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      1 /* s_finitef.c -- float version of s_finite.c.
      2  * Conversion to float by Ian Lance Taylor, Cygnus Support, ian (at) cygnus.com.
      3  */
      4 
      5 /*
      6  * ====================================================
      7  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
      8  *
      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
     12  * is preserved.
     13  * ====================================================
     14  */
     15 
     16 #include <sys/cdefs.h>
     17 #if defined(LIBM_SCCS) && !defined(lint)
     18 __RCSID("$NetBSD: s_finitef.c,v 1.9 2024/05/08 01:40:27 riastradh Exp $");
     19 #endif
     20 
     21 /*
     22  * finitef(x) returns 1 if x is finite, else 0;
     23  * no branching!
     24  */
     25 
     26 #include "namespace.h"
     27 #include "math.h"
     28 #include "math_private.h"
     29 
     30 __weak_alias(finitef, _finitef)
     31 
     32 int
     33 finitef(float x)
     34 {
     35 	int32_t ix;
     36 	GET_FLOAT_WORD(ix,x);
     37 	return (int)((u_int32_t)((ix&0x7fffffff)-0x7f800000)>>31);
     38 }
     39