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#include <wchar.h> #include <wctype.h> #include <stdlib.h> #include <inttypes.h> #include <errno.h> #include "intparse.h" uintmax_t wcstoumax(const wchar_t *s, wchar_t **p, int base) { const wchar_t *s1 = s; struct intparse ip = {0}; if (p) *p = (wchar_t *)s; if (base && base-2U > 34) { errno = EINVAL; return 0; } for (; iswspace(*s); s++); ip.base = base; for (; __intparse(&ip, (char[]){(*s&-(*s<128U))}, 1); s++); if (p && ip.err != EINVAL) *p = (wchar_t *)s1 + ip.cnt; if (ip.err) { errno = ip.err; if (ip.err == EINVAL) return 0; return UINTMAX_MAX; } return ip.neg ? -ip.val : ip.val; } |