isnormall.c revision 1.1
1/* $OpenBSD: isnormall.c,v 1.1 2008/09/07 20:36:07 martynas Exp $ */ 2/* 3 * Copyright (c) 2008 Martynas Venckus <martynas@openbsd.org> 4 * 5 * Permission to use, copy, modify, and distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18#include <sys/types.h> 19#include <machine/ieee.h> 20 21int 22__isnormall(long double e) 23{ 24 struct ieee_ext *p = (struct ieee_ext *)&e; 25 26 return (p->ext_exp != 0 && p->ext_exp != EXT_EXP_INFNAN); 27} 28