xpcom/io/crc32c.h

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 #ifndef crc32c_h
   6 #define crc32c_h
   7
   8 #include <stdint.h>
   9 #include <stddef.h>
  10
  11 #ifdef __cplusplus
  12 extern "C" {
  13 #endif
  14
  15 // Compute a CRC32c as defined in RFC3720.  This is a different polynomial than
  16 // what is used in the crc for zlib, etc.  Typical usage to calculate a new CRC:
  17 //
  18 //    ComputeCrc32c(~0, buffer, bufferLength);
  19 //
  20 uint32_t ComputeCrc32c(uint32_t aCrc, const void* aBuf, size_t aSize);
  21
  22 #ifdef __cplusplus
  23 }  // extern "C"
  24 #endif
  25
  26 #endif  // crc32c_h