genericopenlibs/openenvcore/libc/inc/_fpmath.h
author Peter Fordham <peter.fordham@gmail.com>
Mon, 22 Mar 2010 12:57:04 -0700
branchCompilerCompatibility
changeset 13 ef48f5dc1b7f
parent 0 e4d67989cc36
permissions -rw-r--r--
Bug 1713 - You can't check the existence of a typedef using the preprocessor. Added a preprocessor check. Also removed an overqualified method name.
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/*-
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 * Copyright (c) 2002, 2003 David Schultz <das@FreeBSD.ORG>
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 *
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 * $FreeBSD: src/lib/libc/arm/_fpmath.h,v 1.4 2005/03/20 00:53:52 cognet Exp $
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 */
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union IEEEl2bits {
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	long double	e;
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	struct {
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#ifndef __ARMEB__
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		unsigned int	manl	:32;
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		unsigned int	manh	:20;
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		unsigned int	exp	:11;
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		unsigned int	sign	:1;
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#else
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		unsigned int		sign	:1;
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		unsigned int		exp	:11;
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		unsigned int		manh	:20;
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		unsigned int		manl	:32;
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#endif
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	} bits;
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};
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#define	LDBL_NBIT	0
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#define	mask_nbit_l(u)	((void)0)
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#define	LDBL_MANH_SIZE	32
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#define	LDBL_MANL_SIZE	32
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#define	LDBL_TO_ARRAY32(u, a) do {			\
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	(a)[0] = (uint32_t)(u).bits.manl;		\
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	(a)[1] = (uint32_t)(u).bits.manh;		\
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} while(0)