1 /*- 2 * Copyright (c) 2003 Mike Barcroft <mike@FreeBSD.org> 3 * Copyright (c) 2002 David Schultz <das@FreeBSD.ORG> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD: src/lib/libc/include/fpmath.h,v 1.4 2008/12/23 22:20:59 marcel Exp $ 28 */ 29 #ifndef _FPMATH_H_ 30 #define _FPMATH_H_ 31 32 /* Guess long double layout based on compiler defines */ 33 34 #if __LDBL_MANT_DIG__ == 64 && 16383 <= __LDBL_MAX_EXP__ && __LDBL_MAX_EXP__ <= 16384 35 #define _INTEL80_FLOAT 36 #ifdef __LP64__ 37 #define _INTEL80_FLOAT_PAD 38 #endif 39 #endif 40 41 #if __LDBL_MANT_DIG__ == 113 && 16383 <= __LDBL_MAX_EXP__ && __LDBL_MAX_EXP__ <= 16384 42 #define _IEEE128_FLOAT 43 #endif 44 45 #if __LDBL_MANT_DIG__ == 106 && __LDBL_MAX_EXP__ == 1024 46 #define _DOUBLE_DOUBLE_FLOAT 47 #endif 48 49 #ifndef __FLOAT_WORD_ORDER__ 50 #define __FLOAT_WORD_ORDER__ __BYTE_ORDER__ 51 #endif 52 53 #endif /* _FPMATH_H_ */ 54
