/* Test mpf_add.

Copyright 1996, 2001 Free Software Foundation, Inc.

This file is part of the GNU MP Library test suite.

The GNU MP Library test suite is free software; you can redistribute it

and/or modify it under the terms of the GNU General Public License as

published by the Free Software Foundation; either version 3 of the License,

or (at your option) any later version.

The GNU MP Library test suite is distributed in the hope that it will be

useful, but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General

Public License for more details.

You should have received a copy of the GNU General Public License along with

the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */

#include <stdio.h>

#include <stdlib.h>

#include "gmp.h"

#include "gmp-impl.h"

#include "tests.h"

#ifndef SIZE

#define SIZE 16

#endif

int

main (int argc, char **argv)

{

  mp_size_t size;

  mp_exp_t exp;

  int reps = 20000;

  int i;

  mpf_t u, v, w, wref;

  mp_size_t bprec = 100;

  mpf_t rerr, max_rerr, limit_rerr;

  tests_start ();

  if (argc > 1)

    {

      reps = strtol (argv[1], 0, 0);

      if (argc > 2)

	bprec = strtol (argv[2], 0, 0);

    }

  mpf_set_default_prec (bprec);

  mpf_init_set_ui (limit_rerr, 1);

  mpf_div_2exp (limit_rerr, limit_rerr, bprec);

#if VERBOSE

  mpf_dump (limit_rerr);

#endif

  mpf_init (rerr);

  mpf_init_set_ui (max_rerr, 0);

  mpf_init (u);

  mpf_init (v);

  mpf_init (w);

  mpf_init (wref);

  for (i = 0; i < reps; i++)

    {

      size = urandom () % (2 * SIZE) - SIZE;

      exp = urandom () % SIZE;

      mpf_random2 (u, size, exp);

      size = urandom () % (2 * SIZE) - SIZE;

      exp = urandom () % SIZE;

      mpf_random2 (v, size, exp);

      mpf_add (w, u, v);

      refmpf_add (wref, u, v);

      mpf_reldiff (rerr, w, wref);

      if (mpf_cmp (rerr, max_rerr) > 0)

	{

	  mpf_set (max_rerr, rerr);

#if VERBOSE

	  mpf_dump (max_rerr);

#endif

	  if (mpf_cmp (rerr, limit_rerr) > 0)

	    {

	      printf ("ERROR after %d tests\n", i);

	      printf ("   u = "); mpf_dump (u);

	      printf ("   v = "); mpf_dump (v);

	      printf ("wref = "); mpf_dump (wref);

	      printf ("   w = "); mpf_dump (w);

	      abort ();

	    }

	}

    }

  mpf_clear (limit_rerr);

  mpf_clear (rerr);

  mpf_clear (max_rerr);

  mpf_clear (u);

  mpf_clear (v);

  mpf_clear (w);

  mpf_clear (wref);

  tests_end ();

  exit (0);

}