math/test-signgam-finite.c

   1 /* Test lgamma functions set signgam for -ffinite-math-only (bug 19211).
   2    Copyright (C) 2015-2019 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <math.h>
  20 #include <stdio.h>
  21
  22 #define RUN_TESTS(FUNC, TYPE)                                   \
  23   do                                                            \
  24     {                                                           \
  25       volatile TYPE a, b, c __attribute__ ((unused));           \
  26       a = 0.5;                                                  \
  27       b = -0.5;                                                 \
  28       signgam = 123;                                            \
  29       c = FUNC (a);                                             \
  30       if (signgam == 1)                                         \
  31         puts ("PASS: " #FUNC " (0.5) setting signgam");         \
  32       else                                                      \
  33         {                                                       \
  34           puts ("FAIL: " #FUNC " (0.5) setting signgam");       \
  35           result = 1;                                           \
  36         }                                                       \
  37       signgam = 123;                                            \
  38       c = FUNC (b);                                             \
  39       if (signgam == -1)                                        \
  40         puts ("PASS: " #FUNC " (-0.5) setting signgam");        \
  41       else                                                      \
  42         {                                                       \
  43           puts ("FAIL: " #FUNC " (-0.5) setting signgam");      \
  44           result = 1;                                           \
  45         }                                                       \
  46     }                                                           \
  47   while (0)
  48
  49 static int
  50 do_test (void)
  51 {
  52   int result = 0;
  53   RUN_TESTS (lgammaf, float);
  54   RUN_TESTS (gammaf, float);
  55   RUN_TESTS (lgamma, double);
  56   RUN_TESTS (gamma, double);
  57   RUN_TESTS (lgammal, long double);
  58   RUN_TESTS (gammal, long double);
  59   return result;
  60 }
  61
  62 #define TEST_FUNCTION do_test ()
  63 #include "../test-skeleton.c"