unsigned long long wcstoull(const wchar_t *s, wchar_t **p, int base)
{
- uintmax_t x = wcstoumax(s, p, base);
- if (x > ULLONG_MAX) {
+ intmax_t x;
+ if (sizeof(intmax_t) == sizeof(long long))
+ return wcstoumax(s, p, base);
+ x = wcstoimax(s, p, base);
+ if (-x > ULLONG_MAX || x > ULLONG_MAX) {
errno = ERANGE;
return ULLONG_MAX;
}