src/libm/s_fabs.c
author Sam Lantinga <slouken@libsdl.org>
Wed, 16 Feb 2011 17:17:21 -0800
changeset 5328 f34a5f9ce9f6
parent 3162 dc1eb82ffdaa
child 6044 35448a5ea044
permissions -rw-r--r--
Fixed bug 1122 (spinlock fails to compile with -march=armv4t)

/* @(#)s_fabs.c 5.1 93/09/24 */
/*
 * ====================================================
 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
 *
 * Developed at SunPro, a Sun Microsystems, Inc. business.
 * Permission to use, copy, modify, and distribute this
 * software is freely granted, provided that this notice
 * is preserved.
 * ====================================================
 */

#if defined(LIBM_SCCS) && !defined(lint)
static const char rcsid[] =
    "$NetBSD: s_fabs.c,v 1.7 1995/05/10 20:47:13 jtc Exp $";
#endif

/*
 * fabs(x) returns the absolute value of x.
 */

#include "math.h"
#include "math_private.h"

libm_hidden_proto(fabs)
#ifdef __STDC__
     double fabs(double x)
#else
     double fabs(x)
     double x;
#endif
{
    u_int32_t high;
    GET_HIGH_WORD(high, x);
    SET_HIGH_WORD(x, high & 0x7fffffff);
    return x;
}

libm_hidden_def(fabs)