blob: a299dc045cd8fcafda41b689e82786aba9b4e129 [file] [log] [blame]
#include <inttypes.h>
#include <stdlib.h>
#include <errno.h>
#include <ctype.h>
#include "intparse.h"
uintmax_t strtoumax(const char *s1, char **p, int base)
{
const unsigned char *s = (void *)s1;
struct intparse ip = {0};
if (p) *p = (char *)s1;
if (base && base-2U > 34) {
errno = EINVAL;
return 0;
}
for (; isspace(*s); s++);
ip.base = base;
__intparse(&ip, s, SIZE_MAX);
if (p && ip.err != EINVAL)
*p = (char *)s + ip.cnt;
if (ip.err) {
errno = ip.err;
if (ip.err == EINVAL) return 0;
return UINTMAX_MAX;
}
return ip.neg ? -ip.val : ip.val;
}