openharmony_kernel_liteos_m/kal/posix/musl_src/stdlib/strtol.c

39 lines
878 B
C

#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)
{
FILE f;
sh_fromstring(&f, s);
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);
}
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);
}
weak_alias(strtol, __strtol_internal);
weak_alias(strtoul, __strtoul_internal);
weak_alias(strtoull, __strtoull_internal);