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annotate tests/test-log-ieee.h @ 17249:e542fd46ad6f

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maint: update all copyright year number ranges Run "make update-copyright". Compare to commit 1602f0a from last year. Signed-off-by: Eric Blake <eblake@redhat.com>
author Eric Blake <eblake@redhat.com>
date Tue, 01 Jan 2013 00:50:58 +0000
parents 902a0df8d8d7
children 344018b6e5d7
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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902a0df8d8d7 Tests for module 'logf-ieee'.
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1 /* Test of log*() function family.
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2 Copyright (C) 2012-2013 Free Software Foundation, Inc.
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3
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4 This program is free software: you can redistribute it and/or modify
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5 it under the terms of the GNU General Public License as published by
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6 the Free Software Foundation; either version 3 of the License, or
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7 (at your option) any later version.
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8
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9 This program is distributed in the hope that it will be useful,
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 GNU General Public License for more details.
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13
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14 You should have received a copy of the GNU General Public License
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15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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16
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17 static void
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18 test_function (void)
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19 {
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20 /* [MX] shaded specification in POSIX. */
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21
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22 /* Negative arguments. */
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23 ASSERT (ISNAN (LOG (- L_(0.00001))));
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24 ASSERT (ISNAN (LOG (- L_(1.0))));
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25 ASSERT (ISNAN (LOG (- L_(1000000.0))));
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26 ASSERT (ISNAN (LOG (- INFINITY)));
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27
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28 /* NaN. */
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29 ASSERT (ISNAN (LOG (NAN)));
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30
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31 /* Only rational value. */
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32 {
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33 DOUBLE z = LOG (L_(1.0));
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34 ASSERT (z == L_(0.0));
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35 ASSERT (!signbit (z));
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36 }
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37
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38 /* Infinity. */
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39 ASSERT (LOG (INFINITY) == INFINITY);
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40 }