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| Source at commit 1834 created 12 years 4 months ago. By blackosx, Fix (patch) building process. Resources now download and build successfully so package can be made. Checks are now needed to see if this works on different localizations and different systems. I have a feeling more work weill be needed to handle the unicodes etc. | |
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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 | |
