1/* s_finitef.c -- float version of s_finite.c. 2 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@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 32int 33finitef(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