91d4704c12
NetBSD defined ones. Redefine the NetBSD ones in terms of the C99 ones. Step 1 to having <fenv.h>
104 lines
3.0 KiB
C
104 lines
3.0 KiB
C
/* $NetBSD: vaxfp.h,v 1.8 2008/08/05 16:47:42 matt Exp $ */
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/*-
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* Copyright (c) 2003 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Klaus Klein.
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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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* vaxfp.h defines the layout of VAX Floating-Point data types.
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* Only F_floating and D_floating types are defined here;
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* G_floating and H_floating are not supported by NetBSD.
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*/
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#ifndef _VAX_VAXFP_H_
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#define _VAX_VAXFP_H_
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#include <sys/featuretest.h>
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#if defined(_NETBSD_SOURCE) || defined(_ISOC99_SOURCE)
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typedef int fenv_t;
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typedef int fexcept_t;
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#define FE_UNDERFLOW 0x01 /* underflow exception */
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#define FE_ALL_EXCEPT 0x01
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#if !defined(_ISOC99_SOURCE)
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#define FFLT_EXPBITS 8
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#define FFLT_FRACHBITS 7
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#define FFLT_FRACLBITS 16
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#define FFLT_FRACBITS (FFLT_FRACLBITS + FFLT_FRACHBITS)
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struct vax_f_floating {
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unsigned int fflt_frach:FFLT_FRACHBITS;
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unsigned int fflt_exp:FFLT_EXPBITS;
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unsigned int fflt_sign:1;
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unsigned int fflt_fracl:FFLT_FRACLBITS;
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};
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#define DFLT_EXPBITS 8
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#define DFLT_FRACHBITS 7
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#define DFLT_FRACMBITS 16
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#define DFLT_FRACLBITS 32
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#define DFLT_FRACBITS (DFLT_FRACLBITS + DFLT_FRACMBITS + DFLT_FRACHBITS)
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struct vax_d_floating {
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unsigned int dflt_frach:DFLT_FRACHBITS;
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unsigned int dflt_exp:DFLT_EXPBITS;
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unsigned int dflt_sign:1;
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unsigned int dflt_fracm:DFLT_FRACMBITS;
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unsigned int dflt_fracl:DFLT_FRACLBITS;
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};
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/*
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* Exponent biases.
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*/
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#define FFLT_EXP_BIAS 128
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#define DFLT_EXP_BIAS 128
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/*
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* Convenience data structures.
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*/
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union vax_ffloating_u {
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float ffltu_f;
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struct vax_f_floating ffltu_fflt;
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};
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union vax_dfloating_u {
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double dfltu_d;
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struct vax_d_floating dfltu_dflt;
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};
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#endif /* !_ISOC99_SOURCE */
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#endif /* _NETBSD_SOURCE || _ISOC99_SOURCE */
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#endif /* _VAX_VAXFP_H_ */
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