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| Source at commit 1129 created 12 years 11 months ago. By meklort, Change options.o so that it reloads the system config as well. Also change it so that it uses that config for variables (NOTE: if the calue exists in chameleonConfig, it's used instead. | |
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| 1 | /*␊ |
| 2 | * strntoumax.c␊ |
| 3 | *␊ |
| 4 | * The strntoumax() function and associated␊ |
| 5 | */␊ |
| 6 | #include "libsaio.h"␊ |
| 7 | ␊ |
| 8 | static inline int digitval(int ch)␊ |
| 9 | {␊ |
| 10 | ␉if (ch >= '0' && ch <= '9') {␊ |
| 11 | ␉␉return ch - '0';␊ |
| 12 | ␉} else if (ch >= 'A' && ch <= 'Z') {␊ |
| 13 | ␉␉return ch - 'A' + 10;␊ |
| 14 | ␉} else if (ch >= 'a' && ch <= 'z') {␊ |
| 15 | ␉␉return ch - 'a' + 10;␊ |
| 16 | ␉} else {␊ |
| 17 | ␉␉return -1;␊ |
| 18 | ␉}␊ |
| 19 | }␊ |
| 20 | ␊ |
| 21 | uintmax_t strntoumax(const char *nptr, char **endptr, int base, size_t n)␊ |
| 22 | {␊ |
| 23 | ␉int minus = 0;␊ |
| 24 | ␉uintmax_t v = 0;␊ |
| 25 | ␉int d;␊ |
| 26 | ␊ |
| 27 | ␉while (n && isspace((unsigned char)*nptr)) {␊ |
| 28 | ␉␉nptr++;␊ |
| 29 | ␉␉n--;␊ |
| 30 | ␉}␊ |
| 31 | ␊ |
| 32 | ␉/* Single optional + or - */␊ |
| 33 | ␉if (n) {␊ |
| 34 | ␉␉char c = *nptr;␊ |
| 35 | ␉␉if (c == '-' || c == '+') {␊ |
| 36 | ␉␉␉minus = (c == '-');␊ |
| 37 | ␉␉␉nptr++;␊ |
| 38 | ␉␉␉n--;␊ |
| 39 | ␉␉}␊ |
| 40 | ␉}␊ |
| 41 | ␊ |
| 42 | ␉if (base == 0) {␊ |
| 43 | ␉␉if (n >= 2 && nptr[0] == '0' &&␊ |
| 44 | ␉␉ (nptr[1] == 'x' || nptr[1] == 'X')) {␊ |
| 45 | ␉␉␉n -= 2;␊ |
| 46 | ␉␉␉nptr += 2;␊ |
| 47 | ␉␉␉base = 16;␊ |
| 48 | ␉␉} else if (n >= 1 && nptr[0] == '0') {␊ |
| 49 | ␉␉␉n--;␊ |
| 50 | ␉␉␉nptr++;␊ |
| 51 | ␉␉␉base = 8;␊ |
| 52 | ␉␉} else {␊ |
| 53 | ␉␉␉base = 10;␊ |
| 54 | ␉␉}␊ |
| 55 | ␉} else if (base == 16) {␊ |
| 56 | ␉␉if (n >= 2 && nptr[0] == '0' &&␊ |
| 57 | ␉␉ (nptr[1] == 'x' || nptr[1] == 'X')) {␊ |
| 58 | ␉␉␉n -= 2;␊ |
| 59 | ␉␉␉nptr += 2;␊ |
| 60 | ␉␉}␊ |
| 61 | ␉}␊ |
| 62 | ␊ |
| 63 | ␉while (n && (d = digitval(*nptr)) >= 0 && d < base) {␊ |
| 64 | ␉␉v = v * base + d;␊ |
| 65 | ␉␉n--;␊ |
| 66 | ␉␉nptr++;␊ |
| 67 | ␉}␊ |
| 68 | ␊ |
| 69 | ␉if (endptr)␊ |
| 70 | ␉␉*endptr = (char *)nptr;␊ |
| 71 | ␊ |
| 72 | ␉return minus ? -v : v;␊ |
| 73 | }␊ |
| 74 | |
