/* Test iseqsig with excess precision.

   Copyright (C) 2016-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#include <float.h>

#include <math.h>

#include <stdio.h>

static int

do_test (void)

{

  int result = 0;

  if (FLT_EVAL_METHOD == 1 || FLT_EVAL_METHOD == 2 || FLT_EVAL_METHOD > 32)

    {

      /* Excess precision for float.  */

      if (iseqsig (1.0f, 1.0f + (float) DBL_EPSILON))

	{

	  puts ("iseqsig removes excess precision float -> double");

	  result = 1;

	}

      else

	puts ("iseqsig preserves excess precision float -> double");

      if (iseqsig (__builtin_inff (), FLT_MAX * FLT_MAX))

	{

	  puts ("iseqsig removes excess range float -> double");

	  result = 1;

	}

      else

	puts ("iseqsig preserves excess range float -> double");

    }

  if (FLT_EVAL_METHOD == 2 || FLT_EVAL_METHOD > 64)

    {

      /* Excess precision for float and double.  */

      if (iseqsig (1.0f, 1.0f + (float) LDBL_EPSILON))

	{

	  puts ("iseqsig removes excess precision float -> long double");

	  result = 1;

	}

      else

	puts ("iseqsig preserves excess precision float -> long double");

      if (iseqsig (1.0, 1.0 + (double) LDBL_EPSILON))

	{

	  puts ("iseqsig removes excess precision double -> long double");

	  result = 1;

	}

      else

	puts ("iseqsig preserves excess precision double -> long double");

      if (LDBL_MAX_EXP >= 2 * DBL_MAX_EXP)

	{

	  if (iseqsig (__builtin_inf (), DBL_MAX * DBL_MAX))

	    {

	      puts ("iseqsig removes excess range double -> long double");

	      result = 1;

	    }

	    else

	      puts ("iseqsig preserves excess range double -> long double");

	}

    }

  return result;

}

#define TEST_FUNCTION do_test ()

#include "../test-skeleton.c"