Mercurial > gnulib
annotate tests/test-fmod-ieee.h @ 40231:9b3c79fdfe0b
strtod: fix clash with strtold
Problem reported for RHEL 5 by Jesse Caldwell (Bug#34817).
* lib/strtod.c (compute_minus_zero, minus_zero):
Simplify by remving the macro / external variable,
and having just a function. User changed. This avoids
the need for an external variable that might clash.
| author | Paul Eggert <eggert@cs.ucla.edu> |
|---|---|
| date | Mon, 11 Mar 2019 16:40:29 -0700 |
| parents | b06060465f09 |
| children |
| rev | line source |
|---|---|
| 16480 | 1 /* Test of fmod*() function family. |
|
40057
b06060465f09
maint: Run 'make update-copyright'
Paul Eggert <eggert@cs.ucla.edu>
parents:
19484
diff
changeset
|
2 Copyright (C) 2012-2019 Free Software Foundation, Inc. |
| 16480 | 3 |
| 4 This program is free software: you can redistribute it and/or modify | |
| 5 it under the terms of the GNU General Public License as published by | |
| 6 the Free Software Foundation; either version 3 of the License, or | |
| 7 (at your option) any later version. | |
| 8 | |
| 9 This program is distributed in the hope that it will be useful, | |
| 10 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 GNU General Public License for more details. | |
| 13 | |
| 14 You should have received a copy of the GNU General Public License | |
| 19190 | 15 along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
| 16480 | 16 |
| 17 static void | |
| 18 test_function (void) | |
| 19 { | |
| 20 /* [MX] shaded specification in POSIX. */ | |
| 21 | |
| 22 /* NaN. */ | |
| 23 ASSERT (ISNAN (FMOD (NAN, L_(2.0)))); | |
| 24 ASSERT (ISNAN (FMOD (NAN, L_(0.0)))); | |
| 25 ASSERT (ISNAN (FMOD (L_(2.0), NAN))); | |
| 26 ASSERT (ISNAN (FMOD (L_(0.0), NAN))); | |
| 27 ASSERT (ISNAN (FMOD (NAN, NAN))); | |
| 28 | |
| 29 /* y is zero. */ | |
| 30 ASSERT (ISNAN (FMOD (L_(2.0), L_(0.0)))); | |
| 31 ASSERT (ISNAN (FMOD (L_(2.0), MINUS_ZERO))); | |
| 32 ASSERT (ISNAN (FMOD (INFINITY, L_(0.0)))); | |
| 33 ASSERT (ISNAN (FMOD (INFINITY, MINUS_ZERO))); | |
| 34 | |
| 35 /* x is infinite. */ | |
| 36 ASSERT (ISNAN (FMOD (INFINITY, L_(2.0)))); | |
| 37 ASSERT (ISNAN (FMOD (INFINITY, - L_(2.0)))); | |
| 38 | |
| 39 /* x is zero. */ | |
| 40 { | |
| 41 DOUBLE z = FMOD (L_(0.0), L_(2.0)); | |
| 42 ASSERT (z == L_(0.0)); | |
| 43 ASSERT (!signbit (z)); | |
| 44 } | |
| 45 { | |
| 46 DOUBLE z = FMOD (MINUS_ZERO, L_(2.0)); | |
| 47 ASSERT (z == L_(0.0)); | |
| 48 ASSERT (!!signbit (z) == !!signbit (MINUS_ZERO)); | |
| 49 } | |
| 50 { | |
| 51 DOUBLE z = FMOD (L_(0.0), - L_(2.0)); | |
| 52 ASSERT (z == L_(0.0)); | |
| 53 ASSERT (!signbit (z)); | |
| 54 } | |
| 55 { | |
| 56 DOUBLE z = FMOD (MINUS_ZERO, - L_(2.0)); | |
| 57 ASSERT (z == L_(0.0)); | |
| 58 ASSERT (!!signbit (z) == !!signbit (MINUS_ZERO)); | |
| 59 } | |
| 60 { | |
| 61 DOUBLE z = FMOD (L_(0.0), INFINITY); | |
| 62 ASSERT (z == L_(0.0)); | |
| 63 ASSERT (!signbit (z)); | |
| 64 } | |
| 65 { | |
| 66 DOUBLE z = FMOD (MINUS_ZERO, INFINITY); | |
| 67 ASSERT (z == L_(0.0)); | |
| 68 ASSERT (!!signbit (z) == !!signbit (MINUS_ZERO)); | |
| 69 } | |
| 70 { | |
| 71 DOUBLE z = FMOD (L_(0.0), - INFINITY); | |
| 72 ASSERT (z == L_(0.0)); | |
| 73 ASSERT (!signbit (z)); | |
| 74 } | |
| 75 { | |
| 76 DOUBLE z = FMOD (MINUS_ZERO, - INFINITY); | |
| 77 ASSERT (z == L_(0.0)); | |
| 78 ASSERT (!!signbit (z) == !!signbit (MINUS_ZERO)); | |
| 79 } | |
| 80 | |
| 81 /* y is infinite. */ | |
| 82 { | |
| 83 DOUBLE z = FMOD (L_(2.5), INFINITY); | |
| 84 ASSERT (z == L_(2.5)); | |
| 85 } | |
| 86 { | |
| 87 DOUBLE z = FMOD (L_(2.5), - INFINITY); | |
| 88 ASSERT (z == L_(2.5)); | |
| 89 } | |
| 90 { | |
| 91 DOUBLE z = FMOD (- L_(2.5), INFINITY); | |
| 92 ASSERT (z == - L_(2.5)); | |
| 93 } | |
| 94 { | |
| 95 DOUBLE z = FMOD (- L_(2.5), - INFINITY); | |
| 96 ASSERT (z == - L_(2.5)); | |
| 97 } | |
| 98 } |