globus_connect_gridftp_server  16.10
crc32c.h
1 // crc32c.h -- header for crc32c.c
2 // Copyright (C) 2015 Mark Adler
3 // See crc32c.c for the license.
4 
5 #include <stdint.h>
6 
7 // Return the CRC-32C of buf[0..len-1] given the starting CRC crc. This can be
8 // used to calculate the CRC of a sequence of bytes a chunk at a time, using
9 // the previously returned crc in the next call. The first call must be with
10 // crc == 0. crc32c() uses the Intel crc32 hardware instruction if available.
11 uint32_t crc32c(uint32_t crc, void const *buf, size_t len);
12 
13 // crc32c_sw() is the same, but does not use the hardware instruction, even if
14 // available.
15 uint32_t crc32c_sw(uint32_t crc, void const *buf, size_t len);