/* s_isnanf.c -- float version of s_isnan.c.

 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.

 */

/*

 * ====================================================

 * Copyright (C) 1993, 2011 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 char rcsid[] = "$NetBSD: s_isnanf.c,v 1.4 1995/05/10 20:47:38 jtc Exp $";

#endif

/*

 * isnanf(x) returns 1 is x is nan, else 0;

 * no branching!

 */

#include <math.h>

#include <math_private.h>

#undef __isnanf

int __isnanf(float x)

{

	int32_t ix;

	GET_FLOAT_WORD(ix,x);

	ix &= 0x7fffffff;

	ix = 0x7f800000 - ix;

	return (int)(((uint32_t)(ix))>>31);

}

hidden_def (__isnanf)

weak_alias (__isnanf, isnanf)