40 lines
948 B
C
40 lines
948 B
C
/* s_finitef.c -- float version of s_finite.c.
|
|
* Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
|
|
*/
|
|
|
|
/*
|
|
* ====================================================
|
|
* 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.
|
|
* ====================================================
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#if defined(LIBM_SCCS) && !defined(lint)
|
|
__RCSID("$NetBSD: s_finitef.c,v 1.5 1997/10/09 11:31:56 lukem Exp $");
|
|
#endif
|
|
|
|
/*
|
|
* finitef(x) returns 1 is x is finite, else 0;
|
|
* no branching!
|
|
*/
|
|
|
|
#include "math.h"
|
|
#include "math_private.h"
|
|
|
|
#ifdef __STDC__
|
|
int finitef(float x)
|
|
#else
|
|
int finitef(x)
|
|
float x;
|
|
#endif
|
|
{
|
|
int32_t ix;
|
|
GET_FLOAT_WORD(ix,x);
|
|
return (int)((u_int32_t)((ix&0x7fffffff)-0x7f800000)>>31);
|
|
}
|