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| author | Hans Jansen <hansjansen162@outlook.com> | 2023-10-12 19:07:50 +0200 |
|---|---|---|
| committer | Jia Tan <jiat0218@gmail.com> | 2023-10-13 20:54:05 +0800 |
| commit | 233885a437f8b55a5c8442984ebc0aaa579e92de (patch) | |
| tree | ef1c54ff46a79c3a4f87accfdfb185f5497260ee /src/liblzma/check/crc_common.h | |
| parent | CI: Bump and ref actions by commit SHA in windows-ci.yml (diff) | |
| download | xz-233885a437f8b55a5c8442984ebc0aaa579e92de.tar.xz | |
liblzma: Rename crc_macros.h to crc_common.h.
Diffstat (limited to 'src/liblzma/check/crc_common.h')
| -rw-r--r-- | src/liblzma/check/crc_common.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/liblzma/check/crc_common.h b/src/liblzma/check/crc_common.h new file mode 100644 index 00000000..f3ee205d --- /dev/null +++ b/src/liblzma/check/crc_common.h @@ -0,0 +1,30 @@ +/////////////////////////////////////////////////////////////////////////////// +// +/// \file crc_common.h +/// \brief Some endian-dependent macros for CRC32 and CRC64 +// +// Author: Lasse Collin +// +// This file has been put into the public domain. +// You can do whatever you want with this file. +// +/////////////////////////////////////////////////////////////////////////////// + +#ifdef WORDS_BIGENDIAN +# define A(x) ((x) >> 24) +# define B(x) (((x) >> 16) & 0xFF) +# define C(x) (((x) >> 8) & 0xFF) +# define D(x) ((x) & 0xFF) + +# define S8(x) ((x) << 8) +# define S32(x) ((x) << 32) + +#else +# define A(x) ((x) & 0xFF) +# define B(x) (((x) >> 8) & 0xFF) +# define C(x) (((x) >> 16) & 0xFF) +# define D(x) ((x) >> 24) + +# define S8(x) ((x) >> 8) +# define S32(x) ((x) >> 32) +#endif |