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0b9af583 JM |
1 | /* Test fesetenv (FE_DFL_ENV) and fesetenv (FE_NOMASK_ENV) clear |
2 | exceptions (bug 19181). | |
2b778ceb | 3 | Copyright (C) 2015-2021 Free Software Foundation, Inc. |
0b9af583 JM |
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 | |
5a82c748 | 18 | <https://www.gnu.org/licenses/>. */ |
0b9af583 JM |
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" |