| /* 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. |
| * ==================================================== |
| */ |
| |
| #if defined(LIBM_SCCS) && !defined(lint) |
| static char rcsid[] = "$NetBSD: s_finitef.c,v 1.4 1995/05/10 20:47:18 jtc Exp $"; |
| #endif |
| |
| /* |
| * finitef(x) returns 1 is x is finite, else 0; |
| * no branching! |
| */ |
| |
| #include <math.h> |
| #include <math_private.h> |
| |
| #undef __finitef |
| |
| #ifndef FINITEF |
| # define FINITEF __finitef |
| #endif |
| |
| int FINITEF(float x) |
| { |
| int32_t ix; |
| GET_FLOAT_WORD(ix,x); |
| return (int)((uint32_t)((ix&0x7f800000)-0x7f800000)>>31); |
| } |
| hidden_def (__finitef) |
| weak_alias (__finitef, finitef) |
