neg,
                                               CPU_CHAR       lead_char,
                                               CPU_BOOLEAN    lower_case,
                                               CPU_BOOLEAN    nul,
                                               CPU_CHAR      *pstr);

static  CPU_INT32U   Str_ParseNbr_Int32(const  CPU_CHAR      *pstr,
                                               CPU_CHAR     **pstr_next,
                                               CPU_INT08U     nbr_base,
                                               CPU_BOOLEAN    nbr_signed,
                                               CPU_BOOLEAN   *pnbr_neg);


/*
*********************************************************************************************************
*                                     LOCAL CONFIGURATION ERRORS
*********************************************************************************************************
*/


/*$PAGE*/
/*
*********************************************************************************************************
*                                              Str_Len()
*
* Description : Calculate length of a string.
*
* Argument(s) : pstr        Pointer to string (see Note #1).
*
* Return(s)   : Length of string; number of characters in string before terminating NULL character 
*                   (see Note #2b1).
*
* Caller(s)   : Application.
*
* Note(s)     : (1) String buffer NOT modified.
*
*               (2) (a) IEEE Std 1003.1, 2004 Edition, Section 'strlen() : DESCRIPTION' states that :
*
*                       (1) "The strlen() function shall compute the number of bytes in the string to 
*                            which 's' ('pstr') points," ...
*                       (2) "not including the terminating null byte."
*
*                   (b) IEEE Std 1003.1, 2004 Edition, Section 'strlen() : RETURN VALUE' states that :
*
*                       (1) "The strlen() function shall return the length of 's' ('pstr');" ...
*                       (2) "no return value shall be reserved to indicate an error."
*
*               (3) String length calculation terminates when :
*
*                   (a) String pointer points to NULL.
*                       (1) String buffer overlaps with NULL address.
*                       (2) String length calculated for string up to but NOT beyond or including
*                           the NULL address.
*
*                   (b) Terminating NULL character found.
*                       (1) String length calculated for string up to but NOT           including
*                           the NULL character (see Note #2a2).
*********************************************************************************************************
*/

CPU_SIZE_T  Str_Len (const  CPU_CHAR  *pstr)
{
    CPU_SIZE_T  len;


    len = Str_Len_N(pstr,
                    DEF_INT_CPU_U_MAX_VAL);

    return (len);
}


/*$PAGE*/
/*
*********************************************************************************************************
*                                             Str_Len_N()
*
* Description : Calculate length of a string, up to a maximum number of characters.
*
* Argument(s) : pstr        Pointer to string (see Note #1).
*
*               len_max     Maximum number of characters to search (see Note #3c).
*
* Return(s)   : Length of string; number of characters in string before terminating NULL character, 
*                   if terminating NULL character     found (see Note #2b1).
*
*               Requested maximum number of characters to search, 
*                   if terminating NULL character NOT found (see Note #3c).
*
* Caller(s)   : Application.
*
* Note(s)     : (1) String buffer NOT modified.
*
*               (2) (a) IEEE Std 1003.1, 2004 Edition, Section 'strlen() : DESCRIPTION' states that :
*
*                       (1) "The strlen() function shall compute the number of bytes in the string to 
*                            which 's' ('pstr') points," ...
*                       (2) "not including the terminating null byte."
*
*                   (b) IEEE Std 1003.1, 2004 Edition, Section 'strlen() : RETURN VALUE' states that :
*
*                       (1) "The strlen() function shall return the length of 's' ('pstr');" ...
*                       (2) "no return value shall be reserved to indicate an error."
*
*               (3) String length calculation terminates when :
*
*                   (a) String pointer points to NULL.
*                       (1) String buffer overlaps with NULL address.
*                       (2) String length calculated for string up to but NOT beyond or including
*                           the NULL address.
*
*                   (b) Terminating NULL character found.
*                       (1) String length calculated for string up to but NOT           including
*                           the NULL character (see Note #2a2).
*
*                   (c) 'len_max' number of characters searched.
*                       (1) 'len_max' number of characters does NOT include the terminating NULL character.
*********************************************************************************************************
*/

CPU_SIZE_T  Str_Len_N (const  CPU_CHAR    *pstr,
                              CPU_SIZE_T   len_max)
{
    const  CPU_CHAR    *pstr_len;
           CPU_SIZE_T   len;


    pstr_len = pstr;
    len      = 0u;
    while (( pstr_len != (const CPU_CHAR *)  0 ) &&             /* Calc str len until NULL ptr (see Note #3a) ...       */
           (*pstr_len != (      CPU_CHAR  )'\0') &&             /* ... or NULL char found      (see Note #3b) ...       */
           ( len      <  (      CPU_SIZE_T)len_max)) {          /* ... or max nbr chars srch'd (see Note #3c).          */
        pstr_len++;
        len++;
    }

    return (len);                                               /* Rtn str len (see Note #3b1).                         */
}


/*$PAGE*/
/*
*********************************************************************************************************
*                                             Str_Copy()
*
* Description : Copy source string to destination string buffer.
*
* Argument(s) : pstr_dest   Pointer to destination string buffer to receive source string copy   (see Note #1a).
*
*               pstr_src    Pointer to source      string to copy into destination string buffer (see Note #1b).
*
* Return(s)   : Pointer to destination string, if NO error(s) [see Note #2b1].
*
*               Pointer to NULL,               otherwise      (see Note #2b2A).
*
* Caller(s)   : Application.
*
* Note(s)     : (1) (a) Destination buffer size NOT validated; buffer overruns MUST be prevented by caller.
*
*                       (1) Destination buffer size MUST be large enough to accommodate the entire source
*                           string size including the terminating NULL character.
*
*                   (b) Source buffer NOT modified.
*
*               (2) (a) IEEE Std 1003.1, 2004 Edition, Section 'strcpy() : DESCRIPTION' states that :
*
*                       (1) "The strcpy() function shall copy the string pointed to by 's2' ('pstr_src') 
*                            ... into the array pointed to by 's1' ('pstr_dest')" ...
*                       (2) "(including the terminating null byte)."
*
*                   (b) IEEE Std 1003.1, 2004 Edition, Section 'strcpy() : RETURN VALUE' states that :
*
*                       (1) "The strcpy() function shall return 's1' ('pstr_dest');" ...
*                       (2) "no return value is reserved to indicate an error."
*                           (A) #### This requirement is intentionally NOT implemented in order to return 
*                               NULL for any error(s).
*
*                   (c) IEEE Std 1003.1, 2004 Edition, Section 'strcpy() : DESCRIPTION' states that "if
*                       copying takes place between objects that overlap, the behavior is undefined".
*
*               (3) String copy terminates when :
*
*                   (a) Destination/Source string pointer(s) are passed NULL pointers.
*                       (1) No string copy performed; NULL pointer returned.
*
*                   (b) Destination/Source string pointer(s) point to NULL.
*                       (1) String buffer(s) overlap with NULL address; NULL pointer returned.
*
*                   (c) Source string's terminating NULL character found.
*                       (1) Entire source string copied into destination string buffer (see Note #2a).
*********************************************************************************************************
*/

CPU_CHAR  *Str_Copy (       CPU_CHAR  *pstr_dest,
                     const  CPU_CHAR  *pstr_src)
{
    CPU_CHAR  *pstr_rtn;


    pstr_rtn = Str_Copy_N(pstr_dest,
                          pstr_src,
                          DEF_INT_CPU_U_MAX_VAL);

    return (pstr_rtn);
}


/*$PAGE*/
/*
*********************************************************************************************************
*                                            Str_Copy_N()
*
* Description : Copy source string to destination string buffer, up to a maximum number of characters.
*
* Argument(s) : pstr_dest   Pointer to destination string buffer to receive source string copy   (see Note #1a).
*
*               pstr_src    Pointer to source      string to copy into destination string buffer (see Note #1b).
*
*               len_max     Maximum number of characters  to copy (see Notes #2a2 & #3d).
*
* Return(s)   : Pointer to destination string, if NO error(s) [see Note #2b1].
*
*               Pointer to NULL,               otherwise      (see Note #2b2A).
*
* Caller(s)   : Application.
*
* Note(s)     : (1) (a) Destination buffer size NOT validated; buffer overruns MUST be prevented by caller.
*
*                       (1) Destination buffer size MUST be large enough to accommodate the entire source
*                           string size including the terminating NULL character.
*
*                   (b) Source string buffer NOT modified.
*
*               (2) (a) (1) IEEE Std 1003.1, 2004 Edition, Section 'strncpy() : DESCRIPTION' states that :
*
*                           (A) "The strncpy() function shall copy ... the array pointed to by 's2' 
*                               ('pstr_src') to the array pointed to by 's1' ('pstr_dest')"; ...
*                           (B)  but "not more than 'n' ('len_max') bytes"                   ...
*                           (C)  &   "(bytes that follow a null byte are not copied)".
*
*                       (2) (A) IEEE Std 1003.1, 2004 Edition, Section 'strncpy() : DESCRIPTION' adds that 
*                              "if the array pointed to by 's2' ('pstr_src') is a string that is shorter 
*                               than 'n' ('len_max') bytes, null bytes shall be appended to the copy in 
*                               the array pointed to by 's1' ('pstr_dest'), until 'n' ('len_max') bytes 
*                               in all are written."
*
*                               (1) #### Since Str_Copy() limits the maximum number of characters to copy 
*                                   via Str_Copy_N() by the CPU's maximum number of addressable characters, 
*                                   this requirement is intentionally NOT implemented to avoid appending 
*                                   a potentially large number of unnecessary terminating NULL characters.
*
*                           (B) IEEE Std 1003.1, 2004 Edition, Section 'strncpy() : APPLICATION USAGE' also  
*                               states that "if there is no null byte in the first 'n' ('len_max') bytes of 
*                               the array pointed to by 's2' ('pstr_src'), the result is not null-terminated".
*
*                   (b) IEEE Std 1003.1, 2004 Edition, Section 'strncpy() : RETURN VALUE' states that :
*
*                       (1) "The strncpy() function shall return 's1' ('pstr_dest');" ...
*                       (2) "no return value is reserved to indicate an error."
*                           (A) #### This requirement is intentionally ignored in order to return NULL 
*                               for any error(s).
*
*                   (c) IEEE Std 1003.1, 2004 Edition, Section 'strncpy() : DESCRIPTION' states that "if
*                       copying takes place between objects that overlap, the behavior is undefined".
*
*               (3) String copy terminates when :
*
*                   (a) Destination/Source string pointer(s) are passed NULL pointers.
*                       (1) No string copy performed; NULL pointer returned.
*
*                   (b) Destination/Source string pointer(s) point to NULL.
*                       (1) String buffer(s) overlap with NULL address; NULL pointer returned.
*
*                   (c) Source string's terminating NULL character found.
*                       (1) Entire source string copied into destination string buffer (see Note #2a1A).
*
*                   (d) 'len_max' number of characters copied.
*                       (1) 'len_max' number of characters MAY include the terminating NULL character 
*                           (see Note #2a1C).
*                       (2) Null copies allowed (i.e. zero-length copies).
*                           (A) No string copy performed; destination string returned  (see Note #2b1).
*********************************************************************************************************
*/
/*$PAGE*/
CPU_CHAR  *Str_Copy_N (       CPU_CHAR    *pstr_dest,
                       const  CPU_CHAR    *pstr_src,
                              CPU_SIZE_T   len_max)
{
           CPU_CHAR    *pstr_copy_dest;
    const  CPU_CHAR    *pstr_copy_src;
           CPU_SIZE_T   len_copy;

                                                                /* Rtn NULL if str ptr(s) NULL (see Note #3a1).         */
    if (pstr_dest == (CPU_CHAR *)0) {
        return ((CPU_CHAR *)0);
    }
    if (pstr_src  == (const CPU_CHAR *)0) {
        return ((CPU_CHAR *)0);
    }


    pstr_copy_dest = pstr_dest;
    pstr_copy_src  = pstr_src;
    len_copy       = 0u;

    while (( pstr_copy_dest != (      CPU_CHAR *)  0 ) &&       /* Copy str until NULL ptr(s)  [see Note #3b]  ...      */
           ( pstr_copy_src  != (const CPU_CHAR *)  0 ) &&
           (*pstr_copy_src  != (      CPU_CHAR  )'\0') &&       /* ... or NULL char found      (see Note #3c); ...      */
           ( len_copy       <  (      CPU_SIZE_T)len_max)) {    /* ... or max nbr chars copied (see Note #3d).          */
       *pstr_copy_dest = *pstr_copy_src;
        pstr_copy_dest++;
        pstr_copy_src++;
        len_copy++;
    }
                                                                /* Rtn NULL if NULL ptr(s) found  (see Note #3b1).      */
    if ((pstr_copy_dest == (      CPU_CHAR *)0) ||
        (pstr_copy_src  == (const CPU_CHAR *)0)) {
         return ((CPU_CHAR *)0);
    }

    if (len_copy < len_max) {                                   /* If  copy str len < max buf len (see Note #2a2A), ... */
       *pstr_copy_dest = (CPU_CHAR)'\0';                        /* ... copy NULL char  (see Note #3c1).                 */
    }


    return (pstr_dest);                                         /* Rtn ptr to dest str (see Note #2b1).                 */
}


/*$PAGE*/
/*
*********************************************************************************************************
*                                              Str_Cat()
*
* Description : Append concatenation string to destination string.
*
* Argument(s) : pstr_dest   Pointer to destination   string to append concatenation  string (see Note #1a).
*
*               pstr_cat    Pointer to concatenation string to append to destination string (see Note #1b).
*
* Return(s)   : Pointer to destination string, if NO error(s) [see Note #2b1].
*
*               Pointer to NULL,               otherwise      (see Note #2b2A).
*
* Caller(s)   : Application.
*
* Note(s)     : (1) (a) Destination buffer size NOT validated; buffer overruns MUST be prevented by caller.
*
*                       (1) Destination buffer size MUST be large enough to accommodate the entire 
*                           concatenated string size including the terminating NULL character.
*
*                   (b) Concatenation string buffer NOT modified.
*
*               (2) (a) IEEE Std 1003.1, 2004 Edition, Section 'strcat() : DESCRIPTION' states that :
*
*                       (1) "The strcat() function shall append a copy of the string pointed to by 's2' 
*                           ('pstr_cat') ... to the end of the string pointed to by 's1' ('pstr_dest')."
*
*                       (2) (A) "The initial byte of 's2' ('pstr_cat') overwrites the null byte at the 
*                                end of 's1' ('pstr_dest')."
*                           (B)  A "terminating null byte" is appended at the end of the concatenated 
*                                destination strings.
*
*                   (b) IEEE Std 1003.1, 2004 Edition, Section 'strcat() : RETURN VALUE' states that :
*
*                       (1) "The strcat() function shall return 's1' ('pstr_dest');" ...
*                       (2) "no return value shall be reserved to indicate an error."
*                           (A) #### This requirement is intentionally NOT implemented in order to return 
*                               NULL for any error(s).
*
*                   (c) IEEE Std 1003.1, 2004 Edition, Section 'strcat() : DESCRIPTION' states that "if
*                       copying takes place between objects that overlap, the behavior is undefined."
*
*               (3) String concatenation terminates when :
*
*                   (a) Destination/Concatenation string pointer(s) are passed NULL pointers.
*                       (1) No string concatenation performed; NULL pointer returned.
*
*                   (b) Destination/Concatenation string pointer(s) point to NULL.
*                       (1) String buffer(s) overlap with NULL address; NULL pointer returned.
*
*                   (c) Concatenation string's terminating NULL character found.
*                       (1) Entire concatenation string appended to destination string (see Note #2a1).
*********************************************************************************************************
*/

CPU_CHAR  *Str_Cat (       CPU_CHAR  *pstr_dest,
                    const  CPU_CHAR  *pstr_cat)
{
    CPU_CHAR  *pstr_rtn;


    pstr_rtn = Str_Cat_N(pstr_dest,
                         pstr_cat,
                         DEF_INT_CPU_U_MAX_VAL);

    return (pstr_rtn);
}


/*$PAGE*/
/*
*********************************************************************************************************
*                                             Str_Cat_N()
*
* Description : Append concatenation string to destination string, up to a maximum number of characters.
*
* Argument(s) : pstr_dest   Pointer to destination   string to append concatenation  string (see Note #1a).
*
*               pstr_cat    Pointer to concatenation string to append to destination string (see Note #1b).
*
*               len_max     Maximum number of characters to concatenate (see Notes #2a1B & #3d).
*
* Return(s)   : Pointer to destination string, if NO error(s) [see Note #2b1].
*
*               Pointer to NULL,               otherwise      (see Note #2b2A).
*
* Caller(s)   : Application.
*
* Note(s)     : (1) (a) Destination buffer size NOT validated; buffer overruns MUST be prevented by caller.
*
*                       (1) Destination buffer size MUST be large enough to accommodate the entire 
*                           concatenated string size including the terminating NULL character.
*
*                   (b) Concatenation string buffer NOT modified.
*
*               (2) (a) IEEE Std 1003.1, 2004 Edition, Section 'strncat() : DESCRIPTION' states that :
*
*                       (1) (A) "The strncat() function shall append ... the array pointed to by 's2' 
*                               ('pstr_cat') to the end of the string pointed to by 's1' ('pstr_dest')" ...
*                           (B)  but "not more than 'n' ('len_max') bytes".
*
*                       (2) (A) "The initial byte of 's2' ('pstr_cat') overwrites the null byte at the 
*                                end of 's1' ('pstr_dest')."
*                           (B) "(a null byte and bytes that follow it are not appended)."
*                           (C) "A terminating null byte is always appended to the result."
*
*                   (b) IEEE Std 1003.1, 2004 Edition, Section 'strncat() : RETURN VALUE' states that :
*
*                       (1) "The strncat() function shall return 's1' ('pstr_dest');" ...
*                       (2) "no return value shall be reserved to indicate an error."
*                           (A) #### This requirement is intentionally NOT implemented in order to return 
*                               NULL for any error(s).
*
*                   (c) IEEE Std 1003.1, 2004 Edition, Section 'strncat() : DESCRIPTION' states that "if
*                       copying takes place between objects that overlap, the behavior is undefined."
*
*               (3) String concatenation terminates when :
*
*                   (a) Destination/Concatenation string pointer(s) are passed NULL pointers.
*                       (1) No string concatenation performed; NULL pointer returned.
*
*                   (b) Destination/Concatenation string pointer(s) point to NULL.
*                       (1) String buffer(s) overlap with NULL address; NULL pointer returned.
*
*                   (c) Concatenation string's terminating NULL character found.
*                       (1) Entire concatenation string appended to destination string (see Note #2a1A).
*
*                   (d) 'len_max' number of characters concatenated.
*
*                       (1) 'len_max' number of characters does NOT include the terminating NULL character 
*                           (see Note #2a2).
*
*                       (2) Null concatenations allowed (i.e. zero-length concatenations).
*                           (A) No string concatenation performed; destination string returned 
*                               (see Note #2b1).
*********************************************************************************************************
*/
/*$PAGE*/
CPU_CHAR  *Str_Cat_N (       CPU_CHAR    *pstr_dest,
                      const  CPU_CHAR    *pstr_cat,
                             CPU_SIZE_T   len_max)
{
           CPU_CHAR    *pstr_cat_dest;
    const  CPU_CHAR    *pstr_cat_src;
           CPU_SIZE_T   len_cat;

                                                                /* Rtn NULL if str ptr(s) NULL (see Note #3a1).         */
    if (pstr_dest == (CPU_CHAR *)0) {
        return ((CPU_CHAR *)0);
    }
    if (pstr_cat  == (const CPU_CHAR *)0) {
        return ((CPU_CHAR *)0);
    }

    if (len_max < 1) {                                          /* Rtn dest str if cat len = 0 (see Note #3d2A).        */
        return ((CPU_CHAR *)pstr_dest);
    }


    pstr_cat_dest = pstr_dest;
    while (( pstr_cat_dest != (CPU_CHAR *)  0 ) &&              /* Adv to end of cur dest str until NULL ptr ...        */
           (*pstr_cat_dest != (CPU_CHAR  )'\0')) {              /* ... or NULL char found..                             */
        pstr_cat_dest++;
    }
    if (pstr_cat_dest == (CPU_CHAR *)0) {                       /* Rtn NULL if NULL ptr found (see Note #3b1).          */
        return ((CPU_CHAR *)0);
    }

    pstr_cat_src = pstr_cat;
    len_cat      = 0u;

    while (( pstr_cat_dest != (      CPU_CHAR *)  0 ) &&        /* Cat str until NULL ptr(s)  [see Note #3b]  ...       */
           ( pstr_cat_src  != (const CPU_CHAR *)  0 ) &&
           (*pstr_cat_src  != (      CPU_CHAR  )'\0') &&        /* ... or NULL char found     (see Note #3c); ...       */
           ( len_cat       <  (      CPU_SIZE_T)len_max)) {     /* ... or max nbr chars cat'd (see Note #3d).           */
       *pstr_cat_dest = *pstr_cat_src;
        pstr_cat_dest++;
        pstr_cat_src++;
        len_cat++;
    }
                                                                /* Rtn NULL if NULL ptr(s) found (see Note #3b1).       */
    if ((pstr_cat_dest == (      CPU_CHAR *)0) ||
        (pstr_cat_src  == (const CPU_CHAR *)0)) {
         return ((CPU_CHAR *)0);
    }

   *pstr_cat_dest = (CPU_CHAR)'\0';                             /* Append NULL char    (see Note #2a2C).                */


    return (pstr_dest);                                         /* Rtn ptr to dest str (see Note #2b1).                 */
}


/*$PAGE*/
/*
*********************************************************************************************************
*                                              Str_Cmp()
*
* Description : Determine if two strings are identical.
*
* Argument(s) : p1_str      Pointer to first  string (see Note #1).
*
*               p2_str      Pointer to second string (see Note #1).
*
* Return(s)   : 0,              if strings are identical             (see Notes #3a1A, #3a2A, & #3b).
*
*               Negative value, if 'p1_str' is less    than 'p2_str' (see Notes #3a1B1, #3a2B1, & #3c).
*
*               Positive value, if 'p1_str' is greater than 'p2_str' (see Notes #3a1B2, #3a2B2, & #3c).
*
*               See also Note #2b.
*
* Caller(s)   : Application.
*
* Note(s)     : (1) String buffers NOT modified.
*
*               (2) (a) IEEE Std 1003.1, 2004 Edition, Section 'strcmp() : DESCRIPTION' states that "the
*                       strcmp() function shall compare the string pointed to by 's1' ('p1_str') to the 
*                       string pointed to by 's2' ('p2_str)".
*
*                   (b) (1) IEEE Std 1003.1, 2004 Edition, Section 'strcmp() : RETURN VALUE' states that
*                          "upon successful completion, strcmp() shall return an integer greater than,
*                           equal to, or less than 0".
*
*                       (2) IEEE Std 1003.1, 2004 Edition, Section 'strcmp() : DESCRIPTION' adds that "the
*                           sign of a non-zero return value shall be determined by the sign of the difference
*                           between the values of the first pair of bytes ... that differ in the strings
*                           being compared".
*
*               (3) String comparison terminates when :
*
*                   (a) (1) (A) BOTH string pointer(s) are passed NULL pointers.
*                               (1) NULL strings identical; 0 returned.
*
*                           (B) (1) 'p1_str' passed a NULL pointer.
*                                   (a) Return negative value of character pointed to by 'p2_str'.
*
*                               (2) 'p2_str' passed a NULL pointer.
*                                   (a) Return positive value of character pointed to by 'p1_str'.
*
*                       (2) (A) BOTH strings point to NULL.
*                               (1) Strings overlap with NULL address.
*                               (2) Strings identical up to but NOT beyond or including the NULL address;
*                                   0 returned.
*
*                           (B) (1) 'p1_str_cmp_next' points to NULL.
*                                   (a) 'p1_str' overlaps with NULL address.
*                                   (b) Strings compared up to but NOT beyond or including the NULL address.
*                                   (c) Return negative value of character pointed to by 'p2_str_cmp_next'.
*
*                               (2) 'p2_str_cmp_next' points to NULL.
*                                   (a) 'p2_str' overlaps with NULL address.
*                                   (b) Strings compared up to but NOT beyond or including the NULL address.
*                                   (c) Return positive value of character pointed to by 'p1_str_cmp_next'.
*
*                   (b) Terminating NULL character found in both strings.
*                       (1) Strings identical; 0 returned.
*                       (2) Only one NULL character test required in conditional since previous condition
*                           tested character equality.
*
*                   (c) Non-matching characters found.
*                       (1) Return signed-integer difference of the character pointed to by 'p2_str'
*                           from the character pointed to by 'p1_str'.
*
*               (4) Since 16-bit signed arithmetic is performed to calculate a non-identical comparison
*                   return value, 'CPU_CHAR' native data type size MUST be 8-bit.
*********************************************************************************************************
*/

CPU_INT16S  Str_Cmp (const  CPU_CHAR  *p1_str,
                     const  CPU_CHAR  *p2_str)
{
    CPU_INT16S  cmp_val;


    cmp_val = Str_Cmp_N(p1_str,
                        p2_str,
                        DEF_INT_CPU_U_MAX_VAL);

    return (cmp_val);
}


/*$PAGE*/
/*
*********************************************************************************************************
*                                             Str_Cmp_N()
*
* Description : Determine if two strings are identical for up to a maximum number of characters.
*
* Argument(s) : p1_str      Pointer to first  string (see Note #1).
*
*               p2_str      Pointer to second string (see Note #1).
*
*               len_max     Maximum number of characters to compare  (see Note  #3d).
*
* Return(s)   : 0,              if strings are identical             (see Notes #3a1A, #3a2A, #3b, & #3d).
*
*               Negative value, if 'p1_str' is less    than 'p2_str' (see Notes #3a1B1, #3a2B1, & #3c).
*
*               Positive value, if 'p1_str' is greater than 'p2_str' (see Notes #3a1B2, #3a2B2, & #3c).
*
*               See also Note #2b.
*
* Caller(s)   : Application.
*
* Note(s)     : (1) String buffers NOT modified.
*
*               (2) (a) IEEE Std 1003.1, 2004 Edition, Section 'strncmp() : DESCRIPTION' states that :
*
*                       (1) "The strncmp() function shall compare ... the array pointed to by 's1' ('p1_str') 
*                            to the array pointed to by 's2' ('p2_str)" ...
*                       (2)  but "not more than 'n' ('len_max') bytes" of either array.
*
*                   (b) (1) IEEE Std 1003.1, 2004 Edition, Section 'strncmp() : RETURN VALUE' states that
*                          "upon successful completion, strncmp() shall return an integer greater than,
*                           equal to, or less than 0".
*
*                       (2) IEEE Std 1003.1, 2004 Edition, Section 'strncmp() : DESCRIPTION' adds that
*                          "the sign of a non-zero return value is determined by the sign of the difference
*                           between the values of the first pair of bytes ... that differ in the strings
*                           being compared".
*
*               (3) String comparison terminates when :
*
*                   (a) (1) (A) BOTH string pointer(s) are passed NULL pointers.
*                               (1) NULL strings identical; 0 returned.
*
*                           (B) (1) 'p1_str' passed a NULL pointer.
*                                   (a) Return negative value of character pointed to by 'p2_str'.
*
*                               (2) 'p2_str' passed a NULL pointer.
*                                   (a) Return positive value of character pointed to by 'p1_str'.
*
*                       (2) (A) BOTH strings point to NULL.
*                               (1) Strings overlap with NULL address.
*                               (2) Strings identical up to but NOT beyond or including the NULL address;
*                                   0 returned.
*
*                           (B) (1) 'p1_str_cmp_next' points to NULL.
*                                   (a) 'p1_str' overlaps with NULL address.
*                                   (b) Strings compared up to but NOT beyond or including the NULL address.
*                                   (c) Return negative value of character pointed to by 'p2_str_cmp_next'.
*
*                               (2) 'p2_str_cmp_next' points to NULL.
*                                   (a) 'p2_str' overlaps with NULL address.
*                                   (b) Strings compared up to but NOT beyond or including the NULL address.
*                                   (c) Return positive value of character pointed to by 'p1_str_cmp_next'.
*
*                   (b) Terminating NULL character found in both strings.
*                       (1) Strings identical; 0 returned.
*                       (2) Only one NULL character test required in conditional since previous condition
*                           tested character equality.
*
*                   (c) Non-matching characters found.
*                       (1) Return signed-integer difference of the character pointed to by 'p2_str'
*                           from the character pointed to by 'p1_str'.
*
*                   (d) (1) 'len_max' passed a zero length.
*                           (A) Zero-length strings identical; 0 returned.
*
*                       (2) First 'len_max' number of characters identical.
*                           (A) Strings identical; 0 returned.
*
*                       See also Note #2a2.
*
*               (4) Since 16-bit signed arithmetic is performed to calculate a non-identical comparison
*                   return value, 'CPU_CHAR' native data type size MUST be 8-bit.
*********************************************************************************************************
*/
/*$PAGE*/
CPU_INT16S  Str_Cmp_N (const  CPU_CHAR    *p1_str,
                       const  CPU_CHAR    *p2_str,
                              CPU_SIZE_T   len_max)
{
    const  CPU_CHAR    *p1_str_cmp;
    const  CPU_CHAR    *p2_str_cmp;
    const  CPU_CHAR    *p1_str_cmp_next;
    const  CPU_CHAR    *p2_str_cmp_next;
           CPU_INT16S   cmp_val;
           CPU_SIZE_T   cmp_len;


    if (len_max < 1) {                                          /* If cmp len = 0,        rtn 0       (see Note #3d1A). */
        return (0);
    }

    if (p1_str == (const CPU_CHAR *)0) {
        if (p2_str == (const CPU_CHAR *)0) {
            return (0);                                         /* If BOTH str ptrs NULL, rtn 0       (see Note #3a1A). */
        }
        cmp_val = (CPU_INT16S)0 - (CPU_INT16S)(*p2_str);
        return (cmp_val);                                       /* If p1_str NULL, rtn neg p2_str val (see Note #3a1B1).*/
    }
    if (p2_str == (const CPU_CHAR *)0) {
        cmp_val = (CPU_INT16S)(*p1_str);
        return (cmp_val);                                       /* If p2_str NULL, rtn pos p1_str val (see Note #3a1B2).*/
    }


    p1_str_cmp      = p1_str;
    p2_str_cmp      = p2_str;
    p1_str_cmp_next = p1_str_cmp;
    p2_str_cmp_next = p2_str_cmp;
    p1_str_cmp_next++;
    p2_str_cmp_next++;
    cmp_len         = 0u;

    while ((*p1_str_cmp      == *p2_str_cmp)            &&      /* Cmp strs until non-matching chars (see Note #3c) ... */
           (*p1_str_cmp      != (      CPU_CHAR  )'\0') &&      /* ... or NULL chars                 (see Note #3b) ... */
           ( p1_str_cmp_next != (const CPU_CHAR *)  0 ) &&      /* ... or NULL ptr(s) found          (see Note #3a2).   */
           ( p2_str_cmp_next != (const CPU_CHAR *)  0 ) &&
           ( cmp_len         <  (      CPU_SIZE_T)len_max)) {   /* ... or max nbr chars cmp'd        (see Note #3d2).   */
        p1_str_cmp++;
        p2_str_cmp++;
        p1_str_cmp_next++;
        p2_str_cmp_next++;
        cmp_len++;
    }


    if (cmp_len == len_max) {                                   /* If strs     identical for max len nbr of chars, ...  */
        return (0);                                             /* ... rtn 0                 (see Note #3d2A).          */
    }

    if (*p1_str_cmp != *p2_str_cmp) {                           /* If strs NOT identical, ...                           */
                                                                /* ... calc & rtn char diff  (see Note #3c1).           */
         cmp_val = (CPU_INT16S)(*p1_str_cmp) - (CPU_INT16S)(*p2_str_cmp);

    } else if (*p1_str_cmp  == (CPU_CHAR)'\0') {                /* If NULL char(s) found, ...                           */
         cmp_val = (CPU_INT16S)0;                               /* ... strs identical; rtn 0 (see Note #3b).            */

    } else {
        if (p1_str_cmp_next == (const CPU_CHAR *)0) {
            if (p2_str_cmp_next == (const CPU_CHAR *)0) {       /* If BOTH next str ptrs NULL, ...                      */
                cmp_val = (CPU_INT16S)0;                        /* ... rtn 0                       (see Note #3a2A).    */
            } else {                                            /* If p1_str_cmp_next NULL, ...                         */
                                                                /* ... rtn neg p2_str_cmp_next val (see Note #3a2B1).   */
                cmp_val = (CPU_INT16S)0 - (CPU_INT16S)(*p2_str_cmp_next);
            }
        } else {                                                /* If p2_str_cmp_next NULL, ...                         */
            cmp_val = (CPU_INT16S)(*p1_str_cmp_next);           /* ... rtn pos p1_str_cmp_next val (see Note #3a2B2).   */
        }
    }


    return (cmp_val);
}


/*$PAGE*/
/*
*********************************************************************************************************
*                                         Str_CmpIgnoreCase()
*
* Description : Determine if two strings are identical, ignoring case.
*
* Argument(s) : p1_str      Pointer to first  string (see Note #1).
*
*               p2_str      Pointer to second string (see Note #1).
*
* Return(s)   : 0,              if strings are identical             (see Notes #3a1A, #3a2A, & #3b).
*
*               Negative value, if 'p1_str' is less    than 'p2_str' (see Notes #3a1B1, #3a2B1, & #3c).
*
*               Positive value, if 'p1_str' is greater than 'p2_str' (see Notes #3a1B2, #3a2B2, & #3c).
*
*               See also Note #2b.
*
* Caller(s)   : Application.
*
* Note(s)     : (1) String buffers NOT modified.
*
*               (2) (a) IEEE Std 1003.1, 2004 Edition, Section 'strcasecmp() : DESCRIPTION' states that :
*
*                       (1) (A) "The strcasecmp() function shall compare ... the string pointed to by 's1' 
*                                ('p1_str') to the string pointed to by 's2' ('p2_str')" ...
*                           (B) "ignoring differences in case".
*
*                       (2) "strcasecmp() ... shall behave as if the strings had been converted to lowercase
*                            and then a byte comparison performed."
*
*                   (b) (1) IEEE Std 1003.1, 2004 Edition, Section 'strcasecmp() : RETURN VALUE' states that
*                          "upon successful completion, strcasecmp() shall return an integer greater than,
*                           equal to, or less than 0".
*
*                       (2) IEEE Std 1003.1, 2004 Edition, Section 'strcmp() : DESCRIPTION' adds that "the
*                           sign of a non-zero return value shall be determined by the sign of the difference
*                           between the values of the first pair of bytes ... that differ in the strings
*                           being compared".
*
*               (3) String comparison terminates when :
*
*                   (a) (1) (A) BOTH string pointer(s) are passed NULL pointers.
*                               (1) NULL strings identical; 0 returned.
*
*                           (B) (1) 'p1_str' passed a NULL pointer.
*                                   (a) Return negative value of character pointed to by 'p2_str', converted
*                                       to lower case (see Note #2a2).
*
*                               (2) 'p2_str' passed a NULL pointer.
*                                   (a) Return positive value of character pointed to by 'p1_str', converted
*                                       to lower case (see Note #2a2).
*
*                       (2) (A) BOTH strings point to NULL.
*                               (1) Strings overlap with NULL address.
*                               (2) Strings identical up to but NOT beyond or including the NULL address;
*                                   0 returned.
*
*                           (B) (1) 'p1_str_cmp_next' points to NULL.
*                                   (a) 'p1_str' overlaps with NULL address.
*                                   (b) Strings compared up to but NOT beyond or including the NULL address.
*                                   (c) Return negative value of character pointed to by 'p2_str_cmp_next',
*                                       converted to lower case (see Note #2a2).
*
*                               (2) 'p2_str_cmp_next' points to NULL.
*                                   (a) 'p2_str' overlaps with NULL address.
*                                   (b) Strings compared up to but NOT beyond or including the NULL address.
*                                   (c) Return positive value of character pointed to by 'p1_str_cmp_next',
*                                       converted to lower case (see Note #2a2).
*
*                   (b) Terminating NULL character found in both strings.
*                       (1) Strings identical; 0 returned.
*                       (2) Only one NULL character test required in conditional since previous condition
*                           tested character equality.
*
*                   (c) Non-matching characters found.
*                       (1) Return signed-integer difference of the character pointed to by 'p2_str',
*                           converted to lower case, from the character pointed to by 'p1_str', converted
*                           to lower case.
*
*               (4) Since 16-bit signed arithmetic is performed to calculate a non-identical comparison
*                   return value, 'CPU_CHAR' native data type size MUST be 8-bit.
*********************************************************************************************************
*/
/*$PAGE*/
CPU_INT16S  Str_CmpIgnoreCase (const  CPU_CHAR  *p1_str,
                               const  CPU_CHAR  *p2_str)
{
    CPU_INT16S  cmp_val;


    cmp_val = Str_CmpIgnoreCase_N(p1_str,
                                  p2_str,
                                  DEF_INT_CPU_U_MAX_VAL);

    return (cmp_val);
}


/*$PAGE*/
/*
*********************************************************************************************************
*                                        Str_CmpIgnoreCase_N()
*
* Description : Determine if two strings are identical for up to a maximum number of characters,
*                   ignoring case.
*
* Argument(s) : p1_str      Pointer to first  string (see Note #1).
*
*               p2_str      Pointer to second string (see Note #1).
*
*               len_max     Maximum number of characters to compare  (see Note  #3d).
*
* Return(s)   : 0,              if strings are identical             (see Notes #3a1A, #3a2A, #3b, & #3d).
*
*               Negative value, if 'p1_str' is less    than 'p2_str' (see Notes #3a1B1, #3a2B1, & #3c).
*
*               Positive value, if 'p1_str' is greater than 'p2_str' (see Notes #3a1B2, #3a2B2, & #3c).
*
*               See also Note #2b.
*
* Caller(s)   : Application.
*
* Note(s)     : (1) String buffers NOT modified.
*
*               (2) (a) IEEE Std 1003.1, 2004 Edition, Section 'strncasecmp() : DESCRIPTION' states that :
*
*                       (1) (A) "The strncasecmp() function shall compare ... the string pointed to by 's1' 
*                                ('p1_str') to the string pointed to by 's2' ('p2_str')" ...
*                           (B) "ignoring differences in case"                           ...
*                           (C)  but "not more than 'n' ('len_max') bytes" of either string.
*
*                       (2) "strncasecmp() shall behave as if the strings had been converted to lowercase
*                            and then a byte comparison performed."
*
*                   (b) (1) IEEE Std 1003.1, 2004 Edition, Section 'strncasecmp() : RETURN VALUE' states that
*                          "upon successful completion, strncasecmp() shall return an integer greater than,
*                           equal to, or less than 0".
*
*                       (2) IEEE Std 1003.1, 2004 Edition, Section 'strcmp() : DESCRIPTION' adds that "the
*                           sign of a non-zero return value shall be determined by the sign of the difference
*                           between the values of the first pair of bytes ... that differ in the strings
*                           being compared".
*
*               (3) String comparison terminates when :
*
*                   (a) (1) (A) BOTH string pointer(s) are passed NULL pointers.
*                               (1) NULL strings identical; 0 returned.
*
*                           (B) (1) 'p1_str' passed a NULL pointer.
*                                   (a) Return negative value of character pointed to by 'p2_str', converted
*                                       to lower case (see Note #2a2).
*
*                               (2) 'p2_str' passed a NULL pointer.
*                                   (a) Return positive value of character pointed to by 'p1_str', converted
*                                       to lower case (see Note #2a2).
*
*                       (2) (A) BOTH strings point to NULL.
*                               (1) Strings overlap with NULL address.
*                               (2) Strings identical up to but NOT beyond or including the NULL address;
*                                   0 returned.
*
*                           (B) (1) 'p1_str_cmp_next' points to NULL.
*                                   (a) 'p1_str' overlaps with NULL address.
*                                   (b) Strings compared up to but NOT beyond or including the NULL address.
*                                   (c) Return negative value of character pointed to by 'p2_str_cmp_next',
*                                       converted to lower case (see Note #2a2).
*
*                               (2) 'p2_str_cmp_next' points to NULL.
*                                   (a) 'p2_str' overlaps with NULL address.
*                                   (b) Strings compared up to but NOT beyond or including the NULL address.
*                                   (c) Return positive value of character pointed to by 'p1_str_cmp_next',
*                                       converted to lower case (see Note #2a2).
*
*                   (b) Terminating NULL character found in both strings.
*                       (1) Strings identical; 0 returned.
*                       (2) Only one NULL character test required in conditional since previous condition
*                           tested character equality.
*
*                   (c) Non-matching characters found.
*                       (1) Return signed-integer difference of the character pointed to by 'p2_str',
*                           converted to lower case, from the character pointed to by 'p1_str', converted
*                           to lower case.
*
*                   (d) (1) 'len_max' passed a zero length.
*                           (A) Zero-length strings identical; 0 returned.
*
*                       (2) First 'len_max' number of characters identical.
*                           (A) Strings identical; 0 returned.
*
*                       See also Note #2a1C.
*$PAGE*
*               (4) Since 16-bit signed arithmetic is performed to calculate a non-identical comparison
*                   return value, 'CPU_CHAR' native data type size MUST be 8-bit.
*********************************************************************************************************
*/

CPU_INT16S  Str_CmpIgnoreCase_N (const  CPU_CHAR    *p1_str,
                                 const  CPU_CHAR    *p2_str,
                                        CPU_SIZE_T   len_max)
{
    const  CPU_CHAR    *p1_str_cmp;
    const  CPU_CHAR    *p2_str_cmp;
    const  CPU_CHAR    *p1_str_cmp_next;
    const  CPU_CHAR    *p2_str_cmp_next;
           CPU_CHAR     char_1;
           CPU_CHAR     char_2;
           CPU_INT16S   cmp_val;
           CPU_SIZE_T   cmp_len;


    if (len_max < 1) {                                          /* If cmp len = 0,        rtn 0       (see Note #3d1A). */
        return (0);
    }

    if (p1_str == (const CPU_CHAR *)0) {
        if (p2_str == (const CPU_CHAR *)0) {
            return (0);                                         /* If BOTH str ptrs NULL, rtn 0       (see Note #3a1A). */
        }
        char_2  =  ASCII_ToLower(*p2_str);
        cmp_val = (CPU_INT16S)0 - (CPU_INT16S)char_2;
        return (cmp_val);                                       /* If p1_str NULL, rtn neg p2_str val (see Note #3a1B1).*/
    }
    if (p2_str == (const CPU_CHAR *)0) {
        char_1  =  ASCII_ToLower(*p1_str);
        cmp_val = (CPU_INT16S)char_1;
        return (cmp_val);                                       /* If p2_str NULL, rtn pos p1_str val (see Note #3a1B2).*/
    }


    p1_str_cmp      = p1_str;
    p2_str_cmp      = p2_str;
    p1_str_cmp_next = p1_str_cmp;
    p2_str_cmp_next = p2_str_cmp;
    p1_str_cmp_next++;
    p2_str_cmp_next++;
    char_1          = ASCII_ToLower(*p1_str_cmp);
    char_2          = ASCII_ToLower(*p2_str_cmp);
    cmp_len         = 0u;

    while (( char_1          ==  char_2)                &&      /* Cmp strs until non-matching chars (see Note #3c) ... */
           (*p1_str_cmp      != (      CPU_CHAR  )'\0') &&      /* ... or NULL chars                 (see Note #3b) ... */
           ( p1_str_cmp_next != (const CPU_CHAR *)  0 ) &&      /* ... or NULL ptr(s) found          (see Note #3a2).   */
           ( p2_str_cmp_next != (const CPU_CHAR *)  0 ) &&
           ( cmp_len         <  (      CPU_SIZE_T)len_max)) {   /* ... or max nbr chars cmp'd        (see Note #3d2).   */
        p1_str_cmp++;
        p2_str_cmp++;
        p1_str_cmp_next++;
        p2_str_cmp_next++;
        cmp_len++;
        char_1 = ASCII_ToLower(*p1_str_cmp);
        char_2 = ASCII_ToLower(*p2_str_cmp);
    }


    if (cmp_len == len_max) {                                   /* If strs     identical for max len nbr of chars, ...  */
        return (0);                                             /* ... rtn 0                 (see Note #3d2A).          */
    }

    if (char_1 != char_2) {                                     /* If strs NOT identical, ...                           */
         cmp_val = (CPU_INT16S)char_1 - (CPU_INT16S)char_2;     /* ... calc & rtn char diff  (see Note #3c1).           */

    } else if (char_1 == (CPU_CHAR)'\0') {                      /* If NULL char(s) found, ...                           */
         cmp_val = (CPU_INT16S)0;                               /* ... strs identical; rtn 0 (see Note #3b).            */

    } else {
        if (p1_str_cmp_next == (const CPU_CHAR *)0) {
            if (p2_str_cmp_next == (const CPU_CHAR *)0) {       /* If BOTH next str ptrs NULL, ...                      */
                cmp_val = (CPU_INT16S)0;                        /* ... rtn 0                       (see Note #3a2A).    */
            } else {                                            /* If p1_str_cmp_next NULL, ...                         */
                char_2  =  ASCII_ToLower(*p2_str_cmp_next);
                cmp_val = (CPU_INT16S)0 - (CPU_INT16S)char_2;   /* ... rtn neg p2_str_cmp_next val (see Note #3a2B1).   */
            }
        } else {                                                /* If p2_str_cmp_next NULL, ...                         */
            char_1  =  ASCII_ToLower(*p1_str_cmp_next);
            cmp_val = (CPU_INT16S)char_1;                       /* ... rtn pos p1_str_cmp_next val (see Note #3a2B2).   */
        }
    }


    return (cmp_val);
}


/*$PAGE*/
/*
*********************************************************************************************************
*                                             Str_Char()
*
* Description : Search string for first occurrence of specific character.
*
* Argument(s) : pstr            Pointer to string (see Note #1).
*
*               srch_char       Search character.
*
* Return(s)   : Pointer to first occurrence of search character in string, if any    (see Note #2b1).
*
*               Pointer to NULL,                                           otherwise (see Note #2b2).
*
* Caller(s)   : Application.
*
* Note(s)     : (1) String buffer NOT modified.
*
*               (2) (a) IEEE Std 1003.1, 2004 Edition, Section 'strchr() : DESCRIPTION' states that :
*
*                       (1) "The strchr() function shall locate the first occurrence of 'c' ('srch_char') 
*                            ... in the string pointed to by 's' ('pstr')."
*                       (2) "The terminating null byte is considered to be part of the string."
*
*                   (b) IEEE Std 1003.1, 2004 Edition, Section 'strchr() : RETURN VALUE' states that 
*                       "upon completion, strchr() shall return" :
*
*                       (1) "a pointer to the byte," ...
*                       (2) "or a null pointer if the byte was not found."
*                           (A) #### Although NO strchr() specification states to return NULL for 
*                               any other reason(s), NULL is also returned for any error(s).
*
*               (3) String search terminates when :
*
*                   (a) String pointer passed a NULL pointer.
*                       (1) No string search performed; NULL pointer returned.
*
*                   (b) String pointer points to NULL.
*                       (1) String overlaps with NULL address; NULL pointer returned.
*
*                   (c) String's terminating NULL character found.
*                       (1) Search character NOT found in search string; NULL pointer returned 
*                           (see Note #2b2).
*                       (2) Applicable even if search character is the terminating NULL character 
*                           (see Note #2a2).
*
*                   (d) Search character found.
*                       (1) Return pointer to first occurrence of search character in search string
*                           (see Note #2a1).
*********************************************************************************************************
*/

CPU_CHAR  *Str_Char (const  CPU_CHAR  *pstr,
                            CPU_CHAR   srch_char)
{
    CPU_CHAR  *pstr_rtn;


    pstr_rtn = Str_Char_N(pstr,
                          DEF_INT_CPU_U_MAX_VAL,
                          srch_char);

    return (pstr_rtn);
}


/*$PAGE*/
/*
*********************************************************************************************************
*                                            Str_Char_N()
*
* Description : Search string for first occurrence of specific character, up to a maximum number 
*                   of characters.
*
* Argument(s) : pstr            Pointer to string (see Note #1).
*
*               len_max         Maximum number of characters to search (see Notes #2c & #3e).
*
*               srch_char       Search character.
*
* Return(s)   : Pointer to first occurrence of search character in string, if any    (see Note #2b1).
*
*               Pointer to NULL,                                           otherwise (see Note #2b2).
*
* Caller(s)   : Application.
*
* Note(s)     : (1) String buffer NOT modified.
*
*               (2) (a) IEEE Std 1003.1, 2004 Edition, Section 'strchr() : DESCRIPTION' states that :
*
*                       (1) "The strchr() function shall locate the first occurrence of 'c' ('srch_char') 
*                            ... in the string pointed to by 's' ('pstr')."
*                       (2) "The terminating null byte is considered to be part of the string."
*
*                   (b) IEEE Std 1003.1, 2004 Edition, Section 'strchr() : RETURN VALUE' states that 
*                       "upon completion, strchr() shall return" :
*
*                       (1) "a pointer to the byte," ...
*                       (2) "or a null pointer if the byte was not found."
*                           (A) #### Although NO strchr() specification states to return NULL for 
*                               any other reason(s), NULL is also returned for any error(s).
*
*                   (c) Ideally, the 'len_max' argument would be the last argument in this function's
*                       argument list for consistency with all other custom string library functions.
*                       However, the 'len_max' argument is sequentially ordered as the second argument 
*                       to comply with most standard library's strnchr() argument list.
*
*               (3) String search terminates when :
*
*                   (a) String pointer passed a NULL pointer.
*                       (1) No string search performed; NULL pointer returned.
*
*                   (b) String pointer points to NULL.
*                       (1) String overlaps with NULL address; NULL pointer returned.
*
*                   (c) String's terminating NULL character found.
*                       (1) Search character NOT found in search string; NULL pointer returned 
*                           (see Note #2b2).
*                       (2) Applicable even if search character is the terminating NULL character 
*                           (see Note #2a2).
*
*                   (d) Search character found.
*                       (1) Return pointer to first occurrence of search character in search string
*                           (see Note #2a1).
*
*                   (e) 'len_max' number of characters searched.
*                       (1) Search character NOT found in search string within first 'len_max' number 
*                           of characters; NULL pointer returned.
*                       (2) 'len_max' number of characters MAY include terminating NULL character 
*                           (see Note #2a2).
*********************************************************************************************************
*/
/*$PAGE*/
CPU_CHAR  *Str_Char_N (const  CPU_CHAR    *pstr,
                              CPU_SIZE_T   len_max,
                              CPU_CHAR     srch_char)
{
    const  CPU_CHAR    *pstr_char;
           CPU_SIZE_T   len_srch;


    if (pstr == (const CPU_CHAR *)0) {                          /* Rtn NULL if srch str ptr NULL (see Note #3a1).       */
        return ((CPU_CHAR *)0);
    }

    if (len_max < 1) {                                          /* Rtn NULL if srch len = 0      (see Note #3e1).       */
        return ((CPU_CHAR *)0);
    }


    pstr_char = pstr;
    len_srch  = 0u;

    while (( pstr_char != (const CPU_CHAR *)  0 )      &&       /* Srch str until NULL ptr     [see Note #3b]  ...      */
           (*pstr_char != (      CPU_CHAR  )'\0')      &&       /* ... or NULL char            (see Note #3c)  ...      */
           (*pstr_char != (      CPU_CHAR  )srch_char) &&       /* ... or srch char found      (see Note #3d); ...      */
           ( len_srch  <  (      CPU_SIZE_T)len_max)) {         /* ... or max nbr chars srch'd (see Note #3e).          */
        pstr_char++;
        len_srch++;
    }


    if (pstr_char == (const CPU_CHAR *)0) {                     /* Rtn NULL if NULL ptr found      (see Note #3b1).     */
        return ((CPU_CHAR *)0);
    }

    if (len_srch >= len_max) {                                  /* Rtn NULL if srch char NOT found ...                  */
        return ((CPU_CHAR *)0);                                 /* ... within max nbr of chars     (see Note #3e1).     */
    }

    if (*pstr_char != srch_char) {                              /* Rtn NULL if srch char NOT found (see Note #3c1).     */
         return ((CPU_CHAR *)0);
    }


    return ((CPU_CHAR *)pstr_char);                             /* Else rtn ptr to found srch char (see Note #3d1).     */
}


/*$PAGE*/
/*
*********************************************************************************************************
*                                           Str_Char_Last()
*
* Description : Search string for last occurrence of specific character.
*
* Argument(s) : pstr            Pointer to string (see Note #1).
*
*               srch_char       Search character.
*
* Return(s)   : Pointer to last occurrence of search character in string, if any    (see Note #2b1).
*
*               Pointer to NULL,                                          otherwise (see Note #2b2).
*
* Caller(s)   : Application.
*
* Note(s)     : (1) String buffer NOT modified.
*
*               (2) (a) IEEE Std 1003.1, 2004 Edition, Section 'strrchr() : DESCRIPTION' states that :
*
*                       (1) "The strrchr() function shall locate the last occurrence of 'c' ('srch_char') 
*                            ... in the string pointed to by 's' ('pstr')."
*                       (2) "The terminating null byte is considered to be part of the string."
*
*                   (b) IEEE Std 1003.1, 2004 Edition, Section 'strrchr() : RETURN VALUE' states that 
*                       "upon successful completion, strrchr() shall return" :
*
*                       (1) "a pointer to the byte" ...
*                       (2) "or a null pointer if 'c' ('srch_char') does not occur in the string."
*                           (A) #### Although NO strrchr() specification states to return NULL for 
*                               any other reason(s), NULL is also returned for any error(s).
*
*               (3) String search terminates when :
*
*                   (a) String pointer passed a NULL pointer.
*                       (1) No string search performed; NULL pointer returned.
*
*                   (b) String pointer points to NULL.
*                       (1) String overlaps with NULL address; NULL pointer returned.
*
*                   (c) String searched from end to beginning.
*                       (1) Search character NOT found in search string; NULL pointer returned.
*                       (2) Applicable even if search character is the terminating NULL character 
*                           (see Note #2a2).
*
*                   (d) Search character found.
*                       (1) Return pointer to last occurrence of search character in search string 
*                           (see Note #2a1).
*********************************************************************************************************
*/

CPU_CHAR  *Str_Char_Last (const  CPU_CHAR  *pstr,
                                 CPU_CHAR   srch_char)
{
    CPU_CHAR  *pstr_rtn;


    pstr_rtn = Str_Char_Last_N(pstr,
                               DEF_INT_CPU_U_MAX_VAL,
                               srch_char);

    return (pstr_rtn);
}


/*$PAGE*/
/*
*********************************************************************************************************
*                                          Str_Char_Last_N()
*
* Description : Search string for last occurrence of specific character, up to a maximum number 
*                   of characters.
*
* Argument(s) : pstr            Pointer to string (see Note #1).
*
*               len_max         Maximum number of characters to search (see Notes #2c & #3e).
*
*               srch_char       Search character.
*
* Return(s)   : Pointer to last occurrence of search character in string, if any    (see Note #2b1).
*
*               Pointer to NULL,                                          otherwise (see Note #2b2).
*
* Caller(s)   : Application.
*
* Note(s)     : (1) String buffer NOT modified.
*
*               (2) (a) IEEE Std 1003.1, 2004 Edition, Section 'strrchr() : DESCRIPTION' states that :
*
*                       (1) "The strrchr() function shall locate the last occurrence of 'c' ('srch_char') 
*                            ... in the string pointed to by 's' ('pstr')."
*                       (2) "The terminating null byte is considered to be part of the string."
*
*                   (b) IEEE Std 1003.1, 2004 Edition, Section 'strrchr() : RETURN VALUE' states that 
*                       "upon successful completion, strrchr() shall return" :
*
*                       (1) "a pointer to the byte" ...
*                       (2) "or a null pointer if 'c' ('srch_char') does not occur in the string."
*                           (A) #### Although NO strrchr() specification states to return NULL for 
*                               any other reason(s), NULL is also returned for any error(s).
*
*                   (c) Ideally, the 'len_max' argument would be the last argument in this function's
*                       argument list for consistency with all other custom string library functions.
*                       However, the 'len_max' argument is sequentially ordered as the second argument 
*                       to comply with most standard library's strnrchr() argument list.
*
*                       See also 'Str_Char_N()  Note #2c'.
*
*               (3) String search terminates when :
*
*                   (a) String pointer passed a NULL pointer.
*                       (1) No string search performed; NULL pointer returned.
*
*                   (b) String pointer points to NULL.
*                       (1) String overlaps with NULL address; NULL pointer returned.
*
*                   (c) String searched from end to beginning.
*                       (1) Search character NOT found in search string; NULL pointer returned 
*                           (see Note #2b2).
*                       (2) Applicable even if search character is the terminating NULL character 
*                           (see Note #2a2).
*
*                   (d) Search character found.
*                       (1) Return pointer to last occurrence of search character in search string 
*                           (see Note #2a1).
*
*                   (e) 'len_max' number of characters searched.
*                       (1) Search character NOT found in search string within last 'len_max' number 
*                           of characters; NULL pointer returned.
*                       (2) 'len_max' number of characters MAY include terminating NULL character 
*                           (see Note #2a2).
*********************************************************************************************************
*/
/*$PAGE*/
CPU_CHAR  *Str_Char_Last_N (const  CPU_CHAR    *pstr,
                                   CPU_SIZE_T   len_max,
                                   CPU_CHAR     srch_char)
{
    const  CPU_CHAR    *pstr_char;
           CPU_SIZE_T   str_len_max;
           CPU_SIZE_T   str_len;


    if (pstr == (const CPU_CHAR *)0) {                          /* Rtn NULL if srch str ptr NULL (see Note #3a1).       */
        return ((CPU_CHAR *)0);
    }

    if (len_max < 1) {                                          /* Rtn NULL if srch len = 0      (see Note #3e1).       */
        return ((CPU_CHAR *)0);
    }


    pstr_char    = pstr;
     str_len_max = len_max - sizeof((CPU_CHAR)'\0');            /* Str len adj'd for NULL char len.                     */
     str_len     = Str_Len_N(pstr_char, str_len_max);
    pstr_char   += str_len;

    if (pstr_char == (const CPU_CHAR *)0) {                     /* Rtn NULL if NULL ptr found        (see Note #3b1).   */
        return ((CPU_CHAR *)0);
    }

    while (( pstr_char != pstr) &&                              /* Srch str from end until beginning (see Note #3c) ... */
           (*pstr_char != srch_char)) {                         /* ... until srch char found         (see Note #3d).    */
        pstr_char--;
    }


    if (*pstr_char != srch_char) {                              /* Rtn NULL if srch char NOT found   (see Note #3c1).   */
         return ((CPU_CHAR *)0);
    }


    return ((CPU_CHAR *)pstr_char);                             /* Else rtn ptr to found srch char   (see Note #3d1).   */
}


/*$PAGE*/
/*
*********************************************************************************************************
*                                         Str_Char_Replace()
*
* Description : Search string for specific character and replace it by another specific character.
*
* Argument(s) : pstr            Pointer to string (see Note #1).
*
*               char_srch       Search character.
*
*               char_replace    Replace character.
*
* Return(s)   : Pointer to string, if NO error(s).
*
*               Pointer to NULL,   otherwise.
*
* Caller(s)   : Application.
*
* Note(s)     : (1) String buffer modified.
*
*               (2) String search terminates when :
*
*                   (a) String pointer passed a NULL pointer.
*                       (1) No string search performed; NULL pointer returned.
*
*                   (b) String pointer points to NULL.
*                       (1) String overlaps with NULL address; NULL pointer returned.
*
*                   (c) String's terminating NULL character found.
*                       (1) Search character NOT found in search string; NULL pointer returned
*                       (2) Applicable even if search character is the terminating NULL character
*
*                   (d) Search character found.
*                       (1) Replace character found by the specified character.
*********************************************************************************************************
*/

CPU_CHAR  *Str_Char_Replace (CPU_CHAR  *pstr,
                             CPU_CHAR   char_srch,
                             CPU_CHAR   char_replace)
{
    CPU_CHAR  *pstr_rtn;


    pstr_rtn = Str_Char_Replace_N(pstr,
                                  char_srch,
                                  char_replace,
                                  DEF_INT_CPU_U_MAX_VAL);

    return (pstr_rtn);
}


/*$PAGE*/
/*
*********************************************************************************************************
*                                        Str_Char_Replace_N()
*
* Description : Search string for specific character and replace it by another specific character, up to
*               a maximum number of characters.
*
* Argument(s) : pstr            Pointer to string (see Note #1).
*
*               char_srch       Search character.
*
*               char_replace    Replace character.
*
*               len_max         Maximum number of characters to search (see Notes #2c & #3e).
*
* Return(s)   : Pointer to string, if NO error(s).
*
*               Pointer to NULL,   otherwise.
*
* Caller(s)   : Application.
*
* Note(s)     : (1) String buffer modified.
*
*               (2) String search terminates when :
*
*                   (a) String pointer passed a NULL pointer.
*                       (1) No string search performed; NULL pointer returned.
*
*                   (b) String pointer points to NULL.
*                       (1) String overlaps with NULL address; NULL pointer returned.
*
*                   (c) String's terminating NULL character found.
*                       (1) Search character NOT found in search string; NULL pointer returned
*                       (2) Applicable even if search character is the terminating NULL character
*
*                   (d) Search character found.
*                       (1) Replace character found by the specified character.
*
*                   (e) 'len_max' number of characters searched.
*                       (1) Search character NOT found in search string within first 'len_max' number
*                           of characters; NULL pointer returned.
*                       (2) 'len_max' number of characters MAY include terminating NULL character
*                           (see Note #2a2).
*********************************************************************************************************
*/

CPU_CHAR  *Str_Char_Replace_N (CPU_CHAR    *pstr,
                               CPU_CHAR     char_srch,
                               CPU_CHAR     char_replace,
                               CPU_SIZE_T   len_max)
{
    CPU_CHAR    *pstr_char;
    CPU_SIZE_T   len;


    if (pstr == (const CPU_CHAR *)0) {                          /* Rtn NULL if srch str ptr NULL (see Note #2a1).       */
        return ((CPU_CHAR *)0);
    }

    if (len_max < 1) {                                          /* Rtn NULL if srch len = 0      (see Note #2e1).       */
        return ((CPU_CHAR *)0);
    }

    pstr_char = pstr;
    len       = len_max;

    while (( pstr_char != (const CPU_CHAR *)0) &&               /* Srch str until NULL ptr     [see Note #2b]  ...      */
           (*pstr_char !=  ASCII_CHAR_NULL   ) &&               /* ... or NULL char            (see Note #2c)  ...      */
           ( len        >                   0)) {               /* ... or max nbr chars srch'd (see Note #2e).          */

        if (*pstr_char == char_srch) {
            *pstr_char  = char_replace;                         /* Replace char if srch char is found.                  */
        }

        pstr_char++;
        len--;
    }

    return (pstr);
}


/*$PAGE*/
/*
*********************************************************************************************************
*                                              Str_Str()
*
* Description : Search string for first occurence of a specific search string.
*
* Argument(s) : pstr            Pointer to        string (see Note #1).
*
*               pstr_srch       Pointer to search string (see Note #1).
*
* Return(s)   : Pointer to first occurrence of search string in string, if any                (see Note #2b1A).
*
*               Pointer to string,                                      if NULL search string (see Note #2b2).
*
*               Pointer to NULL,                                        otherwise             (see Note #2b1B).
*
* Caller(s)   : Application.
*
* Note(s)     : (1) String buffers NOT modified.
*
*               (2) (a) IEEE Std 1003.1, 2004 Edition, Section 'strstr() : DESCRIPTION' states that :
*
*                       (1) "The strstr() function shall locate the first occurrence  in the string 
*                            pointed to by 's1' ('pstr') of the sequence of bytes ... in the string 
*                            pointed to by 's2' ('pstr_srch')" ...
*                       (2) "(excluding the terminating null byte)."
*
*                   (b) IEEE Std 1003.1, 2004 Edition, Section 'strstr() : RETURN VALUE' states that :
*
*                       (1) "Upon successful completion, strstr() shall return" :
*                           (A) "a pointer to the located string" ...
*                           (B) "or a null pointer if the string is not found."
*                               (1) #### Although NO strstr() specification states to return NULL for 
*                                   any other reason(s), NULL is also returned for any error(s).
*
*                       (2) "If 's2' ('pstr_srch') points to a string with zero length, the function 
*                            shall return 's1' ('pstr')."
*
*               (3) String search terminates when :
*
*                   (a) String pointer(s) are passed NULL pointers.
*                       (1) No string search performed; NULL pointer returned.
*
*                   (b) String pointer(s) point to NULL.
*                       (1) String buffer(s) overlap with NULL address; NULL pointer returned.
*
*                   (c) Search string length equal to zero.
*                       (1) No string search performed; string pointer returned (see Note #2b2).
*
*                   (d) Search string length greater than string length.
*                       (1) No string search performed; NULL   pointer returned (see Note #2b1B).
*
*                   (e) Entire string has been searched.
*                       (1) Search string not found; NULL pointer returned (see Note #2b1B).
*
*                   (f) Search string found.
*                       (1) Return pointer to first occurrence of search string in string (see Note #2b1A).
*********************************************************************************************************
*/

CPU_CHAR  *Str_Str (const  CPU_CHAR  *pstr,
                    const  CPU_CHAR  *pstr_srch)
{
    CPU_CHAR  *pstr_rtn;


    pstr_rtn = Str_Str_N(pstr,
                         pstr_srch,
                         DEF_INT_CPU_U_MAX_VAL);

    return (pstr_rtn);
}


/*$PAGE*/
/*
*********************************************************************************************************
*                                             Str_Str_N()
*
* Description : Search string for first occurence of a specific search string, up to a maximum number 
*                   of characters.
*
* Argument(s) : pstr            Pointer to        string (see Note #1).
*
*               pstr_srch       Pointer to search string (see Note #1).
*
*               len_max         Maximum number of characters to search (see Note #3g).
*
* Return(s)   : Pointer to first occurrence of search string in string, if any                (see Note #2b1A).
*
*               Pointer to string,                                      if NULL search string (see Note #2b2).
*
*               Pointer to NULL,                                        otherwise             (see Note #2b1B).
*
* Caller(s)   : Application.
*
* Note(s)     : (1) String buffers NOT modified.
*
*               (2) (a) IEEE Std 1003.1, 2004 Edition, Section 'strstr() : DESCRIPTION' states that :
*
*                       (1) "The strstr() function shall locate the first occurrence  in the string 
*                            pointed to by 's1' ('pstr') of the sequence of bytes ... in the string 
*                            pointed to by 's2' ('pstr_srch')" ...
*                       (2) "(excluding the terminating null byte)."
*
*                   (b) IEEE Std 1003.1, 2004 Edition, Section 'strstr() : RETURN VALUE' states that :
*
*                       (1) "Upon successful completion, strstr() shall return" :
*                           (A) "a pointer to the located string" ...
*                           (B) "or a null pointer if the string is not found."
*                               (1) #### Although NO strstr() specification states to return NULL for 
*                                   any other reason(s), NULL is also returned for any error(s).
*
*                       (2) "If 's2' ('pstr_srch') points to a string with zero length, the function 
*                            shall return 's1' ('pstr')."
*
*               (3) String search terminates when :
*
*                   (a) String pointer(s) are passed NULL pointers.
*                       (1) No string search performed; NULL pointer returned.
*
*                   (b) String pointer(s) point to NULL.
*                       (1) String buffer(s) overlap with NULL address; NULL pointer returned.
*
*                   (c) Search string length equal to zero.
*                       (1) No string search performed; string pointer returned (see Note #2b2).
*
*                   (d) Search string length greater than string length.
*                       (1) No string search performed; NULL   pointer returned (see Note #2b1B).
*
*                   (e) Entire string has been searched.
*                       (1) Search string not found; NULL pointer returned (see Note #2b1B).
*                       (2) Maximum size of the search is defined as the subtraction of the
*                           search string length from the string length.
*
*                   (f) Search string found.
*                       (1) Return pointer to first occurrence of search string in string (see Note #2b1A).
*                       (2) Search string found via Str_Cmp_N().
*
*                   (g) 'len_max' number of characters searched.
*                       (1) 'len_max' number of characters does NOT include terminating NULL character
*                           (see Note #2a2).
*********************************************************************************************************
*/
/*$PAGE*/
CPU_CHAR  *Str_Str_N (const  CPU_CHAR    *pstr,
                      const  CPU_CHAR    *pstr_srch,
                             CPU_SIZE_T   len_max)
{
           CPU_SIZE_T    str_len;
           CPU_SIZE_T    str_len_srch;
           CPU_SIZE_T    len_max_srch;
           CPU_SIZE_T    srch_len;
           CPU_SIZE_T    srch_ix;
           CPU_BOOLEAN   srch_done;
           CPU_INT16S    srch_cmp;
    const  CPU_CHAR     *pstr_str;
    const  CPU_CHAR     *pstr_srch_ix;

                                                                /* Rtn NULL if str ptr(s) NULL (see Note #3a).          */
    if (pstr == (const CPU_CHAR *)0) {
        return ((CPU_CHAR *)0);
    }
    if (pstr_srch == (const CPU_CHAR *)0) {
        return ((CPU_CHAR *)0);
    }

    if (len_max < 1) {                                          /* Rtn NULL if srch len = 0    (see Note #3g).          */
        return ((CPU_CHAR *)0);
    }

                                                                /* Lim max srch str len (to chk > str len).             */
    len_max_srch = (len_max <       DEF_INT_CPU_U_MAX_VAL)
                 ? (len_max + 1u) : DEF_INT_CPU_U_MAX_VAL;

    str_len      = Str_Len_N(pstr,      len_max);
    str_len_srch = Str_Len_N(pstr_srch, len_max_srch);
    if (str_len_srch < 1) {                                     /* Rtn ptr to str if srch str len = 0 (see Note #2b2).  */
        return ((CPU_CHAR *)pstr);
    }
    if (str_len_srch > str_len) {                               /* Rtn NULL if srch str len > str len (see Note #3d).   */
        return ((CPU_CHAR *)0);
    }
                                                                /* Rtn NULL if NULL ptr found         (see Note #3b1).  */
    pstr_str = pstr      + str_len;
    if (pstr_str == (const CPU_CHAR *)0) {
        return ((CPU_CHAR *)0);
    }
    pstr_str = pstr_srch + str_len_srch;
    if (pstr_str == (const CPU_CHAR *)0) {
        return ((CPU_CHAR *)0);
    }


    srch_len  = str_len - str_len_srch;                         /* Calc srch len (see Note #3e2).                       */
    srch_ix   = 0u;
    srch_done = DEF_NO;

    do {
        pstr_srch_ix = (const CPU_CHAR *)(pstr + srch_ix);
        srch_cmp     =  Str_Cmp_N(pstr_srch_ix, pstr_srch, str_len_srch);
        srch_done    = (srch_cmp == 0) ? DEF_YES : DEF_NO;
        srch_ix++;
    } while ((srch_done == DEF_NO) && (srch_ix <= srch_len));


    if (srch_cmp != 0) {                                        /* Rtn NULL if srch str NOT found (see Note #3e2).      */
        return ((CPU_CHAR *)0);
    }

    return ((CPU_CHAR *)pstr_srch_ix);                          /* Else rtn ptr to found srch str (see Note #3f1).      */
}


/*$PAGE*/
/*
*********************************************************************************************************
*                                         Str_FmtNbr_Int32U()
*
* Description : Format 32-bit unsigned integer into a multi-digit character string.
*
* Argument(s) : nbr             Number           to format.
*
*               nbr_dig         Number of digits to format (see Note #1).
*
*                               The following may be used to specify the number of digits to format :
*
*                                   DEF_INT_32U_NBR_DIG_MIN     Minimum number of 32-bit unsigned digits
*                                   DEF_INT_32U_NBR_DIG_MAX     Maximum number of 32-bit unsigned digits
*
*               nbr_base        Base   of number to format (see Note #2).
*
*                               The following may be used to specify the number base :
*
*                                   DEF_NBR_BASE_BIN            Base  2
*                                   DEF_NBR_BASE_OCT            Base  8
*                                   DEF_NBR_BASE_DEC            Base 10
*                                   DEF_NBR_BASE_HEX            Base 16
*
*               lead_char       Prepend leading character  (see Note #3) :
*
*                                   '\0'                    Do NOT prepend leading character to string.
*                                     Printable character          Prepend leading character to string.
*                                   Unprintable character   Format invalid string (see Note #6).
*
*               lower_case      Format alphabetic characters (if any) in lower case :
*
*                                   DEF_NO          Format alphabetic characters in upper case.
*                                   DEF_YES         Format alphabetic characters in lower case.
*
*               nul             Append terminating NULL-character (see Note #4) :
*
*                                   DEF_NO          Do NOT append terminating NULL-character to string.
*                                   DEF_YES                Append terminating NULL-character to string.
*
*               pstr            Pointer to character array to return formatted number string (see Note #5).
*
* Return(s)   : Pointer to formatted string, if NO error(s).
*
*               Pointer to NULL,             otherwise.
*
* Caller(s)   : Application.
*
* Note(s)     : (1) (a) If the number of digits to format ('nbr_dig') is zero; then NO formatting 
*                       is performed except possible NULL-termination of the string (see Note #4).
*
*                           Example :
*
*                               nbr      = 23456
*                               nbr_dig  = 0
*                               nbr_base = 10
*
*                               pstr     = ""                   See Note #6a
*
*                   (b) If the number of digits to format ('nbr_dig') is less than the number of 
*                       significant integer digits of the number to format ('nbr'); then an invalid 
*                       string is formatted instead of truncating any significant integer digits.
*
*                           Example :
*
*                               nbr      = 23456
*                               nbr_dig  = 3
*                               nbr_base = 10
*
*                               pstr     = "???"                See Note #6b
*
*               (2) The number's base MUST be between 2 & 36, inclusive.
*$PAGE*
*               (3) Leading character option prepends leading characters prior to the first non-zero digit.
*
*                   (a) (1) Leading character MUST be a printable ASCII character.
*
*                       (2) (A) Leading character MUST NOT be a number base digit, ...
*                           (B) with the exception of '0'.
*
*                   (b) The number of leading characters is such that the total number of significant 
*                       integer digits plus the number of leading characters is equal to the requested 
*                       number of integer digits to format ('nbr_dig').
*
*                           Example :
*
*                               nbr       = 23456
*                               nbr_dig   = 7
*                               nbr_base  = 10
*                               lead_char = ' '
*
*                               pstr      = "  23456"
*
*                   (c) (1) If the value of the number to format is     zero  ...
*                       (2) ... & the number of digits to format is non-zero, ...
*                       (3) ... but NO leading character available;           ...
*                       (4) ... then one digit of '0' value is formatted.
*
*                           This is NOT a leading character; but a single integer digit of '0' value.
*
*               (4) (a) NULL-character terminate option DISABLED prevents overwriting previous character
*                       array formatting.
*
*                   (b) WARNING: Unless 'pstr' character array is pre-/post-terminated, NULL-character
*                       terminate option DISABLED will cause character string run-on.
*
*               (5) (a) Format buffer size NOT validated; buffer overruns MUST be prevented by caller.
*
*                   (b) To prevent character buffer overrun :
*
*                           Character array size MUST be  >=  ('nbr_dig'          +
*                                                               1 'NUL' terminator)  characters
*
*               (6) For any unsuccessful string format or error(s), an invalid string of question marks 
*                   ('?') will be formatted, where the number of question marks is determined by the 
*                   number of digits to format ('nbr_dig') :
*
*                      Invalid string's     {  (a)   0 (NULL string)  ,  if 'nbr_dig' = 0
*                          number of     =  {
*                       question marks      {  (b)  'nbr_dig'         ,  if 'nbr_dig' > 0
*
*********************************************************************************************************
*/

CPU_CHAR  *Str_FmtNbr_Int32U (CPU_INT32U    nbr,
                              CPU_INT08U    nbr_dig,
                              CPU_INT08U    nbr_base,
                              CPU_CHAR      lead_char,
                              CPU_BOOLEAN   lower_case,
                              CPU_BOOLEAN   nul,
                              CPU_CHAR     *pstr)
{
    CPU_CHAR  *pstr_fmt;


    pstr_fmt = Str_FmtNbr_Int32(nbr,                            /* Fmt unsigned int into str.                           */
                                nbr_dig,
                                nbr_base,
                                DEF_NO,
                                lead_char,
                                lower_case,
                                nul,
                                pstr);

    return (pstr_fmt);
}


/*$PAGE*/
/*
*********************************************************************************************************
*                                         Str_FmtNbr_Int32S()
*
* Description : Format 32-bit signed integer into a multi-digit character string.
*
* Argument(s) : nbr             Number           to format.
*
*               nbr_dig         Number of digits to format (see Note #1).
*
*                               The following may be used to specify the number of digits to format :
*
*                                   DEF_INT_32S_NBR_DIG_MIN + 1     Minimum number of 32-bit signed digits
*                                   DEF_INT_32S_NBR_DIG_MAX + 1     Maximum number of 32-bit signed digits
*                                                                   (plus 1 digit for possible negative sign)
*
*               nbr_base        Base   of number to format (see Note #2).
*
*                               The following may be used to specify the number base :
*
*                                   DEF_NBR_BASE_BIN            Base  2
*                                   DEF_NBR_BASE_OCT            Base  8
*                                   DEF_NBR_BASE_DEC            Base 10
*                                   DEF_NBR_BASE_HEX            Base 16
*
*               lead_char       Prepend leading character  (see Note #3) :
*
*                                   '\0'                    Do NOT prepend leading character to string.
*                                     Printable character          Prepend leading character to string.
*                                   Unprintable character   Format invalid string (see Note #6).
*
*               lower_case      Format alphabetic characters (if any) in lower case :
*
*                                   DEF_NO          Format alphabetic characters in upper case.
*                                   DEF_YES         Format alphabetic characters in lower case.
*
*               nul             Append terminating NULL-character (see Note #4) :
*
*                                   DEF_NO          Do NOT append terminating NULL-character to string.
*                                   DEF_YES                Append terminating NULL-character to string.
*
*               pstr            Pointer to character array to return formatted number string (see Note #5).
*
* Return(s)   : Pointer to formatted string, if NO error(s).
*
*               Pointer to NULL,             otherwise.
*
* Caller(s)   : Application.
*
* Note(s)     : (1) (a) If the number of digits to format ('nbr_dig') is zero; then NO formatting 
*                       is performed except possible NULL-termination of the string (see Note #4).
*
*                           Example :
*
*                               nbr      = -23456
*                               nbr_dig  =  0
*                               nbr_base = 10
*
*                               pstr     = ""                   See Note #6a
*
*                   (b) If the number of digits to format ('nbr_dig') is less than the number of 
*                       significant integer digits of the number to format ('nbr'); then an invalid 
*                       string is formatted instead of truncating any significant integer digits.
*
*                           Example :
*
*                               nbr      = 23456
*                               nbr_dig  = 3
*                               nbr_base = 10
*
*                               pstr     = "???"                See Note #6b
*
*                   (c) If the number to format ('nbr') is negative but the number of digits to format 
*                       ('nbr_dig') is equal to the number of significant integer digits of the number 
*                       to format ('nbr'); then an invalid string is formatted instead of truncating 
*                       the negative sign.
*
*                           Example :
*
*                               nbr      = -23456
*                               nbr_dig  =  5
*                               nbr_base = 10
*
*                               pstr     = "?????"              See Note #6b
*
*               (2) The number's base MUST be between 2 & 36, inclusive.
*$PAGE*
*               (3) Leading character option prepends leading characters prior to the first non-zero digit.
*
*                   (a) (1) Leading character MUST be a printable ASCII character.
*
*                       (2) (A) Leading character MUST NOT be a number base digit, ...
*                           (B) with the exception of '0'.
*
*                   (b) (1) The number of leading characters is such that the total number of significant 
*                           integer digits plus the number of leading characters plus possible negative 
*                           sign character is equal to the requested number of integer digits to format 
*                           ('nbr_dig').
*
*                               Examples :
*
*                                   nbr       = 23456
*                                   nbr_dig   = 7
*                                   nbr_base  = 10
*                                   lead_char = ' '
*
*                                   pstr      = "  23456"
*
*
*                                   nbr       = -23456
*                                   nbr_dig   =  7
*                                   nbr_base  = 10
*                                   lead_char = ' '
*
*                                   pstr      = " -23456"
*
*                       (2) (A) If the number to format ('nbr') is negative AND the leading character 
*                               ('lead_char') is     a '0' digit; then the negative sign character 
*                               prefixes all leading characters prior to the formatted number.
*
*                                   Examples :
*
*                                       nbr        = -23456
*                                       nbr_dig    =  8
*                                       nbr_base   = 10
*                                       lead_char  = '0'
*
*                                       pstr       = "-0023456"
*
*
*                                       nbr        = -43981
*                                       nbr_dig    =  8
*                                       nbr_base   = 16
*                                       lead_char  = '0'
*                                       lower_case = DEF_NO
*
*                                       pstr       = "-000ABCD"
*
*                           (B) If the number to format ('nbr') is negative AND the leading character 
*                               ('lead_char') is NOT a '0' digit; then the negative sign character 
*                               immediately prefixes the most significant digit of the formatted number.
*
*                                   Examples :
*
*                                       nbr        = -23456
*                                       nbr_dig    =  8
*                                       nbr_base   = 10
*                                       lead_char  = '#'
*
*                                       pstr       = "##-23456"
*
*
*                                       nbr        = -43981
*                                       nbr_dig    =  8
*                                       nbr_base   = 16
*                                       lead_char  = '#'
*                                       lower_case = DEF_YES
*
*                                       pstr       = "###-abcd"
*
*                   (c) (1) If the value of the number to format is     zero  ...
*                       (2) ... & the number of digits to format is non-zero, ...
*                       (3) ... but NO leading character available;           ...
*                       (4) ... then one digit of '0' value is formatted.
*
*                           This is NOT a leading character; but a single integer digit of '0' value.
*$PAGE*
*               (4) (a) NULL-character terminate option DISABLED prevents overwriting previous character
*                       array formatting.
*
*                   (b) WARNING: Unless 'pstr' character array is pre-/post-terminated, NULL-character
*                       terminate option DISABLED will cause character string run-on.
*
*               (5) (a) Format buffer size NOT validated; buffer overruns MUST be prevented by caller.
*
*                   (b) To prevent character buffer overrun :
*
*                           Character array size MUST be  >=  ('nbr_dig'          +
*                                                               1 negative sign   +
*                                                               1 'NUL' terminator)  characters
*
*               (6) For any unsuccessful string format or error(s), an invalid string of question marks 
*                   ('?') will be formatted, where the number of question marks is determined by the 
*                   number of digits to format ('nbr_dig') :
*
*                      Invalid string's     {  (a)   0 (NULL string)  ,  if 'nbr_dig' = 0
*                          number of     =  {
*                       question marks      {  (b)  'nbr_dig'         ,  if 'nbr_dig' > 0
*
*********************************************************************************************************
*/

CPU_CHAR  *Str_FmtNbr_Int32S (CPU_INT32S    nbr,
                              CPU_INT08U    nbr_dig,
                              CPU_INT08U    nbr_base,
                              CPU_CHAR      lead_char,
                              CPU_BOOLEAN   lower_case,
                              CPU_BOOLEAN   nul,
                              CPU_CHAR     *pstr)
{
    CPU_CHAR     *pstr_fmt;
    CPU_INT32S    nbr_fmt;
    CPU_BOOLEAN   nbr_neg;


    if (nbr < 0) {                                              /* If nbr neg, ...                                      */
        nbr_fmt = -nbr;                                         /* ... negate nbr.                                      */
        nbr_neg =  DEF_YES;
    } else {
        nbr_fmt =  nbr;
        nbr_neg =  DEF_NO;
    }

    pstr_fmt = Str_FmtNbr_Int32((CPU_INT32U)nbr_fmt,            /* Fmt signed int into str.                             */
                                            nbr_dig,
                                            nbr_base,
                                            nbr_neg,
                                            lead_char,
                                            lower_case,
                                            nul,
                                            pstr);

    return (pstr_fmt);
}


/*$PAGE*/
/*
*********************************************************************************************************
*                                           Str_FmtNbr_32()
*
* Description : Format number into a multi-digit character string.
*
* Argument(s) : nbr             Number                         to format (see Note #1).
*
*               nbr_dig         Number of decimal       digits to format (see Note #2).
*
*               nbr_dp          Number of decimal point digits to format.
*
*               lead_char       Prepend leading character (see Note #3) :
*
*                                   '\0'                    Do NOT prepend leading character to string.
*                                     Printable character          Prepend leading character to string.
*                                   Unprintable character   Format invalid string (see Note #6d).
*
*               nul             Append terminating NULL-character (see Note #4) :
*
*                                   DEF_NO          Do NOT append terminating NULL-character to string.
*                                   DEF_YES                Append terminating NULL-character to string.
*
*               pstr            Pointer to character array to return formatted number string (see Note #5).
*
* Return(s)   : Pointer to formatted string, if NO error(s) [see Note #6c].
*
*               Pointer to NULL,             otherwise.
*
* Caller(s)   : Application.
*
* Note(s)     : (1) (a) The maximum accuracy for 32-bit floating-point numbers :
*
*
*                                 Maximum Accuracy            log [Internal-Base ^ (Number-Internal-Base-Digits)]
*                           32-bit Floating-point Number  =  -----------------------------------------------------
*                                                                             log [External-Base]
*
*                                                             log [2 ^ 24]
*                                                         =  --------------
*                                                               log [10]
*
*                                                         <  7.225  Base-10 Digits
*
*                               where
*                                       Internal-Base                   Internal number base of floating-
*                                                                           point numbers (i.e.  2)
*                                       External-Base                   External number base of floating-
*                                                                           point numbers (i.e. 10)
*                                       Number-Internal-Base-Digits     Number of internal number base
*                                                                           significant digits (i.e. 24)
*
*                   (b) Some CPUs' &/or compilers' floating-point implementations MAY further reduce the 
*                       maximum accuracy.
*$PAGE*
*               (2) (a) If the total number of digits to format ('nbr_dig + nbr_dp') is zero; then NO 
*                       formatting is performed except possible NULL-termination of the string (see Note #4).
*
*                           Example :
*
*                               nbr     = -23456.789
*                               nbr_dig =  0
*                               nbr_dp  =  0
*
*                               pstr    = ""                        See Note #7a
*
*                   (b) (1) If the number of digits to format ('nbr_dig') is less than the number of 
*                           significant integer digits of the number to format ('nbr'); then an invalid 
*                           string is formatted instead of truncating any significant integer digits.
*
*                               Example :
*
*                                   nbr     = 23456.789
*                                   nbr_dig = 3
*                                   nbr_dp  = 2
*
*                                   pstr    = "??????"              See Note #7d
*
*                       (2) If the number to format ('nbr') is negative but the number of digits to format 
*                           ('nbr_dig') is equal to the number of significant integer digits of the number 
*                           to format ('nbr'); then an invalid string is formatted instead of truncating 
*                           the negative sign.
*
*                               Example :
*
*                                   nbr     = -23456.789
*                                   nbr_dig =  5
*                                   nbr_dp  =  2
*
*                                   pstr    = "????????"            See Note #7d
*
*                       (3) If the number to format ('nbr') is negative but the number of significant 
*                           integer digits is zero, & the number of digits to format ('nbr_dig') is one 
*                           but the number of decimal point digits to format ('nbr_dp') is zero; then 
*                           an invalid string is formatted instead of truncating the negative sign.
*
*                               Example :
*
*                                   nbr     = -0.7895
*                                   nbr_dig =  1
*                                   nbr_dp  =  0
*
*                                   pstr    = "?"                   See Note #7d
*
*                       (4) (A) If the number to format ('nbr') is negative but the number of significant 
*                               integer digits is zero, & the number of digits to format ('nbr_dig') is 
*                               zero but the number of decimal point digits to format ('nbr_dp') is non-
*                               zero; then the negative sign immediately prefixes the decimal point -- 
*                               with NO decimal digits formatted, NOT even a single decimal digit of '0'.
*
*                                   Example :
*
*                                       nbr     = -0.7895
*                                       nbr_dig =  0
*                                       nbr_dp  =  2
*
*                                       pstr    = "-.78"
*
*                           (B) If the number to format ('nbr') is positive but the number of significant 
*                               integer digits is zero, & the number of digits to format ('nbr_dig') is 
*                               zero but the number of decimal point digits to format ('nbr_dp') is non-
*                               zero; then a single decimal digit of '0' prefixes the decimal point.
*
*                               This '0' digit is used whenever a negative sign is not formatted (see 
*                               Note #2b4A) so that the formatted string's decimal point is not floating, 
*                               but fixed in the string as the 2nd character.
*
*                                   Example :
*
*                                       nbr     =  0.7895
*                                       nbr_dig =  0
*                                       nbr_dp  =  2
*
*                                       pstr    = "0.78"
*$PAGE*
*                   (c) (1) If the total number of digits to format ('nbr_dig + nbr_dp') is greater than ... :
*
*                           (A) ... the maximum accuracy of the CPU's &/or compiler's 32-bit floating-point 
*                               numbers, digits following all significantly-accurate digits of the number to 
*                               format ('nbr') will be inaccurate; ...
*                           (B) ... the configured maximum accuracy ('LIB_STR_CFG_FP_MAX_NBR_DIG_SIG'), all 
*                               digits or decimal places following all significantly-accurate digits of the 
*                               number to format ('nbr') will be replaced & formatted with zeros ('0').
*
*                                   Example :
*
*                                       nbr                            = 123456789.012345
*                                       nbr_dig                        = 9
*                                       nbr_dp                         = 6
*                                       LIB_STR_CFG_FP_MAX_NBR_DIG_SIG = 7
*
*                                       pstr                           = "123456700.000000"
*
*                       (2) Therefore, one or more least-significant digit(s) of the number to format ('nbr') 
*                           MAY be rounded & not necessarily truncated due to the inaccuracy of the CPU's 
*                           &/or compiler's floating-point implementation.
*
*                       See also Note #1.
*
*               (3) Leading character option prepends leading characters prior to the first non-zero digit.
*
*                   (a) (1) Leading character MUST be a printable ASCII character.
*
*                       (2) (A) Leading character MUST NOT be a base-10 digit, ...
*                           (B) with the exception of '0'.
*
*                   (b) (1) The number of leading characters is such that the total number of significant 
*                           integer digits plus the number of leading characters plus possible negative 
*                           sign character is equal to the requested number of integer digits to format 
*                           ('nbr_dig').
*
*                               Examples :
*
*                                   nbr       = 23456.789
*                                   nbr_dig   = 7
*                                   nbr_dp    = 2
*                                   lead_char = ' '
*
*                                   pstr      = "  23456.78"
*
*
*                                   nbr       = -23456.789
*                                   nbr_dig   =  7
*                                   nbr_dp    =  2
*                                   lead_char = ' '
*
*                                   pstr      = " -23456.78"
*
*                       (2) (A) If the number to format ('nbr') is negative AND the leading character 
*                               ('lead_char') is     a '0' digit; then the negative sign character 
*                               prefixes all leading characters prior to the formatted number.
*
*                                   Example :
*
*                                       nbr       = -23456.789
*                                       nbr_dig   =  8
*                                       nbr_dp    =  2
*                                       lead_char = '0'
*
*                                       pstr      = "-0023456.78"
*
*                           (B) If the number to format ('nbr') is negative AND the leading character 
*                               ('lead_char') is NOT a '0' digit; then the negative sign character 
*                               immediately prefixes the most significant digit of the formatted number.
*
*                                   Examples :
*
*                                       nbr       = -23456.789
*                                       nbr_dig   =  8
*                                       nbr_dp    =  2
*                                       lead_char = '#'
*
*                                       pstr      = "##-23456.78"
*
*                   (c) (1) If the integer value of the number to format is zero & ...
*                       (2) ... the number of digits to format is greater than one ...
*                       (3) ... OR  the number is NOT negative,                    ...
*                       (4) ... but NO leading character available;                ...
*                       (5) ... then one digit of '0' value is formatted.
*
*                           This is NOT a leading character; but a single integer digit of '0' value.
*
*                       See also Note #2b4B.
*$PAGE*
*               (4) (a) NULL-character terminate option DISABLED prevents overwriting previous character
*                       array formatting.
*
*                   (b) WARNING: Unless 'pstr' character array is pre-/post-terminated, NULL-character
*                       terminate option DISABLED will cause character string run-on.
*
*               (5) (a) Format buffer size NOT validated; buffer overruns MUST be prevented by caller.
*
*                   (b) To prevent character buffer overrun :
*
*                           Character array size MUST be  >=  ('nbr_dig'          +
*                                                              'nbr_dp'           +
*                                                               1 negative sign   +
*                                                               1 decimal point   +
*                                                               1 'NUL' terminator)  characters
*
*               (6) String format terminates when :
*
*                   (a) Format string pointer is passed a NULL pointer.
*                       (1) No      string formatted;                NULL pointer returned.
*
*                   (b) Total number of digits to format ('nbr_dig + nbr_dp') is zero.
*                       (1) NULL    string formatted (see Note #7a); NULL pointer returned.
*
*                   (c) Number of digits to format ('nbr_dig') is less than number of significant 
*                           integer digits of the number to format ('nbr'), including possible 
*                           negative sign.
*                       (1) Invalid string formatted (see Note #7);  NULL pointer returned.
*
*                   (d) Lead character is NOT a valid, printable character (see Note #3a).
*                       (1) Invalid string formatted (see Note #7);  NULL pointer returned.
*
*                   (e) Number successfully formatted into character string array.
*
*               (7) For any unsuccessful string format or error(s), an invalid string of question marks 
*                   ('?') will be formatted, where the number of question marks is determined by the 
*                   number of digits ('nbr_dig') & number of decimal point digits ('nbr_dp') to format :
*
*                                           {  (a)    0 (NULL string)          ,  if 'nbr_dig' = 0  AND
*                                           {                                        'nbr_dp'  = 0
*                                           {
*                                           {  (b)   'nbr_dig'                 ,  if 'nbr_dig' > 0  AND
*                                           {                                        'nbr_dp'  = 0
*                      Invalid string's     {
*                          number of     =  {  (c)  ['nbr_dp'               +  ,  if 'nbr_dig' = 0  AND
*                       question marks      {         1 (for decimal point) +        'nbr_dp'  > 0
*                                           {         1 (for negative sign) ]
*                                           {
*                                           {  (d)  ['nbr_dig'              +  ,  if 'nbr_dig' > 0  AND
*                                           {        'nbr_dp'               +        'nbr_dp'  > 0
*                                           {         1 (for decimal point) ]
*
*********************************************************************************************************
*/

#if (LIB_STR_CFG_FP_EN == DEF_ENABLED)
CPU_CHAR  *Str_FmtNbr_32 (CPU_FP32      nbr,
                          CPU_INT08U    nbr_dig,
                          CPU_INT08U    nbr_dp,
                          CPU_CHAR      lead_char,
                          CPU_BOOLEAN   nul,
                          CPU_CHAR     *pstr)
{
    CPU_CHAR     *pstr_fmt;
    CPU_DATA      i;
    CPU_FP32      nbr_fmt;
    CPU_FP32      nbr_log;
    CPU_INT32U    nbr_shiftd;
    CPU_INT16U    nbr_dig_max;
    CPU_INT16U    nbr_dig_sig;
    CPU_INT08U    nbr_neg_sign;
    CPU_INT08U    dig_val;
    CPU_FP32      dig_exp;
    CPU_FP32      dp_exp;
    CPU_BOOLEAN   lead_char_dig;
    CPU_BOOLEAN   lead_char_fmtd;
    CPU_BOOLEAN   lead_char_0;
    CPU_BOOLEAN   fmt_invalid;
    CPU_BOOLEAN   print_char;
    CPU_BOOLEAN   nbr_neg;
    CPU_BOOLEAN   nbr_neg_fmtd;


/*$PAGE*/
                                                                /* ---------------- VALIDATE FMT ARGS ----------------- */
    if (pstr == (CPU_CHAR *)0) {                                /* Rtn NULL if str ptr NULL (see Note #6a).             */
        return ((CPU_CHAR *)0);
    }

    fmt_invalid = DEF_NO;

    if ((nbr_dig < 1) && (nbr_dp < 1)) {                        /* If nbr digs/dps = 0, ...                             */
        fmt_invalid = DEF_YES;                                  /* ... fmt invalid str (see Note #6b).                  */
    }

    if (lead_char != (CPU_CHAR)'\0') {
        print_char =  ASCII_IsPrint(lead_char);
        if (print_char != DEF_YES) {                            /* If lead char non-printable  (see Note #3a1), ...     */
            fmt_invalid = DEF_YES;                              /* ... fmt invalid str         (see Note #6d).          */

        } else if (lead_char != '0') {                          /* Chk lead char for non-0 dig.                         */
            lead_char_dig = ASCII_IsDig(lead_char);
            if (lead_char_dig == DEF_YES) {                     /* If  lead char     non-0 dig (see Note #3a2A), ...    */
                fmt_invalid = DEF_YES;                          /* ... fmt invalid str         (see Note #6d).          */
            }
        }
    }


                                                                /* ----------------- PREPARE NBR FMT ------------------ */
    pstr_fmt = pstr;

    if (fmt_invalid == DEF_NO) {
        if (nbr < 0.0f) {                                       /* If nbr neg, ...                                      */
            nbr_fmt      = -nbr;                                /* ... negate nbr.                                      */
            nbr_neg_sign =  1u;
            nbr_neg      =  DEF_YES;
        } else {
            nbr_fmt      =  nbr;
            nbr_neg_sign =  0u;
            nbr_neg      =  DEF_NO;
        }

        nbr_log     = nbr_fmt;
        nbr_dig_max = 0u;
        while (nbr_log >= 1.0f) {                               /* While base-10 digs avail, ...                        */
            nbr_dig_max++;                                      /* ... calc max nbr digs.                               */
            nbr_log /= 10.0f;
        }

        if (((nbr_dig >= (nbr_dig_max + nbr_neg_sign)) ||       /* If req'd nbr digs >= (max nbr digs + neg sign)    .. */
             (nbr_dig_max < 1))                        &&       /* .. or NO nbr digs,                                .. */
            ((nbr_dig     > 1) ||                               /* .. but NOT [(req'd nbr dig = 1) AND               .. */
             (nbr_dp      > 0) ||                               /* ..          (req'd nbr dp  = 0) AND               .. */
             (nbr_neg == DEF_NO))) {                            /* ..          (      nbr neg    )]   (see Note #2b3).  */
                                                                /* .. prepare nbr digs to fmt.                          */
            dig_exp = 1.0f;
            for (i = 1u; i < nbr_dig; i++) {
                dig_exp *= 10.0f;
            }

            nbr_neg_fmtd   =  DEF_NO;
            nbr_dig_sig    =  0u;
            lead_char_fmtd =  DEF_NO;
            lead_char_0    = (lead_char == '0')                 /* Chk if lead char a '0' dig (see Note #3b2).          */
                           ?  DEF_YES : DEF_NO;

        } else {                                                /* Else if nbr trunc'd, ...                             */
            fmt_invalid = DEF_YES;                              /* ... fmt invalid str (see Note #6c).                  */
        }
    }


/*$PAGE*/
                                                                /* ------------------- FMT NBR STR -------------------- */
    for (i = nbr_dig; i > 0; i--) {                             /* Fmt str for desired nbr digs :                       */
        if (fmt_invalid == DEF_NO) {
            if (nbr_dig_sig < LIB_STR_CFG_FP_MAX_NBR_DIG_SIG) { /* If nbr sig digs < max, fmt str digs;           ...   */
                nbr_shiftd = (CPU_INT32U)(nbr_fmt / dig_exp);
                if ((nbr_shiftd > 0) ||                         /* If shifted nbr > 0                          ...      */
                    (i == 1u)) {                                /* ... OR on one's dig to fmt (see Note #3c1), ...      */
                                                                /* ... calc & fmt dig val;                     ...      */
                    if ((nbr_neg      == DEF_YES) &&            /* If  nbr neg                     ...                  */
                        (nbr_neg_fmtd == DEF_NO )) {            /* ... but neg sign NOT yet fmt'd; ...                  */

                        if (lead_char_fmtd == DEF_YES) {        /* ... & if lead char(s) fmt'd,    ...                  */
                            pstr_fmt--;                         /* ... replace last lead char w/   ...                  */
                        }
                       *pstr_fmt++   = '-';                     /* ... prepend neg sign (see Notes #2b & #3b).          */
                        nbr_neg_fmtd = DEF_YES;
                    }

                    if (nbr_shiftd > 0) {                       /* If shifted nbr > 0,        ...                       */
                        dig_val    = (CPU_INT08U)(nbr_shiftd % 10u);
                       *pstr_fmt++ = (CPU_CHAR  )(dig_val    + '0');

                        nbr_dig_sig++;                          /* ... inc nbr sig digs;      ...                       */

                    } else if ((nbr_dig > 1) ||                 /* ... else if req'd digs > 1 ...                       */
                               (nbr_neg == DEF_NO)) {           /* ... or non-neg nbr,        ...                       */
                       *pstr_fmt++ = '0';                       /* ... fmt one '0' char (see Note #3c5).                */
                    }

                } else if ((nbr_neg      == DEF_YES) &&         /* ... else if nbr neg                         ...      */
                           (lead_char_0  == DEF_YES) &&         /* ... & lead char a '0' dig                   ...      */
                           (nbr_neg_fmtd == DEF_NO )) {         /* ... but neg sign NOT yet fmt'd,             ...      */

                   *pstr_fmt++   = '-';                         /* ... prepend neg sign (see Note #3b);        ...      */
                    nbr_neg_fmtd = DEF_YES;

                } else if (lead_char != (CPU_CHAR)'\0') {       /* ... else if avail,                          ...      */
                   *pstr_fmt++     = lead_char;                 /* ... fmt lead char.                                   */
                    lead_char_fmtd = DEF_YES;
                }

                dig_exp /= 10.0f;                               /* Shift to next least-sig dig.                         */

            } else {                                            /* ... else append non-sig 0's (see Note #2c2).         */
               *pstr_fmt++ = '0';
            }

        } else {                                                /* Else fmt '?' for invalid str (see Note #7).          */
           *pstr_fmt++ = '?';
        }
    }


/*$PAGE*/
    if (nbr_dp > 0) {                                           /* Fmt str for desired nbr dp :                         */
        if (nbr_dig < 1) {                                      /* If NO digs fmt'd;                             ...    */
            if (fmt_invalid == DEF_NO) {                        /* ... nbr fmt valid,                            ...    */
                if ((nbr_neg      == DEF_YES) &&                /* ... nbr neg                                   ...    */
                    (nbr_neg_fmtd == DEF_NO )) {                /* ... but neg sign NOT yet fmt'd,               ...    */
                    *pstr_fmt++ = '-';                          /* ... prepend neg sign (see Notes #2b & #3b);   ...    */
                } else {                                        /* ... else prepend 1 dig of '0' (see Note #3c5) ...    */
                    *pstr_fmt++ = '0';
                }
            } else {                                            /* ... else fmt '?' for invalid str (see Note #7).      */
                *pstr_fmt++ = '?';
            }
        }

        if (fmt_invalid == DEF_NO) {                            /* If nbr fmt valid, ...                                */
           *pstr_fmt++ = '.';                                   /* ... append dp prior to dp conversion.                */
        } else {                                                /* Else fmt '?' for invalid str (see Note #7).          */
           *pstr_fmt++ = '?';
        }

        dp_exp = 10.0f;
        for (i = 0u; i < nbr_dp; i++) {
            if (fmt_invalid == DEF_NO) {
                                                                /* If nbr sig digs < max, fmt str dps;    ...           */
                if (nbr_dig_sig <  LIB_STR_CFG_FP_MAX_NBR_DIG_SIG) {
                    nbr_shiftd  = (CPU_INT32U)(nbr_fmt * dp_exp);
                    dig_val     = (CPU_INT32U)(nbr_shiftd % 10u);
                   *pstr_fmt++  = (CPU_CHAR  )(dig_val    + '0');
                    dp_exp     *=  10.0f;                       /* Shift to next least-sig dp.                          */

                    if ((nbr_shiftd  > 0) ||                    /* If shifted nbr > 0                  ...              */
                        (nbr_dig_sig > 0)) {                    /* ... OR  > 0 sig digs already fmt'd, ...              */
                         nbr_dig_sig++;                         /* ... inc nbr sig digs.                                */
                    }

                } else {                                        /* ... else append non-sig 0's (see Note #2c2).         */
                   *pstr_fmt++ = '0';
                }

            } else {                                            /* Else fmt '?' for invalid str (see Note #7).          */
               *pstr_fmt++ = '?';
            }
        }
    }


    if (nul != DEF_NO) {                                        /* If NOT DISABLED, append NULL char (see Note #4).     */
       *pstr_fmt = (CPU_CHAR)'\0';
    }


    if (fmt_invalid != DEF_NO) {                                /* Rtn NULL for invalid str fmt (see Notes #6a - #6d).  */
        return ((CPU_CHAR *)0);
    }


    return (pstr);                                              /* Rtn ptr to fmt'd str (see Note #6e).                 */
}
#endif


/*$PAGE*/
/*
*********************************************************************************************************
*                                        Str_ParseNbr_Int32U()
*
* Description : Parse 32-bit unsigned integer from string.
*
* Argument(s) : pstr        Pointer to string (see Notes #1 & #2a).
*
*               pstr_next   Optional pointer to a variable to ... :
*
*                               (a) Return a pointer to first character following the integer string,
*                                       if NO error(s) [see Note #2a2B2];
*                               (b) Return a pointer to 'pstr',
*                                       otherwise      (see Note #2a2A2).
*
*               nbr_base    Base of number to parse (see Notes #2a1B1 & #2a2B1).
*
* Return(s)   : Parsed integer,      if integer parsed with NO overflow   (see Note #2a3A).
*
*               DEF_INT_32U_MAX_VAL, if integer parsed but     overflowed (see Note #2a3A1).
*
*               0,                   otherwise                            (see Note #2a3B).
*
* Caller(s)   : Application.
*
* Note(s)     : (1) String buffer NOT modified.
*
*               (2) (a) IEEE Std 1003.1, 2004 Edition, Section 'strtoul() : DESCRIPTION' states that "these
*                       functions shall convert the initial portion of the string pointed to by 'str' ('pstr') 
*                       to a type unsigned long ... representation" :
*
*                       (1) "First, they decompose the input string into three parts" :
*
*                           (A) "An initial, possibly empty, sequence of white-space characters [as specified
*                                by isspace()]."
*
*                               (1) "The subject sequence is defined as the longest initial subsequence of the
*                                    input string, starting with the first non-white-space character that is of
*                                    the expected form.  The subject sequence shall contain no characters if the
*                                    input string is empty or consists entirely of white-space characters."
*
*                           (B) (1) "A subject sequence interpreted as an integer represented in some radix
*                                    determined by the value of 'base' ('nbr_base')" :
*
*                                   (a) "If the value of 'base' ('nbr_base') is 0, the expected form of the 
*                                        subject sequence is that of a decimal constant, octal constant, or 
*                                        hexadecimal constant" :
*
*                                       (1) "A decimal constant begins with a non-zero digit, and consists of a
*                                            sequence of decimal digits."
*
*                                       (2) "An octal constant consists of the prefix '0' optionally followed by
*                                            a sequence of the digits '0' to '7' only."
*
*                                       (3) "A hexadecimal constant consists of the prefix '0x' or '0X' followed
*                                            by a sequence of the decimal digits and letters 'a' (or 'A') to 'f'
*                                            (or 'F') with values 10 to 15 respectively."
*
*                                   (b) "If the value of 'base' ('nbr_base') is between 2 and 36, the expected form 
*                                        of the subject sequence is a sequence of letters and digits representing 
*                                        an integer with the radix specified by 'base' ('nbr_base')" :
*
*                                       (1) (A) "The letters from 'a' (or 'A') to 'z' (or 'Z') inclusive are
*                                                ascribed the values 10 to 35"; ...
*                                           (B) "only letters whose ascribed values are less than that of base
*                                                are permitted."
*
*                                       (2) (A) "If the value of 'base' ('nbr_base') is 16, the characters '0x' or 
*                                                '0X' may optionally precede the sequence of letters and digits."
*
*                                           (B) Although NO specification states that "if the value of 'base' 
*                                               ('nbr_base') is" 8, the '0' character "may optionally precede 
*                                               the sequence of letters and digits"; it seems reasonable to 
*                                               allow the '0' character to be optionally parsed.
*
*                               (2) "A subject sequence .... may be preceded by a '+' or '-' sign."
*
*                                   (a) However, it does NOT seem reasonable to parse & convert a negative number
*                                       integer string into an unsigned integer.
*
*                           (C) (1) (a) "A final string of one or more unrecognized characters,"  ...
*                                   (b) "including the terminating null byte of the input string" ...
*                               (2) "other than a sign or a permissible letter or digit."
*$PAGE*
*                       (2) Second, "they shall attempt to convert the subject sequence to an unsigned integer" :
*
*                           (A) "If the subject sequence is empty or does not have the expected form" :
*
*                               (1) "no conversion [is] performed"; ...
*                               (2) "the value of 'str' ('pstr') [is] stored in the object pointed to by 'endptr' 
*                                    ('pstr_next'), provided that 'endptr' ('pstr_next') is not a null pointer."
*
*                           (B) "If the subject sequence has the expected form" :
*
*                               (1) (a) "and the value of 'base' ('nbr_base') is 0, the sequence of characters 
*                                        starting with the first digit shall be interpreted as an integer constant."
*
*                                   (b) "and the value of 'base' ('nbr_base') is between 2 and 36, it shall be 
*                                        used as the base for conversion, ascribing to each letter its value as 
*                                        given above" (see Note #2a1B1b1A).
*
*                               (2) "A pointer to the final string shall be stored in the object pointed to by
*                                   'endptr' ('pstr_next'), provided that 'endptr' ('pstr_next') is not a null 
*                                   pointer."
*
*                       (3) Lastly, IEEE Std 1003.1, 2004 Edition, Section 'strtoul() : RETURN VALUE' states that :
*
*                           (A) "Upon successful completion, these functions shall return the converted value."
*                               (1) "If the correct value is outside the range of representable values, {ULONG_MAX}
*                                    ... shall be returned."
*
*                           (B) "If no conversion could be performed, 0 shall be returned."
*
*                   (b) (1) IEEE Std 1003.1, 2004 Edition, Section 'strtoul() : ERRORS' states that "these functions
*                           shall fail if" :
*
*                           (A) "[EINVAL] - The value of 'base' ('nbr_base') is not supported."
*
*                           (B) "[ERANGE] - The value to be returned is not representable."
*
*                       (2) IEEE Std 1003.1, 2004 Edition, Section 'strtoul() : ERRORS' states that "these functions
*                           may fail if" :
*
*                           (A) "[EINVAL] - No conversion could be performed."
*
*               (3) Return integer value & next string pointer should be used to diagnose parse success or failure :
*
*                   (a) Valid parse string integer :
*
*                           pstr      = "     ABCDE xyz"
*                           nbr_base  = 16
*
*                           nbr       = 703710
*                           pstr_next = " xyz"
*
*
*                   (b) Invalid parse string integer :
*
*                           pstr      = "     ABCDE"
*                           nbr_base  = 10
*
*                           nbr       =  0
*                           pstr_next = pstr = "     ABCDE"
*
*
*                   (c) Valid hexadecimal parse string integer :
*
*                           pstr      = "     0xGABCDE"
*                           nbr_base  = 16
*
*                           nbr       =  0
*                           pstr_next = "xGABCDE"
*
*
*                   (d) Valid decimal parse string integer ('0x' prefix ignored
*                               following invalid hexadecimal characters) :
*
*                           pstr      = "     0xGABCDE"
*                           nbr_base  =  0
*
*                           nbr       =  0
*                           pstr_next = "xGABCDE"
*
*
*                   (e) Valid decimal parse string integer ('0'  prefix ignored
*                               following invalid octal       characters) :
*
*                           pstr      = "     0GABCDE"
*                           nbr_base  =  0
*
*                           nbr       =  0
*                           pstr_next = "GABCDE"
*
*$PAGE*
*                   (f) Parse string integer overflow :
*
*                           pstr      = "   12345678901234567890*123456"
*                           nbr_base  = 10
*
*                           nbr       = DEF_INT_32U_MAX_VAL
*                           pstr_next = "*123456"
*
*
*                   (g) Invalid negative unsigned parse string :
*
*                           pstr      = "  -12345678901234567890*123456"
*                           nbr_base  = 10
*
*                           nbr       = 0
*                           pstr_next = pstr = "  -12345678901234567890*123456"
*
*********************************************************************************************************
*/

CPU_INT32U  Str_ParseNbr_Int32U (const  CPU_CHAR     *pstr,
                                        CPU_CHAR    **pstr_next,
                                        CPU_INT08U    nbr_base)
{
    CPU_INT32U  nbr;


    nbr = Str_ParseNbr_Int32(               pstr,               /* Parse/convert str ...                                */
                                            pstr_next,
                                            nbr_base,
                                            DEF_NO,             /* ... as unsigned int (see Note #2a2).                 */
                             (CPU_BOOLEAN *)0);

    return (nbr);
}


/*$PAGE*/
/*
*********************************************************************************************************
*                                        Str_ParseNbr_Int32S()
*
* Description : Parse 32-bit signed integer from string.
*
* Argument(s) : pstr        Pointer to string (see Notes #1 & #2a).
*
*               pstr_next   Optional pointer to a variable to ... :
*
*                               (a) Return a pointer to first character following the integer string,
*                                       if NO error(s) [see Note #2a2B2];
*                               (b) Return a pointer to 'pstr',
*                                       otherwise      (see Note #2a2A2).
*
*               nbr_base    Base of number to parse (see Notes #2a1B1 & #2a2B1).
*
* Return(s)   : Parsed integer,      if integer parsed with NO over- or underflow (see Note #2a3A).
*
*               DEF_INT_32S_MIN_VAL, if integer parsed but negatively underflowed (see Note #2a3A1a).
*
*               DEF_INT_32U_MAX_VAL, if integer parsed but positively overflowed  (see Note #2a3A1b).
*
*               0,                   otherwise                                    (see Note #2a3B).
*
* Caller(s)   : Application.
*
* Note(s)     : (1) String buffer NOT modified.
*
*               (2) (a) IEEE Std 1003.1, 2004 Edition, Section 'strtol() : DESCRIPTION' states that "these
*                       functions shall convert the initial portion of the string pointed to by 'str' ('pstr') 
*                       to a type long ... representation" :
*
*                       (1) "First, they decompose the input string into three parts" :
*
*                           (A) "An initial, possibly empty, sequence of white-space characters [as specified
*                                by isspace()]."
*
*                               (1) "The subject sequence is defined as the longest initial subsequence of the
*                                    input string, starting with the first non-white-space character that is of
*                                    the expected form.  The subject sequence shall contain no characters if the
*                                    input string is empty or consists entirely of white-space characters."
*
*                           (B) (1) "A subject sequence interpreted as an integer represented in some radix
*                                    determined by the value of 'base' ('nbr_base')" :
*
*                                   (a) "If the value of 'base' ('nbr_base') is 0, the expected form of the 
*                                        subject sequence is that of a decimal constant, octal constant, or 
*                                        hexadecimal constant" :
*
*                                       (1) "A decimal constant begins with a non-zero digit, and consists of a
*                                            sequence of decimal digits."
*
*                                       (2) "An octal constant consists of the prefix '0' optionally followed by
*                                            a sequence of the digits '0' to '7' only."
*
*                                       (3) "A hexadecimal constant consists of the prefix '0x' or '0X' followed
*                                            by a sequence of the decimal digits and letters 'a' (or 'A') to 'f'
*                                            (or 'F') with values 10 to 15 respectively."
*
*                                   (b) "If the value of 'base' ('nbr_base') is between 2 and 36, the expected form 
*                                        of the subject sequence is a sequence of letters and digits representing 
*                                        an integer with the radix specified by 'base' ('nbr_base')" :
*
*                                       (1) (A) "The letters from 'a' (or 'A') to 'z' (or 'Z') inclusive are
*                                                ascribed the values 10 to 35"; ...
*                                           (B) "only letters whose ascribed values are less than that of base
*                                                are permitted."
*
*                                       (2) (A) "If the value of 'base' ('nbr_base') is 16, the characters '0x' or 
*                                                '0X' may optionally precede the sequence of letters and digits."
*
*                                           (B) Although NO specification states that "if the value of 'base' 
*                                               ('nbr_base') is" 8, the '0' character "may optionally precede 
*                                               the sequence of letters and digits"; it seems reasonable to 
*                                               allow the '0' character to be optionally parsed.
*
*                               (2) "A subject sequence .... may be preceded by a '+' or '-' sign."
*
*                                   (a) However, it does NOT seem reasonable to parse & convert a negative number
*                                       integer string into an unsigned integer.
*
*                           (C) (1) (a) "A final string of one or more unrecognized characters,"  ...
*                                   (b) "including the terminating null byte of the input string" ...
*                               (2) "other than a sign or a permissible letter or digit."
*$PAGE*
*                       (2) Second, "they shall attempt to convert the subject sequence to an integer" :
*
*                           (A) "If the subject sequence is empty or does not have the expected form" :
*
*                               (1) "no conversion is performed"; ...
*                               (2) "the value of 'str' ('pstr') is stored in the object pointed to by 'endptr' 
*                                    ('pstr_next'), provided that 'endptr' ('pstr_next') is not a null pointer."
*
*                           (B) "If the subject sequence has the expected form" :
*
*                               (1) (a) "and the value of 'base' ('nbr_base') is 0, the sequence of characters 
*                                        starting with the first digit shall be interpreted as an integer constant."
*
*                                   (b) "and the value of 'base' ('nbr_base') is between 2 and 36, it shall be 
*                                        used as the base for conversion, ascribing to each letter its value as 
*                                        given above" (see Note #2a1B1b1A).
*
*                               (2) "A pointer to the final string shall be stored in the object pointed to by
*                                   'endptr' ('pstr_next'), provided that 'endptr' ('pstr_next') is not a null 
*                                   pointer."
*
*                       (3) Lastly, IEEE Std 1003.1, 2004 Edition, Section 'strtol() : RETURN VALUE' states that :
*
*                           (A) "Upon successful completion, these functions shall return the converted value."
*
*                               (1) "If the correct value is outside the range of representable values", either
*                                    of the following "shall be returned" :
*                                   (a) "{LONG_MIN}" or ...
*                                   (b) "{LONG_MAX}"
*
*                           (B) "If no conversion could be performed, 0 shall be returned."
*
*                   (b) (1) IEEE Std 1003.1, 2004 Edition, Section 'strtoul() : ERRORS' states that "these functions
*                           shall fail if" :
*
*                           (A) "[EINVAL] - The value of 'base' ('nbr_base') is not supported."
*
*                           (B) "[ERANGE] - The value to be returned is not representable."
*
*                       (2) IEEE Std 1003.1, 2004 Edition, Section 'strtoul() : ERRORS' states that "these functions
*                           may fail if" :
*
*                           (A) "[EINVAL] - No conversion could be performed."
*
*               (3) Return integer value & next string pointer should be used to diagnose parse success or failure :
*
*                   (a) Valid parse string integer :
*
*                           pstr      = "     ABCDE xyz"
*                           nbr_base  = 16
*
*                           nbr       = 703710
*                           pstr_next = " xyz"
*
*
*                   (b) Invalid parse string integer :
*
*                           pstr      = "     ABCDE"
*                           nbr_base  = 10
*
*                           nbr       =  0
*                           pstr_next = pstr = "     ABCDE"
*
*
*                   (c) Valid hexadecimal parse string integer :
*
*                           pstr      = "     0xGABCDE"
*                           nbr_base  = 16
*
*                           nbr       =  0
*                           pstr_next = "xGABCDE"
*
*
*                   (d) Valid decimal parse string integer ('0x' prefix ignored
*                               following invalid hexadecimal characters) :
*
*                           pstr      = "     0xGABCDE"
*                           nbr_base  =  0
*
*                           nbr       =  0
*                           pstr_next = "xGABCDE"
*
*
*                   (e) Valid decimal parse string integer ('0'  prefix ignored
*                               following invalid octal       characters) :
*
*                           pstr      = "     0GABCDE"
*                           nbr_base  =  0
*
*                           nbr       =  0
*                           pstr_next = "GABCDE"
*
*$PAGE*
*                   (f) Parse string integer overflow :
*
*                           pstr      = "   12345678901234567890*123456"
*                           nbr_base  = 10
*
*                           nbr       = DEF_INT_32S_MAX_VAL
*                           pstr_next = "*123456"
*
*
*                   (g) Parse string integer underflow :
*
*                           pstr      = "  -12345678901234567890*123456"
*                           nbr_base  = 10
*
*                           nbr       = DEF_INT_32S_MIN_VAL
*                           pstr_next = "*123456"
*
*********************************************************************************************************
*/

CPU_INT32S  Str_ParseNbr_Int32S (const  CPU_CHAR     *pstr,
                                        CPU_CHAR    **pstr_next,
                                        CPU_INT08U    nbr_base)
{
    CPU_INT32S   nbr;
    CPU_INT32U   nbr_abs;
    CPU_BOOLEAN  nbr_neg;


    nbr_abs = Str_ParseNbr_Int32(pstr,                          /* Parse/convert str ...                                */
                                 pstr_next,
                                 nbr_base,
                                 DEF_YES,                       /* ... as signed int (see Note #2a2).                   */
                                &nbr_neg);

    if (nbr_neg == DEF_NO) {                                    /* Chk for neg nbr & ovf/undf (see Note #2a3A1).        */
        nbr = (nbr_abs > (CPU_INT32U) DEF_INT_32S_MAX_VAL)          ?  (CPU_INT32S)DEF_INT_32S_MAX_VAL
                                                                    :  (CPU_INT32S)nbr_abs;
    } else {
        nbr = (nbr_abs > (CPU_INT32U)-DEF_INT_32S_MIN_VAL_ONES_CPL) ?  (CPU_INT32S)DEF_INT_32S_MIN_VAL
                                                                    : -(CPU_INT32S)nbr_abs;
    }

    return (nbr);
}


/*$PAGE*/
/*
*********************************************************************************************************
*********************************************************************************************************
*                                           LOCAL FUNCTIONS
*********************************************************************************************************
*********************************************************************************************************
*/

/*
*********************************************************************************************************
*                                         Str_FmtNbr_Int32()
*
* Description : Format 32-bit integer into a multi-digit character string.
*
* Argument(s) : nbr             Number           to format.
*
*               nbr_dig         Number of digits to format (see Note #1).
*
*               nbr_base        Base   of number to format (see Note #2).
*
*               nbr_neg         Indicates whether number to format is negative :
*               -------
*                                   DEF_NO          Number is non-negative.
*                                   DEF_YES         Number is     negative.
*
*                               Argument validated in Str_FmtNbr_Int32U(),
*                                                     Str_FmtNbr_Int32S().
*
*               lead_char       Prepend leading character  (see Note #3) :
*
*                                   '\0'                    Do NOT prepend leading character to string.
*                                     Printable character          Prepend leading character to string.
*                                   Unprintable character   Format invalid string (see Note #6e).
*
*               lower_case      Format alphabetic characters (if any) in lower case :
*
*                                   DEF_NO          Format alphabetic characters in upper case.
*                                   DEF_YES         Format alphabetic characters in lower case.
*
*               nul             Append terminating NULL-character (see Note #4) :
*
*                                   DEF_NO          Do NOT append terminating NULL-character to string.
*                                   DEF_YES                Append terminating NULL-character to string.
*
*               pstr            Pointer to character array to return formatted number string (see Note #5).
*
* Return(s)   : Pointer to formatted string, if NO error(s) [see Note #6f].
*
*               Pointer to NULL,             otherwise.
*
* Caller(s)   : Str_FmtNbr_Int32U(),
*               Str_FmtNbr_Int32S().
*$PAGE*
* Note(s)     : (1) (a) The maximum number of digits to format for 32-bit integer numbers :
*
*
*                               Maximum Number of             [  log (Number)      ]
*                             32-bit Integer Digits  =  floor [ -------------- + 1 ]
*                                   to Format                 [   log (Base)       ]
*
*                               where
*                                       Number                  Number to format
*                                       Base            Base of number to format
*
*                   (b) (1) If the number of digits to format ('nbr_dig') is zero; then NO formatting 
*                           is performed except possible NULL-termination of the string (see Note #4).
*
*                               Example :
*
*                                   nbr      = -23456
*                                   nbr_dig  =  0
*                                   nbr_base = 10
*
*                                   pstr     = ""                   See Note #7a
*
*                       (2) If the number of digits to format ('nbr_dig') is less than the number of 
*                           significant integer digits of the number to format ('nbr'); then an invalid 
*                           string is formatted instead of truncating any significant integer digits.
*
*                               Example :
*
*                                   nbr      = 23456
*                                   nbr_dig  = 3
*                                   nbr_base = 10
*
*                                   pstr     = "???"                See Note #7b
*
*                       (3) If the number to format ('nbr') is negative but the number of digits to format 
*                           ('nbr_dig') is equal to the number of significant integer digits of the number 
*                           to format ('nbr'); then an invalid string is formatted instead of truncating 
*                           the negative sign.
*
*                               Example :
*
*                                   nbr      = -23456
*                                   nbr_dig  =  5
*                                   nbr_base = 10
*
*                                   pstr     = "?????"              See Note #7b
*
*               (2) The number's base MUST be between 2 & 36, inclusive.
*$PAGE*
*               (3) Leading character option prepends leading characters prior to the first non-zero digit.
*
*                   (a) (1) Leading character MUST be a printable ASCII character.
*
*                       (2) (A) Leading character MUST NOT be a number base digit, ...
*                           (B) with the exception of '0'.
*
*                   (b) (1) The number of leading characters is such that the total number of significant 
*                           integer digits plus the number of leading characters plus possible negative 
*                           sign character is equal to the requested number of integer digits to format 
*                           ('nbr_dig').
*
*                               Examples :
*
*                                   nbr       = 23456
*                                   nbr_dig   = 7
*                                   nbr_base  = 10
*                                   lead_char = ' '
*
*                                   pstr      = "  23456"
*
*
*                                   nbr       = -23456
*                                   nbr_dig   = 7
*                                   nbr_base  = 10
*                                   lead_char = ' '
*
*                                   pstr      = " -23456"
*
*                       (2) (A) If the number to format ('nbr') is negative AND the leading character 
*                               ('lead_char') is     a '0' digit; then the negative sign character 
*                               prefixes all leading characters prior to the formatted number.
*
*                                   Examples :
*
*                                       nbr        = -23456
*                                       nbr_dig    =  8
*                                       nbr_base   = 10
*                                       lead_char  = '0'
*
*                                       pstr       = "-0023456"
*
*
*                                       nbr        = -43981
*                                       nbr_dig    =  8
*                                       nbr_base   = 16
*                                       lead_char  = '0'
*                                       lower_case = DEF_NO
*
*                                       pstr       = "-000ABCD"
*
*                           (B) If the number to format ('nbr') is negative AND the leading character 
*                               ('lead_char') is NOT a '0' digit; then the negative sign character 
*                               immediately prefixes the most significant digit of the formatted number.
*
*                                   Examples :
*
*                                       nbr        = -23456
*                                       nbr_dig    =  8
*                                       nbr_base   = 10
*                                       lead_char  = '#'
*
*                                       pstr       = "##-23456"
*
*
*                                       nbr        = -43981
*                                       nbr_dig    =  8
*                                       nbr_base   = 16
*                                       lead_char  = '#'
*                                       lower_case = DEF_YES
*
*                                       pstr       = "###-abcd"
*
*                   (c) (1) If the value of the number to format is     zero  ...
*                       (2) ... & the number of digits to format is non-zero, ...
*                       (3) ... but NO leading character available;           ...
*                       (4) ... then one digit of '0' value is formatted.
*
*                           This is NOT a leading character; but a single integer digit of '0' value.
*$PAGE*
*               (4) (a) NULL-character terminate option DISABLED prevents overwriting previous character
*                       array formatting.
*
*                   (b) WARNING: Unless 'pstr' character array is pre-/post-terminated, NULL-character
*                       terminate option DISABLED will cause character string run-on.
*
*               (5) (a) Format buffer size NOT validated; buffer overruns MUST be prevented by caller.
*
*                   (b) To prevent character buffer overrun :
*
*                           Character array size MUST be  >=  ('nbr_dig'          +
*                                                               1 negative sign   +
*                                                               1 'NUL' terminator)  characters
*
*               (6) String format terminates when :
*
*                   (a) Format string pointer is passed a NULL pointer.
*                       (1) No      string formatted;                NULL pointer returned.
*
*                   (b) Number of digits to format ('nbr_dig') is zero.
*                       (1) NULL    string formatted (see Note #7a); NULL pointer returned.
*
*                   (c) Number of digits to format ('nbr_dig') is less than number of significant 
*                           integer digits of the number to format ('nbr'), including possible 
*                           negative sign.
*                       (1) Invalid string formatted (see Note #7);  NULL pointer returned.
*
*                   (d) Base is passed an invalid base (see Note #2).
*                       (1) Invalid string format performed; NULL pointer returned.
*
*                   (e) Lead character is NOT a valid, printable character (see Note #3a).
*                       (1) Invalid string formatted (see Note #7);  NULL pointer returned.
*
*                   (f) Number successfully formatted into character string array.
*
*               (7) For any unsuccessful string format or error(s), an invalid string of question marks 
*                   ('?') will be formatted, where the number of question marks is determined by the 
*                   number of digits to format ('nbr_dig') :
*
*                      Invalid string's     {  (a)   0 (NULL string)  ,  if 'nbr_dig' = 0
*                          number of     =  {
*                       question marks      {  (b)  'nbr_dig'         ,  if 'nbr_dig' > 0
*
*********************************************************************************************************
*/

static  CPU_CHAR  *Str_FmtNbr_Int32 (CPU_INT32U    nbr,
                                     CPU_INT08U    nbr_dig,
                                     CPU_INT08U    nbr_base,
                                     CPU_BOOLEAN   nbr_neg,
                                     CPU_CHAR      lead_char,
                                     CPU_BOOLEAN   lower_case,
                                     CPU_BOOLEAN   nul,
                                     CPU_CHAR     *pstr)
{
    CPU_CHAR     *pstr_fmt;
    CPU_DATA      i;
    CPU_INT32U    nbr_fmt;
    CPU_INT32U    nbr_log;
    CPU_INT08U    nbr_dig_max;
    CPU_INT08U    nbr_dig_min;
    CPU_INT08U    nbr_dig_fmtd;
    CPU_INT08U    nbr_neg_sign;
    CPU_INT08U    nbr_lead_char;
    CPU_INT08U    dig_val;
    CPU_INT08U    lead_char_delta_0;
    CPU_INT08U    lead_char_delta_a;
    CPU_BOOLEAN   lead_char_dig;
    CPU_BOOLEAN   lead_char_0;
    CPU_BOOLEAN   fmt_invalid;
    CPU_BOOLEAN   print_char;
    CPU_BOOLEAN   nbr_neg_fmtd;


/*$PAGE*/
                                                                /* ---------------- VALIDATE FMT ARGS ----------------- */
    if (pstr == (CPU_CHAR *)0) {                                /* Rtn NULL if str ptr NULL (see Note #6a).             */
        return ((CPU_CHAR *)0);
    }

    fmt_invalid = DEF_NO;

    if (nbr_dig < 1) {                                          /* If nbr digs = 0, ...                                 */
        fmt_invalid = DEF_YES;                                  /* ... fmt invalid str (see Note #6b).                  */
    }
                                                                /* If invalid base, ...                                 */
    if ((nbr_base <  2u) ||
        (nbr_base > 36u)) {
        fmt_invalid = DEF_YES;                                  /* ... fmt invalid str (see Note #6d).                  */
    }

    if (lead_char != (CPU_CHAR)'\0') {
        print_char =  ASCII_IsPrint(lead_char);
        if (print_char != DEF_YES) {                            /* If lead char non-printable (see Note #3a1), ...      */
            fmt_invalid = DEF_YES;                              /* ... fmt invalid str        (see Note #6e).           */

        } else if (lead_char != '0') {                          /* Chk lead char for non-0 nbr base dig.                */
            lead_char_delta_0 = (CPU_INT08U)(lead_char - '0');
            if (lower_case != DEF_YES) {
                lead_char_delta_a = (CPU_INT08U)(lead_char - 'A');
            } else {
                lead_char_delta_a = (CPU_INT08U)(lead_char - 'a');
            }

            lead_char_dig = (((nbr_base <= 10u) &&  (lead_char_delta_0 <  nbr_base))      ||
                             ((nbr_base >  10u) && ((lead_char_delta_0 <             10u) ||
                                                    (lead_char_delta_a < (nbr_base - 10u))))) ? DEF_YES : DEF_NO;

            if (lead_char_dig == DEF_YES) {                     /* If lead char non-0 nbr base dig (see Note #3a2A), ...*/
                fmt_invalid = DEF_YES;                          /* ... fmt invalid str             (see Note #6e).      */
            }
        }
    }


                                                                /* ----------------- PREPARE NBR FMT ------------------ */
    pstr_fmt = pstr;

    if (fmt_invalid == DEF_NO) {
        nbr_fmt     = nbr;
        nbr_log     = nbr;
        nbr_dig_max = 1u;
        while (nbr_log >= nbr_base) {                           /* While nbr base digs avail, ...                       */
            nbr_dig_max++;                                      /* ... calc max nbr digs.                               */
            nbr_log /= nbr_base;
        }

        nbr_neg_sign = (nbr_neg == DEF_YES) ? 1u : 0u;
        if (nbr_dig >= (nbr_dig_max + nbr_neg_sign)) {          /* If req'd nbr digs >= (max nbr digs + neg sign), ...  */
            nbr_neg_fmtd = DEF_NO;
            nbr_dig_min  = DEF_MIN(nbr_dig_max, nbr_dig);
                                                                /* ... calc nbr digs to fmt & nbr lead chars.           */
            if (lead_char != (CPU_CHAR)'\0') {
                nbr_dig_fmtd  = nbr_dig;
                nbr_lead_char = nbr_dig     -
                                nbr_dig_min - nbr_neg_sign;
            } else {
                nbr_dig_fmtd  = nbr_dig_min + nbr_neg_sign;
                nbr_lead_char = 0u;
            }

            if (nbr_lead_char > 0) {                            /* If lead chars to fmt, ...                            */
                lead_char_0 = (lead_char == '0')                /* ... chk if lead char a '0' dig (see Note #3a2B).     */
                            ?  DEF_YES : DEF_NO;
            } else {
                lead_char_0 =  DEF_NO;
            }

        } else {                                                /* Else if nbr trunc'd, ...                             */
            fmt_invalid = DEF_YES;                              /* ... fmt invalid str (see Note #6c).                  */
        }
    }

    if (fmt_invalid != DEF_NO) {
        nbr_dig_fmtd = nbr_dig;
    }


/*$PAGE*/
                                                                /* ------------------- FMT NBR STR -------------------- */
    pstr_fmt += nbr_dig_fmtd;                                   /* Start fmt @ least-sig dig.                           */

    if (nul != DEF_NO) {                                        /* If NOT DISABLED, append NULL char (see Note #4).     */
       *pstr_fmt = (CPU_CHAR)'\0';
    }
    pstr_fmt--;


    for (i = 0u; i < nbr_dig_fmtd; i++) {                       /* Fmt str for desired nbr digs :                       */
        if (fmt_invalid == DEF_NO) {
            if ((nbr_fmt > 0) ||                                /* If fmt nbr > 0                               ...     */
                (i == 0u)) {                                    /* ... OR on one's  dig to fmt (see Note #3c1), ...     */
                                                                /* ... calc & fmt dig val;                      ...     */
                dig_val = (CPU_INT08U)(nbr_fmt % nbr_base);
                if (dig_val < 10u) {
                   *pstr_fmt-- = (CPU_CHAR)(dig_val + '0');
                } else {
                    if (lower_case !=  DEF_YES) {
                       *pstr_fmt--  = (CPU_CHAR)((dig_val - 10u) + 'A');
                    } else {
                       *pstr_fmt--  = (CPU_CHAR)((dig_val - 10u) + 'a');
                    }
                }

                nbr_fmt /= nbr_base;                            /* Shift to next more-sig dig.                          */

            } else if ((nbr_neg      == DEF_YES)  &&            /* ... else if nbr neg             AND          ...     */
                     (((lead_char_0  == DEF_NO )  &&            /* ... lead char NOT a '0' dig                  ...     */
                       (nbr_neg_fmtd == DEF_NO )) ||            /* ... but neg sign NOT yet fmt'd  OR           ...     */
                      ((lead_char_0  != DEF_NO )  &&            /* ... lead char is  a '0' dig                  ...     */
                       (i == (nbr_dig_fmtd - 1u))))) {          /* ... & on most-sig dig to fmt,                ...     */

               *pstr_fmt--   = '-';                             /* ... prepend neg sign (see Note #3b);         ...     */
                nbr_neg_fmtd = DEF_YES;

            } else if (lead_char != (CPU_CHAR)'\0') {           /* ... else if avail,                           ...     */
               *pstr_fmt-- = lead_char;                         /* ... fmt lead char.                                   */
            }

        } else {                                                /* Else fmt '?' for invalid str (see Note #7).          */
           *pstr_fmt-- = '?';
        }
    }


    if (fmt_invalid != DEF_NO) {                                /* Rtn NULL for invalid str fmt (see Notes #6a - #6e).  */
        return ((CPU_CHAR *)0);
    }


    return (pstr);                                              /* Rtn ptr to fmt'd str (see Note #6f).                 */
}


/*$PAGE*/
/*
*********************************************************************************************************
*                                        Str_ParseNbr_Int32()
*
* Description : Parse 32-bit integer from string.
*
* Argument(s) : pstr            Pointer to string (see Notes #1 & #2a).
*
*               pstr_next       Optional pointer to a variable to ... :
*
*                                   (a) Return a pointer to first character following the integer string,
*                                           if NO error(s) [see Note #2a2B2];
*                                   (b) Return a pointer to 'pstr',
*                                           otherwise      (see Note #2a2A2).
*
*               nbr_base        Base of number to parse (see Notes #2a1B1 & #2a2B1).
*
*               nbr_signed      Indicates whether number to parse is signed :
*
*                                   DEF_NO                  Number is unsigned.
*                                   DEF_YES                 Number is   signed.
*
*               pnbr_neg        Pointer to a variable to return if the parsed (signed) number is negative :
*
*                                   DEF_NO                  Number is non-negative.
*                                   DEF_YES                 Number is     negative.
*
* Return(s)   : Parsed integer,      if integer parsed with NO overflow   (see Note #2a3A).
*
*               DEF_INT_32U_MAX_VAL, if integer parsed but     overflowed (see Note #2a3A1).
*
*               0,                   otherwise                            (see Note #2a3B).
*
* Caller(s)   : Str_ParseNbr_Int32U(),
*               Str_ParseNbr_Int32S().
*
* Note(s)     : (1) String buffer NOT modified.
*
*               (2) (a) IEEE Std 1003.1, 2004 Edition, Section 'strtol() : DESCRIPTION' states that "these
*                       functions shall convert the initial portion of the string pointed to by 'str' ('pstr') 
*                       to a type long ... representation" :
*
*                       (1) "First, they decompose the input string into three parts" :
*
*                           (A) "An initial, possibly empty, sequence of white-space characters [as specified
*                                by isspace()]."
*
*                               (1) "The subject sequence is defined as the longest initial subsequence of the
*                                    input string, starting with the first non-white-space character that is of
*                                    the expected form.  The subject sequence shall contain no characters if the
*                                    input string is empty or consists entirely of white-space characters."
*
*                           (B) (1) "A subject sequence interpreted as an integer represented in some radix
*                                    determined by the value of 'base' ('nbr_base')" :
*
*                                   (a) "If the value of 'base' ('nbr_base') is 0, the expected form of the 
*                                        subject sequence is that of a decimal constant, octal constant, or 
*                                        hexadecimal constant" :
*
*                                       (1) "A decimal constant begins with a non-zero digit, and consists of a
*                                            sequence of decimal digits."
*
*                                       (2) "An octal constant consists of the prefix '0' optionally followed by
*                                            a sequence of the digits '0' to '7' only."
*
*                                       (3) "A hexadecimal constant consists of the prefix '0x' or '0X' followed
*                                            by a sequence of the decimal digits and letters 'a' (or 'A') to 'f'
*                                            (or 'F') with values 10 to 15 respectively."
*
*                                   (b) "If the value of 'base' ('nbr_base') is between 2 and 36, the expected form 
*                                        of the subject sequence is a sequence of letters and digits representing 
*                                        an integer with the radix specified by 'base' ('nbr_base')" :
*
*                                       (1) (A) "The letters from 'a' (or 'A') to 'z' (or 'Z') inclusive are
*                                                ascribed the values 10 to 35"; ...
*                                           (B) "only letters whose ascribed values are less than that of base
*                                                are permitted."
*
*                                       (2) (A) "If the value of 'base' ('nbr_base') is 16, the characters '0x' or 
*                                               '0X' may optionally precede the sequence of letters and digits."
*
*                                           (B) Although NO specification states that "if the value of 'base' 
*                                               ('nbr_base') is" 8, the '0' character "may optionally precede 
*                                               the sequence of letters and digits"; it seems reasonable to 
*                                               allow the '0' character to be optionally parsed.
*$PAGE*
*                               (2) "A subject sequence .... may be preceded by a '+' or '-' sign."
*
*                                   (a) It does NOT seem reasonable to parse & convert a negative number
*                                       integer string into an unsigned integer.  However, a negative sign
*                                       for an unsigned integer will automatically be parsed as an invalid
*                                       character (see Note #2aC1).
*
*                           (C) (1) (a) "A final string of one or more unrecognized characters,"  ...
*                                   (b) "including the terminating null byte of the input string" ...
*                               (2) "other than a sign or a permissible letter or digit."
*
*                       (2) Second, "they shall attempt to convert the subject sequence to an integer" :
*
*                           (A) "If the subject sequence is empty or does not have the expected form" :
*
*                               (1) "no conversion is performed"; ...
*                               (2) "the value of 'str' ('pstr') is stored in the object pointed to by 'endptr' 
*                                    ('pstr_next'), provided that 'endptr' ('pstr_next') is not a null pointer."
*
*                           (B) "If the subject sequence has the expected form" :
*
*                               (1) (a) "and the value of 'base' ('nbr_base') is 0, the sequence of characters 
*                                        starting with the first digit shall be interpreted as an integer constant."
*
*                                   (b) "and the value of 'base' ('nbr_base') is between 2 and 36, it shall be 
*                                        used as the base for conversion, ascribing to each letter its value as 
*                                        given above" (see Note #2a1B1b1A).
*
*                               (2) "A pointer to the final string shall be stored in the object pointed to by
*                                   'endptr' ('pstr_next'), provided that 'endptr' ('pstr_next') is not a null 
*                                   pointer."
*
*                       (3) Lastly, IEEE Std 1003.1, 2004 Edition, Section 'strtol() : RETURN VALUE' states that :
*
*                           (A) "Upon successful completion, these functions shall return the converted value."
*                               (1) "If the correct value is outside the range of representable values, {LONG_MIN}
*                                    [or] {LONG_MAX} ... shall be returned."
*
*                           (B) "If no conversion could be performed, 0 shall be returned."
*
*                   (b) (1) IEEE Std 1003.1, 2004 Edition, Section 'strtoul() : ERRORS' states that "these functions
*                           shall fail if" :
*
*                           (A) "[EINVAL] - The value of 'base' ('nbr_base') is not supported."
*
*                           (B) "[ERANGE] - The value to be returned is not representable."
*
*                       (2) IEEE Std 1003.1, 2004 Edition, Section 'strtoul() : ERRORS' states that "these functions
*                           may fail if" :
*
*                           (A) "[EINVAL] - No conversion could be performed."
*$PAGE*
*               (3) Return integer value & next string pointer should be used to diagnose parse success or failure :
*
*                   (a) Valid parse string integer :
*
*                           pstr      = "     ABCDE xyz"
*                           nbr_base  = 16
*
*                           nbr       = 703710
*                           pstr_next = " xyz"
*
*
*                   (b) Invalid parse string integer :
*
*                           pstr      = "     ABCDE"
*                           nbr_base  = 10
*
*                           nbr       =  0
*                           pstr_next = pstr = "     ABCDE"
*
*
*                   (c) Valid hexadecimal parse string integer :
*
*                           pstr      = "     0xGABCDE"
*                           nbr_base  = 16
*
*                           nbr       =  0
*                           pstr_next = "xGABCDE"
*
*
*                   (d) Valid decimal parse string integer ('0x' prefix ignored
*                               following invalid hexadecimal characters) :
*
*                           pstr      = "     0xGABCDE"
*                           nbr_base  =  0
*
*                           nbr       =  0
*                           pstr_next = "xGABCDE"
*
*
*                   (e) Valid decimal parse string integer ('0'  prefix ignored
*                               following invalid octal       characters) :
*
*                           pstr      = "     0GABCDE"
*                           nbr_base  =  0
*
*                           nbr       =  0
*                           pstr_next = "GABCDE"
*
*
*                   (f) Parse string integer overflow :
*
*                           pstr      = "   12345678901234567890*123456"
*                           nbr_base  = 10
*
*                           nbr       = DEF_INT_32U_MAX_VAL
*                           pstr_next = "*123456"
*
*
*                   (g) Parse string integer underflow :
*
*                           pstr      = "  -12345678901234567890*123456"
*                           nbr_base  = 10
*
*                           nbr       = DEF_INT_32S_MIN_VAL
*                           pstr_next = "*123456"
*
*
*               (4) String parse terminates when :
*
*                   (a) Base passed an invalid base (see Note #2a1B1b).
*                       (1) No conversion performed; 0 returned.
*
*                   (b) (1) Parse string passed a NULL pointer OR empty integer sequence (see Note #2a2A).
*                           (A) No conversion performed; 0 returned.
*
*                       (2) Invalid parse string character found (see Note #2a1C).
*                           (A) Parsed integer returned.
*                           (B) 'pstr_next' points to invalid character.
*
*                       (3) Entire  parse string converted (see Note #2a2B).
*                           (A) Parsed integer returned.
*                           (B) 'pstr_next' points to terminating NULL character.
*
*               (5) Pointers to variables that return values MUST be initialized PRIOR to all other
*                   validation or function handling in case of any error(s).
*********************************************************************************************************
*/
/*$PAGE*/
static  CPU_INT32U  Str_ParseNbr_Int32 (const  CPU_CHAR      *pstr,
                                               CPU_CHAR     **pstr_next,
                                               CPU_INT08U     nbr_base,
                                               CPU_BOOLEAN    nbr_signed,
                                               CPU_BOOLEAN   *pnbr_neg)
{
    const  CPU_CHAR     *pstr_parse;
    const  CPU_CHAR     *pstr_parse_nbr;
           CPU_CHAR     *pstr_parse_unused;
           CPU_CHAR      parse_char;
           CPU_INT08U    parse_dig;
           CPU_INT32U    nbr;
           CPU_BOOLEAN   nbr_neg_unused;
           CPU_BOOLEAN   nbr_dig;
           CPU_BOOLEAN   nbr_alpha;
           CPU_BOOLEAN   nbr_hex;
           CPU_BOOLEAN   nbr_hex_lower;
           CPU_BOOLEAN   whitespace;
           CPU_BOOLEAN   neg;
           CPU_BOOLEAN   ovf;
           CPU_BOOLEAN   done;

                                                                /* --------------- VALIDATE PARSE ARGS ---------------- */
    if (pstr_next == (CPU_CHAR **) 0) {                         /* If NOT avail, ...                                    */
        pstr_next  = (CPU_CHAR **)&pstr_parse_unused;           /* ... re-cfg NULL rtn ptr to unused local var.         */
       (void)&pstr_parse_unused;                                /* Prevent possible 'variable unused' warning.          */
    }
   *pstr_next = (CPU_CHAR *)pstr;                               /* Init rtn str for err (see Note #5).                  */

    if (pnbr_neg == (CPU_BOOLEAN *) 0) {                        /* If NOT avail, ...                                    */
        pnbr_neg  = (CPU_BOOLEAN *)&nbr_neg_unused;             /* ... re-cfg NULL rtn ptr to unused local var.         */
       (void)&nbr_neg_unused;                                   /* Prevent possible 'variable unused' warning.          */
    }
   *pnbr_neg = DEF_NO;                                          /* Init nbr neg for err (see Note #5).                  */


    if (pstr == (CPU_CHAR *)0) {                                /* Rtn zero if str ptr NULL (see Note #4b1).            */
        return (0u);
    }
                                                                /* Rtn zero if invalid base (see Note #4a).             */
    if ((nbr_base == 1u) ||
        (nbr_base > 36u)) {
        return (0u);
    }


                                                                /* ------------- IGNORE PRECEDING CHAR(S) ------------- */
    pstr_parse = pstr;                                          /* Save ptr to init'l str for err (see Note #2a2A2).    */

    whitespace = ASCII_IsSpace(*pstr_parse);
    while (whitespace == DEF_YES) {                             /* Ignore initial white-space char(s) [see Note #2a1A]. */
        pstr_parse++;
        whitespace = ASCII_IsSpace(*pstr_parse);
    }

    switch (*pstr_parse) {
        case '+':                                               /* Ignore   pos sign (see Note #2a1B2).                 */
             pstr_parse++;
             neg = DEF_NO;
             break;


        case '-':                                               /* Validate neg sign (see Note #2a1B2a).                */
             if (nbr_signed == DEF_YES) {
                 pstr_parse++;
             }
             neg = DEF_YES;
             break;


        default:
             neg = DEF_NO;
             break;
    }


/*$PAGE*/
                                                                /* --------- IGNORE NBR BASE PRECEDING CHAR(S) -------- */
    pstr_parse_nbr = pstr_parse;                                /* Save ptr to str's nbr (see Note #2a1A1).             */

    switch (nbr_base) {
        case  0u:                                               /* Determine unspecified nbr base (see Notes #2a1B1a).  */
             if (*pstr_parse == '0') {                          /* If avail, ...                                        */
                  pstr_parse++;                                 /* ... adv past '0'  prefix (see Note #2a1B1b2).        */
                  switch (*pstr_parse) {
                      case 'x':                                 /* For '0x' prefix, ...                                 */
                      case 'X':
                           nbr_base   = 16u;                    /* ... set nbr base = 16    (see Note #2a1B1a3).        */
                           parse_char = (CPU_CHAR)(*(pstr_parse + 1));
                           nbr_hex    =  ASCII_IsDigHex(parse_char);
                           if (nbr_hex == DEF_YES) {            /* If next char is valid hex dig, ...                   */
                               pstr_parse++;                    /* ... adv past '0x' prefix (see Note #2a1B1b2A).       */
                           }
                           break;


                      default:                                  /* For '0'  prefix, ...                                 */
                           nbr_base =  8u;                      /* ... set nbr base =  8    (see Note #2a1B1a2).        */
                           break;
                  }

             } else {                                           /* For non-'0' prefix, ...                              */
                 nbr_base = 10u;                                /* ... set nbr base = 10    (see Note #2a1B1a1).        */
             }
             break;


        case  8u:                                               /* See Note #2a1B1a2.                                   */
             if (*pstr_parse == '0') {                          /* If avail, ...                                        */
                  pstr_parse++;                                 /* ... adv past '0'  prefix (see Note #2a1B1b2B).       */
             }
             break;


        case 16u:                                               /* See Note #2a1B1a3.                                   */
             if (*pstr_parse == '0') {                          /* If avail, ...                                        */
                  pstr_parse++;                                 /* ... adv past '0'  prefix (see Note #2a1B1b2).        */
                  switch (*pstr_parse) {
                      case 'x':
                      case 'X':
                           parse_char = (CPU_CHAR)(*(pstr_parse + 1));
                           nbr_hex    =  ASCII_IsDigHex(parse_char);
                           if (nbr_hex == DEF_YES) {            /* If next char is valid hex dig, ...                   */
                               pstr_parse++;                    /* ... adv past '0x' prefix (see Note #2a1B1b2A).       */
                           }
                           break;


                      default:
                           break;
                  }
             }
             break;


        default:                                                /* See Note #2a1B1b.                                    */
             break;
    }


/*$PAGE*/
                                                                /* ------------------ PARSE INT STR ------------------- */
    nbr  = 0u;
    ovf  = DEF_NO;
    done = DEF_NO;

    while (done == DEF_NO) {                                    /* Parse str for desired nbr base digs (see Note #2a2). */
        parse_char = (CPU_CHAR)*pstr_parse;
        nbr_alpha  =  ASCII_IsAlphaNum(parse_char);
        if (nbr_alpha == DEF_YES) {                             /* If valid alpha num nbr dig avail, ...                */
                                                                /* ... convert parse char into nbr dig.                 */
            nbr_dig = ASCII_IsDig(parse_char);
            if (nbr_dig == DEF_YES) {
                parse_dig = (CPU_INT08U)(parse_char - '0');
            } else {
                nbr_hex_lower = ASCII_IsLower(parse_char);
                if (nbr_hex_lower == DEF_YES) {
                    parse_dig = (CPU_INT08U)((parse_char - 'a') + 10u);
                } else {
                    parse_dig = (CPU_INT08U)((parse_char - 'A') + 10u);
                }
            }

            if (parse_dig < nbr_base) {                         /* If parse char valid for nbr base ...                 */
                if (ovf == DEF_NO) {                            /* ... & nbr NOT yet ovf'd,         ...                 */
                    if (nbr <= Str_MultOvfThTbl_Int32U[nbr_base]) {
                                                                /* ... merge parse char dig into nbr.                   */
                        nbr *= nbr_base;
                        nbr += parse_dig;
                        if (nbr < parse_dig) {
                            ovf = DEF_YES;
                        }
                    } else {
                        ovf = DEF_YES;
                    }
                }
                pstr_parse++;

            } else {                                            /* Invalid         char parsed (see Note #2a1C1a).      */
                done = DEF_YES;
            }

        } else {                                                /* Invalid OR NULL char parsed (see Note #2a1C1).       */
            done = DEF_YES;
        }
    }

    if (ovf == DEF_YES) {                                       /* If nbr ovf'd, ...                                    */
        nbr  = DEF_INT_32U_MAX_VAL;                             /* ... rtn max int val (see Note #2a3A1).               */
    }


    if (pstr_parse !=             pstr_parse_nbr) {             /* If final parse str != init'l parse nbr str,       .. */
       *pstr_next   = (CPU_CHAR *)pstr_parse;                   /* .. rtn   parse str's next char (see Note #2a2B2); .. */
    } else {
       *pstr_next   = (CPU_CHAR *)pstr;                         /* .. else rtn initial parse str  (see Note #2a2A2).    */
    }

   *pnbr_neg = neg;                                             /* Rtn neg nbr status.                                  */


    return (nbr);
}