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| | #include "stdio_impl.h"
#include "intscan.h"
#include "shgetc.h"
#include <inttypes.h>
#include <limits.h>
#include <ctype.h>
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;
}
unsigned long long strtoull(const char *restrict s, char **restrict p, int base)
{
return strtox(s, p, base, ULLONG_MAX);
}
long long strtoll(const char *restrict s, char **restrict p, int base)
{
return strtox(s, p, base, LLONG_MIN);
}
unsigned long strtoul(const char *restrict s, char **restrict p, int base)
{
return strtox(s, p, base, ULONG_MAX);
}
long strtol(const char *restrict s, char **restrict p, int base)
{
return strtox(s, p, base, 0UL+LONG_MIN);
}
intmax_t strtoimax(const char *restrict s, char **restrict p, int base)
{
return strtoll(s, p, base);
}
uintmax_t strtoumax(const char *restrict s, char **restrict p, int base)
{
return strtoull(s, p, base);
}
weak_alias(strtol, __strtol_internal);
weak_alias(strtoul, __strtoul_internal);
weak_alias(strtoll, __strtoll_internal);
weak_alias(strtoull, __strtoull_internal);
weak_alias(strtoimax, __strtoimax_internal);
weak_alias(strtoumax, __strtoumax_internal);
|