#ifndef __STDLIB_P_H__
# define __STDLIB_P_H__

#include <stdlib.h>
#include <stdbool.h>

/*
** Parse an integer from a string. This is the base function for strtol,
** strtoul, strtoll, and strtoull.
**
** This function does not set errno, and instead returns the error code
** according to conversion rules. Setting errno is troublesome because it's a
** global state that cannot be reverted and thus cannot be tested.
**
** If outl is non-NULL, strto_int produces a long or an unsigned long result
** (depending on use_unsigned). Signedness only affects the range of values
** that are considered to be ERANGE, and both results are stored in *outl.
** Similarly, if outll is non-NULL, strto_int produces a long long or unsigned
** long long result. Only one pointer should be non-NULL.
**
** On platforms where long is 32-bit, 64-bit operations are performed only if
** outll is non-NULL. This is because multiplications with overflow can be
** expensive.
*/
int __strto_int(
	char const * restrict __ptr,
	char ** restrict __endptr,
	int __base,
	long *__outl,
	long long *__outll,
	bool __use_unsigned);

/*
** Parse a floating-point value from a string. This is the base function for
** strtod, strtof, and strtold.
**
** This function is similar to strto_int(). If returns the error code to set in
** errno, and can produce one of three outputs depending on which of out, outf
** and outl is set.
*/
int __strto_fp(
   char const * restrict __ptr,
   char ** restrict __endptr,
   double *__out,
   float *__outf,
   long double *__outl);

#endif /*__STDLIB_P_H__*/