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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 03:10:08 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 03:10:08 +0000
commit5262a872f308b3b584c97d621992fb3877e392b8 (patch)
treeb956c322376141abeafe639bd72cfecdf16954b5 /src/liblzma/check/crc_macros.h
parentInitial commit. (diff)
downloadxz-utils-5262a872f308b3b584c97d621992fb3877e392b8.tar.xz
xz-utils-5262a872f308b3b584c97d621992fb3877e392b8.zip
Adding upstream version 5.6.1+really5.4.5.upstream/5.6.1+really5.4.5
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/liblzma/check/crc_macros.h')
-rw-r--r--src/liblzma/check/crc_macros.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/src/liblzma/check/crc_macros.h b/src/liblzma/check/crc_macros.h
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+++ b/src/liblzma/check/crc_macros.h
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+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file crc_macros.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