| // Copyright (c) 2016 The WebM 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 SRC_BIT_UTILS_H_ |
| #define SRC_BIT_UTILS_H_ |
| |
| #include <cstdint> |
| |
| namespace webm { |
| |
| // Counts the number of leading zero bits. |
| // For example: |
| // assert(8 == CountLeadingZeros(0x00)); |
| // assert(4 == CountLeadingZeros(0x0f)); |
| // assert(0 == CountLeadingZeros(0xf0)); |
| std::uint8_t CountLeadingZeros(std::uint8_t value); |
| |
| } // namespace webm |
| |
| #endif // SRC_BIT_UTILS_H_ |