75 lines
2.6 KiB
C
75 lines
2.6 KiB
C
/****************************************************************************
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** Copyright (c) 2017, Fougue Ltd. <http://www.fougue.pro>
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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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**
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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 FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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****************************************************************************/
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/*! \file endian.h
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* Architecture endianness
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*
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* \addtogroup gmio_core
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* @{
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*/
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#pragma once
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#include "global.h"
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/*! Common endianness (byte order) of computer memory */
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enum gmio_endianness
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{
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/*! Other (unknown) byte-order */
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GMIO_ENDIANNESS_UNKNOWN = 0,
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/*! The least significant byte is stored at the lowest address. The other
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* bytes follow in increasing order of significance */
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GMIO_ENDIANNESS_LITTLE,
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/*! The most significant byte is stored at the lowest address. The other
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* bytes follow in decreasing order of significance */
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GMIO_ENDIANNESS_BIG,
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#ifdef GMIO_HOST_IS_BIG_ENDIAN
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GMIO_ENDIANNESS_HOST = GMIO_ENDIANNESS_BIG
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#else
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/*! Endianness(byte order) used by the host computer for storing data in
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* memory.
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*
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* Set at configure-time to either GMIO_ENDIANNESS_LITTLE or
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* GMIO_ENDIANNESS_BIG */
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GMIO_ENDIANNESS_HOST = GMIO_ENDIANNESS_LITTLE
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#endif
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};
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GMIO_C_LINKAGE_BEGIN
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/*! Returns endianness (byte order) of the host's CPU architecture */
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GMIO_API enum gmio_endianness gmio_host_endianness();
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GMIO_C_LINKAGE_END
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/*! @} */
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