static unsigned long long strtox(const char *s, char **p, int base, unsigned long long lim) { /* FIXME: use a helper function or macro to setup the FILE */ FILE f; f.flags = 0; f.buf = f.rpos = (void *)s; if ((size_t)s > (size_t)-1/2) f.rend = (void *)-1; else f.rend = (unsigned char *)s+(size_t)-1/2; f.lock = -1; shlim(&f, 0); unsigned long long y = __intscan(&f, base, 1, lim); if (p) { size_t cnt = shcnt(&f); *p = (char *)s + cnt; } return y; }
static unsigned long long wcstox(const wchar_t *s, wchar_t **p, int base, unsigned long long lim) { wchar_t *t = (wchar_t *)s; unsigned char buf[64]; FILE f = {0}; f.flags = 0; f.rpos = f.rend = 0; f.buf = buf + 4; f.buf_size = sizeof buf - 4; f.lock = -1; f.read = do_read; while (iswspace(*t)) t++; f.cookie = (void *)t; shlim(&f, 0); unsigned long long y = __intscan(&f, base, 1, lim); if (p) { size_t cnt = shcnt(&f); *p = cnt ? t + cnt : (wchar_t *)s; } return y; }