fxlibc/src/stdlib/strtoll.c

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

long long int strtoll(char const * restrict ptr, char ** restrict endptr,
	int base)
{
	long long n = 0;
	int err = __strto_int(ptr, endptr, base, NULL, &n, false);
	if(err != 0) errno = err;
	return n;
}