32 lines
786 B
C++
32 lines
786 B
C++
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef BASE_HASH_H_
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#define BASE_HASH_H_
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#include <string>
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#include "base/base_export.h"
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#include "base/basictypes.h"
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namespace base {
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// From http://www.azillionmonkeys.com/qed/hash.html
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// This is the hash used on WebCore/platform/stringhash
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BASE_EXPORT uint32 SuperFastHash(const char * data, int len);
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inline uint32 Hash(const char* key, size_t length) {
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return SuperFastHash(key, static_cast<int>(length));
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}
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inline uint32 Hash(const std::string& key) {
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if (key.empty())
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return 0;
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return SuperFastHash(key.data(), static_cast<int>(key.size()));
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}
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} // namespace base
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#endif // BASE_HASH_H_
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