1 | /* Test fegetexceptflag and fesetexceptflag: exception traps enabled. |
2 | Copyright (C) 2016-2022 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 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <fenv.h> |
20 | #include <stdio.h> |
21 | #include <math-tests.h> |
22 | |
23 | static int |
24 | do_test (void) |
25 | { |
26 | int result = 0; |
27 | |
28 | fedisableexcept (FE_ALL_EXCEPT); |
29 | int ret = feraiseexcept (FE_ALL_EXCEPT); |
30 | if (ret != 0) |
31 | { |
32 | if (EXCEPTION_TESTS (float)) |
33 | { |
34 | puts (s: "feraiseexcept (FE_ALL_EXCEPT) failed" ); |
35 | result = 1; |
36 | return result; |
37 | } |
38 | else |
39 | { |
40 | puts (s: "feraiseexcept (FE_ALL_EXCEPT) unsupported, cannot test" ); |
41 | return 77; |
42 | } |
43 | } |
44 | fexcept_t saved; |
45 | ret = fegetexceptflag (flagp: &saved, FE_ALL_EXCEPT); |
46 | if (ret != 0) |
47 | { |
48 | puts (s: "fegetexceptflag failed" ); |
49 | result = 1; |
50 | return result; |
51 | } |
52 | feclearexcept (FE_ALL_EXCEPT); |
53 | |
54 | ret = feenableexcept (FE_ALL_EXCEPT); |
55 | if (!EXCEPTION_ENABLE_SUPPORTED (FE_ALL_EXCEPT) && (ret == -1)) |
56 | { |
57 | puts (s: "feenableexcept (FE_ALL_EXCEPT) not supported, cannot test" ); |
58 | return 77; |
59 | } |
60 | else if (ret != 0) |
61 | { |
62 | puts (s: "feenableexcept (FE_ALL_EXCEPT) failed" ); |
63 | result = 1; |
64 | } |
65 | |
66 | if (EXCEPTION_SET_FORCES_TRAP) |
67 | { |
68 | puts (s: "setting exceptions traps, cannot test on this architecture" ); |
69 | return 77; |
70 | } |
71 | /* The test is that this does not cause exception traps. */ |
72 | ret = fesetexceptflag (flagp: &saved, FE_ALL_EXCEPT); |
73 | if (ret != 0) |
74 | { |
75 | puts (s: "fesetexceptflag failed" ); |
76 | result = 1; |
77 | } |
78 | feclearexcept (FE_ALL_EXCEPT); |
79 | |
80 | return result; |
81 | } |
82 | |
83 | #define TEST_FUNCTION do_test () |
84 | #include "../test-skeleton.c" |
85 | |