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780257d4 | 1 | /* Test fetestexceptflag. |
2b778ceb | 2 | Copyright (C) 2016-2021 Free Software Foundation, Inc. |
780257d4 JM |
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 | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
780257d4 JM |
18 | |
19 | #include <fenv.h> | |
20 | #include <stdio.h> | |
21 | #include <math-tests.h> | |
22 | ||
23 | static int | |
24 | test_one (int exc_test, int exc_set, int exc_save) | |
25 | { | |
26 | int result = 0; | |
27 | ||
28 | printf ("Individual test: %x %x %x\n", (unsigned int) exc_test, | |
29 | (unsigned int) exc_set, (unsigned int) exc_save); | |
30 | ||
31 | feclearexcept (FE_ALL_EXCEPT); | |
32 | int ret = fesetexcept (exc_set); | |
33 | if (ret != 0) | |
34 | { | |
35 | puts ("fesetexcept failed"); | |
36 | if (exc_set == 0 || EXCEPTION_TESTS (float)) | |
37 | { | |
38 | puts ("failure of fesetexcept was unexpected"); | |
39 | result = 1; | |
40 | } | |
41 | else | |
42 | puts ("failure of fesetexcept OK, skipping further tests"); | |
43 | return result; | |
44 | } | |
45 | fexcept_t saved; | |
46 | ret = fegetexceptflag (&saved, exc_save); | |
47 | if (ret == 0) | |
48 | puts ("fegetexceptflag succeeded"); | |
49 | else | |
50 | { | |
51 | puts ("fegetexceptflag failed"); | |
52 | result = 1; | |
53 | return result; | |
54 | } | |
55 | ret = fetestexceptflag (&saved, exc_test); | |
56 | if (ret == (exc_set & exc_test)) | |
57 | puts ("fetestexceptflag result correct"); | |
58 | else | |
59 | { | |
60 | printf ("fetestexceptflag returned %x, expected %x\n", ret, | |
61 | exc_set & exc_test); | |
62 | result = 1; | |
63 | } | |
64 | if (exc_save == FE_ALL_EXCEPT) | |
65 | { | |
66 | /* Also test fetestexceptflag testing all exceptions but | |
67 | possibly with only some set. */ | |
68 | ret = fetestexceptflag (&saved, FE_ALL_EXCEPT); | |
69 | if (ret == exc_set) | |
70 | puts ("fetestexceptflag (FE_ALL_EXCEPT) result correct"); | |
71 | else | |
72 | { | |
73 | printf ("fetestexceptflag (FE_ALL_EXCEPT) returned %x, expected %x\n", | |
74 | ret, exc_set); | |
75 | result = 1; | |
76 | } | |
77 | } | |
78 | return result; | |
79 | } | |
80 | ||
81 | static int | |
82 | test_fetestexceptflag (int exc, const char *exc_name) | |
83 | { | |
84 | int result = 0; | |
85 | ||
86 | printf ("Testing %s\n", exc_name); | |
87 | ||
88 | /* Test each case of: whether this exception is set or clear; | |
89 | whether other exceptions are set or clear; whether the whole | |
90 | state is saved or just the state for this exception. */ | |
91 | result |= test_one (exc, 0, exc); | |
92 | result |= test_one (exc, 0, FE_ALL_EXCEPT); | |
93 | result |= test_one (exc, exc, exc); | |
94 | result |= test_one (exc, exc, FE_ALL_EXCEPT); | |
95 | result |= test_one (exc, FE_ALL_EXCEPT & ~exc, exc); | |
96 | result |= test_one (exc, FE_ALL_EXCEPT & ~exc, FE_ALL_EXCEPT); | |
97 | result |= test_one (exc, FE_ALL_EXCEPT, exc); | |
98 | result |= test_one (exc, FE_ALL_EXCEPT, FE_ALL_EXCEPT); | |
99 | ||
100 | return result; | |
101 | } | |
102 | ||
103 | static int | |
104 | do_test (void) | |
105 | { | |
106 | int result = 0; | |
107 | ||
108 | result |= test_fetestexceptflag (0, "0"); | |
109 | result |= test_fetestexceptflag (FE_ALL_EXCEPT, "FE_ALL_EXCEPT"); | |
110 | #ifdef FE_DIVBYZERO | |
111 | result |= test_fetestexceptflag (FE_DIVBYZERO, "FE_DIVBYZERO"); | |
112 | #endif | |
113 | #ifdef FE_INEXACT | |
114 | result |= test_fetestexceptflag (FE_INEXACT, "FE_INEXACT"); | |
115 | #endif | |
116 | #ifdef FE_INVALID | |
117 | result |= test_fetestexceptflag (FE_INVALID, "FE_INVALID"); | |
118 | #endif | |
119 | #ifdef FE_OVERFLOW | |
120 | result |= test_fetestexceptflag (FE_OVERFLOW, "FE_OVERFLOW"); | |
121 | #endif | |
122 | #ifdef FE_UNDERFLOW | |
123 | result |= test_fetestexceptflag (FE_UNDERFLOW, "FE_UNDERFLOW"); | |
124 | #endif | |
125 | ||
126 | return result; | |
127 | } | |
128 | ||
129 | #define TEST_FUNCTION do_test () | |
130 | #include "../test-skeleton.c" |