1 /* s_isnanf.c -- float version of s_isnan.c.
2 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
6 * ====================================================
7 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
9 * Developed at SunPro, a Sun Microsystems, Inc. business.
10 * Permission to use, copy, modify, and distribute this
11 * software is freely granted, provided that this notice
13 * ====================================================
17 static char rcsid[] = "$FreeBSD: src/lib/msun/src/s_isnanf.c,v 1.5 1999/08/28 00:06:51 peter Exp $";
21 * isnanf(x) returns 1 is x is nan, else 0;
26 #include "math_private.h"
39 return (int)(((u_int32_t)(ix))>>31);