| xf.li | bdd93d5 | 2023-05-12 07:10:14 -0700 | [diff] [blame] | 1 | /* Test nearbyint functions do not disable exception traps (bug 19228). |
| 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 | #ifndef FE_INEXACT |
| 24 | # define FE_INEXACT 0 |
| 25 | #endif |
| 26 | |
| 27 | #define TEST_FUNC(NAME, FLOAT, SUFFIX) \ |
| 28 | static int \ |
| 29 | NAME (void) \ |
| 30 | { \ |
| 31 | int result = 0; \ |
| 32 | volatile FLOAT a, b __attribute__ ((unused)); \ |
| 33 | a = 1.5; \ |
| 34 | /* nearbyint must work when traps on "inexact" are enabled. */ \ |
| 35 | b = nearbyint ## SUFFIX (a); \ |
| 36 | /* And it must have left those traps enabled. */ \ |
| 37 | if (fegetexcept () == FE_INEXACT) \ |
| 38 | puts ("PASS: " #FLOAT); \ |
| 39 | else \ |
| 40 | { \ |
| 41 | puts ("FAIL: " #FLOAT); \ |
| 42 | result = 1; \ |
| 43 | } \ |
| 44 | return result; \ |
| 45 | } |
| 46 | |
| 47 | TEST_FUNC (float_test, float, f) |
| 48 | TEST_FUNC (double_test, double, ) |
| 49 | #ifndef NO_LONG_DOUBLE |
| 50 | TEST_FUNC (ldouble_test, long double, l) |
| 51 | #endif |
| 52 | |
| 53 | static int |
| 54 | do_test (void) |
| 55 | { |
| 56 | if (feenableexcept (FE_INEXACT) == -1) |
| 57 | { |
| 58 | puts ("enabling FE_INEXACT traps failed, cannot test"); |
| 59 | return 77; |
| 60 | } |
| 61 | int result = float_test (); |
| 62 | feenableexcept (FE_INEXACT); |
| 63 | result |= double_test (); |
| 64 | #ifndef NO_LONG_DOUBLE |
| 65 | feenableexcept (FE_INEXACT); |
| 66 | result |= ldouble_test (); |
| 67 | #endif |
| 68 | return result; |
| 69 | } |
| 70 | |
| 71 | #define TEST_FUNCTION do_test () |
| 72 | #include "../test-skeleton.c" |