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annotate src/libm/s_fabs.c @ 3294:470d0a416aa7

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Fixed bug #714 fuzzyTew@gmail.com 2009-03-14 15:18:45 PDT patch to change HAVE_ICONV to HAVE_ICONV_H There are two separate iconv checks in configure -- one for the header file and one for the library. include/SDL_stdinc.h uses the library define to see whether or not it should reference the types defined in the header, which naturally breaks if the library exists and the header does not.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 21 Sep 2009 11:04:01 +0000
parents dc1eb82ffdaa
children
rev   line source
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a98604b691c8 Expanded the libm support and put it into a separate directory.
Sam Lantinga <slouken@libsdl.org>
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1 /* @(#)s_fabs.c 5.1 93/09/24 */
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2 /*
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3 * ====================================================
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4 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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5 *
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6 * Developed at SunPro, a Sun Microsystems, Inc. business.
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7 * Permission to use, copy, modify, and distribute this
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8 * software is freely granted, provided that this notice
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9 * is preserved.
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10 * ====================================================
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11 */
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12
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13 #if defined(LIBM_SCCS) && !defined(lint)
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dc1eb82ffdaa Von: Thomas Zimmermann
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14 static const char rcsid[] =
dc1eb82ffdaa Von: Thomas Zimmermann
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15 "$NetBSD: s_fabs.c,v 1.7 1995/05/10 20:47:13 jtc Exp $";
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16 #endif
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17
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18 /*
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19 * fabs(x) returns the absolute value of x.
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20 */
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21
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22 #include "math.h"
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23 #include "math_private.h"
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24
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25 libm_hidden_proto(fabs)
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26 #ifdef __STDC__
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27 double fabs(double x)
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28 #else
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29 double fabs(x)
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30 double x;
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31 #endif
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32 {
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33 u_int32_t high;
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34 GET_HIGH_WORD(high, x);
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35 SET_HIGH_WORD(x, high & 0x7fffffff);
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36 return x;
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37 }
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38
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39 libm_hidden_def(fabs)