/* Test lgamma functions do not set signgam for ISO C.

   Copyright (C) 2015-2018 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/>.  */

#undef _LIBC

#undef __LIBC_INTERNAL_MATH_INLINES

#undef _GNU_SOURCE

#include <math.h>

#include <stdio.h>

#define INITVAL ((TYPE) -1 / 3)

#if DO_INIT

TYPE signgam = INITVAL;

#else

TYPE signgam;

#endif

#define RUN_TESTS(FUNC, TYPE)					\

  do								\

    {								\

      volatile TYPE a, b, c __attribute__ ((unused));		\

      a = 0.5;							\

      b = -0.5;							\

      signgam = INITVAL;					\

      c = FUNC (a);						\

      if (signgam == INITVAL)					\

	puts ("PASS: " #FUNC " (0.5) setting signgam");		\

      else							\

	{							\

	  puts ("FAIL: " #FUNC " (0.5) setting signgam");	\

	  result = 1;						\

	}							\

      signgam = INITVAL;					\

      c = FUNC (b);						\

      if (signgam == INITVAL)					\

	puts ("PASS: " #FUNC " (-0.5) setting signgam");	\

      else							\

	{							\

	  puts ("FAIL: " #FUNC " (-0.5) setting signgam");	\

	  result = 1;						\

	}							\

    }								\

  while (0)

int

main (void)

{

  int result = 0;

  RUN_TESTS (lgammaf, float);

  RUN_TESTS (lgamma, double);

  RUN_TESTS (lgammal, long double);

  return result;

}