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| author | Ian Lance Taylor <iant@google.com> | 2009-07-25 06:28:16 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2009-07-25 06:28:16 +0000 |
| commit | 330b922f19394dccb7f3d00ed9dd0d4223787a28 (patch) | |
| tree | d8fbeeedab192d77af35ac46c8c0b458e3da1838 /libiberty/crc32.c | |
| parent | 67a6e8167985001be8a50485a8cd8a0d0355a363 (diff) | |
| download | gcc-330b922f19394dccb7f3d00ed9dd0d4223787a28.zip gcc-330b922f19394dccb7f3d00ed9dd0d4223787a28.tar.gz gcc-330b922f19394dccb7f3d00ed9dd0d4223787a28.tar.bz2 | |
re PR bootstrap/40854 (Conflicting crc32 functions in libiberty and zlib)
include/:
PR bootstrap/40854
* libiberty.h (xcrc32): Rename from crc32.
libiberty/:
PR bootstrap/40854
* crc32.c (xcrc32): Rename from crc32.
From-SVN: r150075
Diffstat (limited to 'libiberty/crc32.c')
| -rw-r--r-- | libiberty/crc32.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/libiberty/crc32.c b/libiberty/crc32.c index 2171a3d..c12916b 100644 --- a/libiberty/crc32.c +++ b/libiberty/crc32.c @@ -150,12 +150,25 @@ protocol for the @samp{qCRC} command. In order to get the same results as gdb for a block of data, you must pass the first CRC parameter as @code{0xffffffff}. +This CRC can be specified as: + + Width : 32 + Poly : 0x04c11db7 + Init : parameter, typically 0xffffffff + RefIn : false + RefOut : false + XorOut : 0 + +This differs from the "standard" CRC-32 algorithm in that the values +are not reflected, and there is no final XOR value. These differences +make it easy to compose the values of multiple blocks. + @end deftypefn */ unsigned int -crc32 (const unsigned char *buf, int len, unsigned int init) +xcrc32 (const unsigned char *buf, int len, unsigned int init) { unsigned int crc = init; while (len--) |