webrtc/rtc_base/crc32.h
Philipp Hancke 97a3382bf6 IWYU rtc_base (misc)
using the usual
  find rtc_base -name "*.h" -o -name "*.cc" | xargs tools_webrtc/iwyu/apply-include-cleaner
followed by
  tools_webrtc/gn_check_autofix.py -C out/Default
followed by
  git cl format

and manual resolution or reverts of files that require a more
focused review.

Split from
  https://webrtc-review.googlesource.com/c/src/+/398903

Bug: webrtc:42226242
Change-Id: I9893da7f4da437d3a38277aaca7fafc8bf0b9bf3
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/399060
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@meta.com>
Cr-Commit-Position: refs/heads/main@{#45122}
2025-07-08 13:22:04 -07:00

37 lines
1.1 KiB
C++

/*
* Copyright 2012 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef RTC_BASE_CRC32_H_
#define RTC_BASE_CRC32_H_
#include <cstddef>
#include <cstdint>
#include "absl/strings/string_view.h"
namespace webrtc {
// Updates a CRC32 checksum with `len` bytes from `buf`. `initial` holds the
// checksum result from the previous update; for the first call, it should be 0.
uint32_t UpdateCrc32(uint32_t initial, const void* buf, size_t len);
// Computes a CRC32 checksum using `len` bytes from `buf`.
inline uint32_t ComputeCrc32(const void* buf, size_t len) {
return UpdateCrc32(0, buf, len);
}
inline uint32_t ComputeCrc32(absl::string_view str) {
return ComputeCrc32(str.data(), str.size());
}
} // namespace webrtc
#endif // RTC_BASE_CRC32_H_