annotate lib/exp2f.c @ 17935:0ad1f4c9eed5 default tip

tests: support stderr verification with returns_() * tests/init.sh (returns_): Disable tracing for this wrapper function, so that stderr of the wrapped command is unchanged, allowing for verification of the contents.
author Pádraig Brady <P@draigBrady.com>
date Mon, 16 Feb 2015 17:20:39 +0000 (2015-02-16)
parents ab58d4870664
children
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1 /* Exponential base 2 function.
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2 Copyright (C) 2011-2015 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 #include <config.h>
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19 /* Specification. */
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20 #include <math.h>
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21
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22 float
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23 exp2f (float x)
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24 {
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25 return (float) exp2 ((double) x);
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26 }