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#include <stdlib.h>
#include "shgetc.h"
#include "floatscan.h"
#include "stdio_impl.h"
static long double strtox(const char *s, char **p, int prec)
{
char *t = (char *)s;
while (isspace(*t)) t++;
FILE f = {
.buf = (void *)t, .rpos = (void *)t,
.rend = (void *)-1, .lock = -1
};
shlim(&f, 0);
long double y = __floatscan(&f, -1, prec, 1);
off_t cnt = shcnt(&f);
if (p) *p = cnt ? t + cnt : (char *)s;
return y;
}
float strtof(const char *s, char **p)
{
return strtox(s, p, 0);
}
double strtod(const char *s, char **p)
{
return strtox(s, p, 1);
}
long double strtold(const char *s, char **p)
{
return strtox(s, p, 2);
}
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