| /* Test iszero 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> |
| |
| #define TEST(TYPE, TRUE_MIN) \ |
| do \ |
| { \ |
| if (iszero (TRUE_MIN / 2)) \ |
| puts ("iszero removes excess precision for " #TYPE); \ |
| else \ |
| { \ |
| puts ("iszero fails to remove excess precision for " #TYPE); \ |
| result = 1; \ |
| } \ |
| } \ |
| while (0) |
| |
| static int |
| do_test (void) |
| { |
| int result = 0; |
| |
| TEST (float, FLT_TRUE_MIN); |
| TEST (double, DBL_TRUE_MIN); |
| TEST (long double, LDBL_TRUE_MIN); |
| |
| return result; |
| } |
| |
| #define TEST_FUNCTION do_test () |
| #include "../test-skeleton.c" |