| /* @(#)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. | |
| * ==================================================== | |
| */ | |
| #include <LibConfig.h> | |
| #include <sys/EfiCdefs.h> | |
| #if defined(LIBM_SCCS) && !defined(lint) | |
| __RCSID("$NetBSD: s_finite.c,v 1.11 2002/05/26 22:01:55 wiz Exp $"); | |
| #endif | |
| /* | |
| * finite(x) returns 1 is x is finite, else 0; | |
| * no branching! | |
| */ | |
| #include "math.h" | |
| #include "math_private.h" | |
| int | |
| finite(double x) | |
| { | |
| int32_t hx; | |
| GET_HIGH_WORD(hx,x); | |
| return (int)((u_int32_t)((hx&0x7fffffff)-0x7ff00000)>>31); | |
| } |