uclibc-ng/libm/s_fabs.c

/*
 * ====================================================
 * 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.
 * ====================================================
 */

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

#include <features.h>
/* Prevent math.h from defining a colliding inline */
#undef __USE_EXTERN_INLINES
#include "math.h"
#include "math_private.h"

double fabs(double x)
{
	u_int32_t high;
	GET_HIGH_WORD(high,x);
	SET_HIGH_WORD(x,high&0x7fffffff);
        return x;
}
libm_hidden_def(fabs)