1#include <stdlib.h>
2#include "shgetc.h"
3#include "floatscan.h"
4#include "stdio_impl.h"
5#include "libc.h"
6
7static long double strtox(const char *s, char **p, int prec)
8{
9	FILE f = {
10		.buf = (void *)s, .rpos = (void *)s,
11		.rend = (void *)-1, .lock = -1
12	};
13	shlim(&f, 0);
14	long double y = __floatscan(&f, prec, 1);
15	off_t cnt = shcnt(&f);
16	if (p) *p = cnt ? (char *)s + cnt : (char *)s;
17	return y;
18}
19
20float strtof(const char *restrict s, char **restrict p)
21{
22	return strtox(s, p, 0);
23}
24
25double strtod(const char *restrict s, char **restrict p)
26{
27	return strtox(s, p, 1);
28}
29
30long double strtold(const char *restrict s, char **restrict p)
31{
32	return strtox(s, p, 2);
33}
34
35weak_alias(strtof, strtof_l);
36weak_alias(strtod, strtod_l);
37weak_alias(strtold, strtold_l);
38weak_alias(strtof, __strtof_l);
39weak_alias(strtod, __strtod_l);
40weak_alias(strtold, __strtold_l);
41