87 lines
2.4 KiB
C
87 lines
2.4 KiB
C
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/*
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* Copyright (c) 2014, Andreas Sandberg
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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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*
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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
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* 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,
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* 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
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _FPTYPES_H
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#define _FPTYPES_H 1
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @addtogroup fp64
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* @{
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*/
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/** Internal representation of a 64-bit float */
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typedef union {
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/**
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* Raw value exposed as an unsigned integer. Mainly used for bit
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* manipulation.
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*/
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uint64_t bits;
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/** Representation using the built-in double type */
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double value;
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} fp64_t;
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/** @} */
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/**
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* @addtogroup fp80
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* @{
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*/
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/** Internal representation of an 80-bit float. */
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typedef union {
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struct {
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/** Raw representation of the integer part bit and the
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* fraction. Note that unlike 64-bit floating point
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* representations the integer bit is explicit. */
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uint64_t fi;
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/** Raw representation of sign bit and exponent */
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uint16_t se;
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} repr;
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/**
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* Represented as a char array, mainly intended for debug dumping
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* and serialization.
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*/
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char bits[10];
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} fp80_t;
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/** @} */
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif
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