| // Copyright 2019 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef BASE_METRICS_CRC32_H_ |
| #define BASE_METRICS_CRC32_H_ |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include "base/base_export.h" |
| |
| namespace base { |
| |
| BASE_EXPORT extern const uint32_t kCrcTable[256]; |
| |
| // This provides a simple, fast CRC-32 calculation that can be used for checking |
| // the integrity of data. It is not a "secure" calculation! |sum| can start |
| // with any seed or be used to continue an operation began with previous data. |
| BASE_EXPORT uint32_t Crc32(uint32_t sum, const void* data, size_t size); |
| |
| } // namespace base |
| |
| #endif // BASE_METRICS_CRC32_H_ |
