fxlibc/src/stdlib/strtod.c

#include "stdlib_p.h"
#include <errno.h>

double strtod(char const * restrict ptr, char ** restrict endptr)
{
	double d = 0;
	int err = __strto_fp(ptr, endptr, &d, NULL, NULL);
	if(err != 0) errno = err;
	return d;
}