| xf.li | bdd93d5 | 2023-05-12 07:10:14 -0700 | [diff] [blame] | 1 | /* Test nearbyint functions do not clear exceptions (bug 15491). |
| 2 | Copyright (C) 2015-2016 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 | <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #include <fenv.h> |
| 20 | #include <math.h> |
| 21 | #include <stdio.h> |
| 22 | |
| 23 | #include <math-tests.h> |
| 24 | |
| 25 | #ifndef FE_INVALID |
| 26 | # define FE_INVALID 0 |
| 27 | #endif |
| 28 | |
| 29 | #define TEST_FUNC(NAME, FLOAT, SUFFIX) \ |
| 30 | static int \ |
| 31 | NAME (void) \ |
| 32 | { \ |
| 33 | int result = 0; \ |
| 34 | volatile FLOAT a, b __attribute__ ((unused)); \ |
| 35 | a = 1.0; \ |
| 36 | /* nearbyint must not clear already-raised exceptions. */ \ |
| 37 | feraiseexcept (FE_ALL_EXCEPT); \ |
| 38 | b = nearbyint ## SUFFIX (a); \ |
| 39 | if (fetestexcept (FE_ALL_EXCEPT) == FE_ALL_EXCEPT) \ |
| 40 | puts ("PASS: " #FLOAT); \ |
| 41 | else \ |
| 42 | { \ |
| 43 | puts ("FAIL: " #FLOAT); \ |
| 44 | result = 1; \ |
| 45 | } \ |
| 46 | /* But it mustn't lose exceptions from sNaN arguments. */ \ |
| 47 | if (SNAN_TESTS (FLOAT) && EXCEPTION_TESTS (FLOAT)) \ |
| 48 | { \ |
| 49 | static volatile FLOAT snan = __builtin_nans ## SUFFIX (""); \ |
| 50 | volatile FLOAT c __attribute__ ((unused)); \ |
| 51 | feclearexcept (FE_ALL_EXCEPT); \ |
| 52 | c = nearbyint ## SUFFIX (snan); \ |
| 53 | if (fetestexcept (FE_INVALID) == FE_INVALID) \ |
| 54 | puts ("PASS: " #FLOAT " sNaN"); \ |
| 55 | else \ |
| 56 | { \ |
| 57 | puts ("FAIL: " #FLOAT " sNaN"); \ |
| 58 | result = 1; \ |
| 59 | } \ |
| 60 | } \ |
| 61 | return result; \ |
| 62 | } |
| 63 | |
| 64 | TEST_FUNC (float_test, float, f) |
| 65 | TEST_FUNC (double_test, double, ) |
| 66 | #ifndef NO_LONG_DOUBLE |
| 67 | TEST_FUNC (ldouble_test, long double, l) |
| 68 | #endif |
| 69 | |
| 70 | static int |
| 71 | do_test (void) |
| 72 | { |
| 73 | int result = float_test (); |
| 74 | result |= double_test (); |
| 75 | #ifndef NO_LONG_DOUBLE |
| 76 | result |= ldouble_test (); |
| 77 | #endif |
| 78 | return result; |
| 79 | } |
| 80 | |
| 81 | #define TEST_FUNCTION do_test () |
| 82 | #include "../test-skeleton.c" |