| xf.li | bdd93d5 | 2023-05-12 07:10:14 -0700 | [diff] [blame] | 1 | /* Test fesetenv (FE_DFL_ENV) and fesetenv (FE_NOMASK_ENV) clear |
| 2 | exceptions (bug 19181). |
| 3 | Copyright (C) 2015-2016 Free Software Foundation, Inc. |
| 4 | This file is part of the GNU C Library. |
| 5 | |
| 6 | The GNU C Library is free software; you can redistribute it and/or |
| 7 | modify it under the terms of the GNU Lesser General Public |
| 8 | License as published by the Free Software Foundation; either |
| 9 | version 2.1 of the License, or (at your option) any later version. |
| 10 | |
| 11 | The GNU C Library is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | Lesser General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU Lesser General Public |
| 17 | License along with the GNU C Library; if not, see |
| 18 | <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #include <fenv.h> |
| 21 | #include <float.h> |
| 22 | #include <stdio.h> |
| 23 | |
| 24 | volatile float fa = 1.0f, fb = 0.0f, fc = FLT_MAX, fr; |
| 25 | volatile long double lda = 1.0L, ldb = 0.0L, ldc = LDBL_MAX, ldr; |
| 26 | |
| 27 | static void |
| 28 | raise_exceptions (void) |
| 29 | { |
| 30 | /* Raise exceptions both with feraiseexcept and arithmetic to allow |
| 31 | for case of multiple floating-point units with separate |
| 32 | exceptions state. */ |
| 33 | feraiseexcept (FE_ALL_EXCEPT); |
| 34 | fr = fb / fb; |
| 35 | fr = fa / fb; |
| 36 | fr = fc * fc; |
| 37 | fr = fa / fc / fc; |
| 38 | ldr = ldb / ldb; |
| 39 | ldr = lda / ldb; |
| 40 | ldr = ldc * ldc; |
| 41 | ldr = lda / ldc / ldc; |
| 42 | } |
| 43 | |
| 44 | static __attribute__ ((noinline)) int |
| 45 | run_tests (void) |
| 46 | { |
| 47 | int result = 0; |
| 48 | raise_exceptions (); |
| 49 | if (fesetenv (FE_DFL_ENV) == 0) |
| 50 | { |
| 51 | puts ("PASS: fesetenv (FE_DFL_ENV)"); |
| 52 | if (fetestexcept (FE_ALL_EXCEPT) == 0) |
| 53 | puts ("PASS: fesetenv (FE_DFL_ENV) clearing exceptions"); |
| 54 | else |
| 55 | { |
| 56 | puts ("FAIL: fesetenv (FE_DFL_ENV) clearing exceptions"); |
| 57 | result = 1; |
| 58 | } |
| 59 | } |
| 60 | else |
| 61 | { |
| 62 | puts ("FAIL: fesetenv (FE_DFL_ENV)"); |
| 63 | result = 1; |
| 64 | } |
| 65 | #ifdef FE_NOMASK_ENV |
| 66 | raise_exceptions (); |
| 67 | if (fesetenv (FE_NOMASK_ENV) == 0) |
| 68 | { |
| 69 | if (fetestexcept (FE_ALL_EXCEPT) == 0) |
| 70 | puts ("PASS: fesetenv (FE_NOMASK_ENV) clearing exceptions"); |
| 71 | else |
| 72 | { |
| 73 | puts ("FAIL: fesetenv (FE_NOMASK_ENV) clearing exceptions"); |
| 74 | result = 1; |
| 75 | } |
| 76 | } |
| 77 | else |
| 78 | puts ("fesetenv (FE_NOMASK_ENV) failed, cannot test"); |
| 79 | #endif |
| 80 | return result; |
| 81 | } |
| 82 | |
| 83 | static int |
| 84 | do_test (void) |
| 85 | { |
| 86 | CHECK_CAN_TEST; |
| 87 | return run_tests (); |
| 88 | } |
| 89 | |
| 90 | #define TEST_FUNCTION do_test () |
| 91 | #include "../test-skeleton.c" |