25 lines
778 B
C++
25 lines
778 B
C++
// Copyright (c) 2016 The WebM project authors. All Rights Reserved.
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//
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// Use of this source code is governed by a BSD-style license
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// that can be found in the LICENSE file in the root of the source
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// tree. An additional intellectual property rights grant can be found
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// in the file PATENTS. All contributing project authors may
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// be found in the AUTHORS file in the root of the source tree.
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#ifndef SRC_BIT_UTILS_H_
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#define SRC_BIT_UTILS_H_
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#include <cstdint>
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namespace webm {
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// Counts the number of leading zero bits.
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// For example:
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// assert(8 == CountLeadingZeros(0x00));
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// assert(4 == CountLeadingZeros(0x0f));
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// assert(0 == CountLeadingZeros(0xf0));
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std::uint8_t CountLeadingZeros(std::uint8_t value);
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} // namespace webm
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#endif // SRC_BIT_UTILS_H_
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