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ebfb2c5e1f
This replaces bswap.h and integer.h. The tuklib module uses <byteswap.h> on GNU, <sys/endian.h> on *BSDs and <sys/byteorder.h> on Solaris, which may contain optimized code like inline assembly.
31 lines
787 B
C
31 lines
787 B
C
///////////////////////////////////////////////////////////////////////////////
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//
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/// \file crc_macros.h
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/// \brief Some endian-dependent macros for CRC32 and CRC64
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//
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// Author: Lasse Collin
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//
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// This file has been put into the public domain.
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// You can do whatever you want with this file.
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//
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///////////////////////////////////////////////////////////////////////////////
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#ifdef WORDS_BIGENDIAN
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# define A(x) ((x) >> 24)
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# define B(x) (((x) >> 16) & 0xFF)
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# define C(x) (((x) >> 8) & 0xFF)
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# define D(x) ((x) & 0xFF)
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# define S8(x) ((x) << 8)
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# define S32(x) ((x) << 32)
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#else
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# define A(x) ((x) & 0xFF)
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# define B(x) (((x) >> 8) & 0xFF)
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# define C(x) (((x) >> 16) & 0xFF)
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# define D(x) ((x) >> 24)
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# define S8(x) ((x) >> 8)
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# define S32(x) ((x) >> 32)
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#endif
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