Blame string/byteswap.h

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/* Copyright (C) 1997-2018 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Lesser General Public
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   License as published by the Free Software Foundation; either
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   version 2.1 of the License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public
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   License along with the GNU C Library; if not, see
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   <http://www.gnu.org/licenses/>.  */
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#ifndef _BYTESWAP_H
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#define _BYTESWAP_H	1
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#include <features.h>
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/* Get the machine specific, optimized definitions.  */
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#include <bits/byteswap.h>
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/* The following definitions must all be macros since otherwise some
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   of the possible optimizations are not possible.  */
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/* Return a value with all bytes in the 16 bit argument swapped.  */
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#define bswap_16(x) __bswap_16 (x)
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/* Return a value with all bytes in the 32 bit argument swapped.  */
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#define bswap_32(x) __bswap_32 (x)
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/* Return a value with all bytes in the 64 bit argument swapped.  */
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#define bswap_64(x) __bswap_64 (x)
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#endif /* byteswap.h */