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annotate src/libm/math.h @ 2763:6fc50bdd88c0

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Some cleanups on the new XInput code. One or two things got moved around, but largely this is hooked up correctly in the Unix configure system now: it can be dynamically loaded and fallback gracefully if not available, or libXi can be directly linked to libSDL. XInput support can be --disable'd from the configure script, too (defaults to enabled). Please note that while the framework is in place to gracefully fallback, the current state of the source requires XInput. We'll need to adjust a few things still to correct this.
author Ryan C. Gordon <icculus@icculus.org>
date Wed, 17 Sep 2008 08:20:57 +0000
parents 02aa80d7905f
children 26861c61142a
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #ifdef HAVE_MATH_H
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25 #include <math.h>
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26 #else
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27
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28 /* Math routines from uClibc: http://www.uclibc.org */
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29
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30 extern double __ieee754_log(double x);
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31 extern double __ieee754_pow(double x, double y);
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32 extern double __ieee754_sqrt(double x);
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33
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34 #define log(x) __ieee754_log(x)
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35 #define pow(x, y) __ieee754_pow(x, y)
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36 #define sqrt(x) __ieee754_sqrt(x)
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37
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38 extern double copysign(double x, double y);
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39 extern double cos(double x);
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40 extern double fabs(double x);
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41 extern double floor(double x);
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42 extern double scalbn(double x, int n);
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43 extern double sin(double x);
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44
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45 #endif /* HAVE_MATH_H */
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46
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47 /* vi: set ts=4 sw=4 expandtab: */