about summary refs log tree commit diff
path: root/math/test-signgam-main.c
blob: 6aed7f4f017b0d633be056dd5ac8439b2105f849 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
/* Test lgamma functions do not set signgam for ISO C.
   Copyright (C) 2015 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 _GNU_SOURCE
#define _ISOMAC

#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);
#ifndef NO_LONG_DOUBLE
  RUN_TESTS (lgammal, long double);
#endif
  return result;
}