/* @(#)s_finite.c 5.1 93/09/24 */ /* * ==================================================== * 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. * ==================================================== * * $FreeBSD: src/lib/msun/src/s_finite.c,v 1.6 1999/08/28 00:06:48 peter Exp $ * $DragonFly: src/lib/msun/src/Attic/s_finite.c,v 1.2 2003/06/17 04:26:53 dillon Exp $ */ /* * finite(x) returns 1 is x is finite, else 0; * no branching! */ #include "math.h" #include "math_private.h" #ifdef __STDC__ int __generic_finite(double x) #else int __generic_finite(x) double x; #endif { int32_t hx; GET_HIGH_WORD(hx,x); return (int)((u_int32_t)((hx&0x7fffffff)-0x7ff00000)>>31); }