1 // Copyright 2017 The CRC32C Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. See the AUTHORS file for names of contributors. 4 5 #ifndef CRC32C_CRC32C_INTERNAL_H_ 6 #define CRC32C_CRC32C_INTERNAL_H_ 7 8 // Internal functions that may change between releases. 9 10 #include <cstddef> 11 #include <cstdint> 12 13 namespace crc32c { 14 15 // Un-accelerated implementation that works on all CPUs. 16 uint32_t ExtendPortable(uint32_t crc, const uint8_t* data, size_t count); 17 18 // CRCs are pre- and post- conditioned by xoring with all ones. 19 static constexpr const uint32_t kCRC32Xor = static_cast<uint32_t>(0xffffffffU); 20 21 } // namespace crc32c 22 23 #endif // CRC32C_CRC32C_INTERNAL_H_ 24