annotate tests/test-y0.c @ 16536:b4afb7c149dc

New module 'cbrtl'. * lib/math.in.h (cbrtl): New declaration. * lib/cbrtl.c: New file. * m4/cbrtl.m4: New file. * m4/math_h.m4 (gl_MATH_H): Test whether cbrtl is declared. (gl_MATH_H_DEFAULTS): Initialize GNULIB_CBRTL, HAVE_CBRTL, HAVE_DECL_CBRTL. * modules/math (Makefile.am): Substitute GNULIB_CBRTL, HAVE_CBRTL, HAVE_DECL_CBRTL. * modules/cbrtl: New file. * tests/test-math-c++.cc: Check the declaration of cbrtl. * doc/posix-functions/cbrtl.texi: Mention the new module.
author Bruno Haible <bruno@clisp.org>
date Thu, 01 Mar 2012 02:50:14 +0100
parents 8250f2777afc
children e542fd46ad6f
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1 /* Test of y0() function.
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2 Copyright (C) 2010-2012 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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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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17 /* Written by Bruno Haible <bruno@clisp.org>, 2010. */
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19 #include <config.h>
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20
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21 #include <math.h>
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22
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23 #include "signature.h"
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24 SIGNATURE_CHECK (y0, double, (double));
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25
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26 #include "macros.h"
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28 volatile double x;
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29 double y;
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30
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31 int
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32 main ()
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33 {
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34 /* A particular value. */
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35 x = 3.8;
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36 y = y0 (x);
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37 ASSERT (y >= 0.0645032466 && y <= 0.0645032467);
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38
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39 return 0;
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40 }