| // Copyright 2008, Google Inc. |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| // |
| |
| // |
| // Deal with the differences between Microsoft and GNU implemenations |
| // of hash_map. Allows all platforms to use |base::hash_map| and |
| // |base::hash_set|. |
| // eg: |
| // base::hash_map<int> my_map; |
| // base::hash_set<int> my_set; |
| // |
| |
| #ifndef BASE_HASH_TABLES_H__ |
| #define BASE_HASH_TABLES_H__ |
| |
| #include "build/build_config.h" |
| |
| #if defined(COMPILER_MSVC) |
| #include <hash_map> |
| #include <hash_set> |
| namespace base { |
| using stdext::hash_map; |
| using stdext::hash_set; |
| } |
| #elif defined(COMPILER_GCC) |
| #include <ext/hash_map> |
| #include <ext/hash_set> |
| #include <tr1/functional> |
| namespace base { |
| using __gnu_cxx::hash_map; |
| using __gnu_cxx::hash_set; |
| } |
| |
| // Implement string hash functions so that strings of various flavors can |
| // be used as keys in STL maps and sets. |
| namespace __gnu_cxx { |
| |
| template<> |
| struct hash<wchar_t*> { |
| size_t operator()(const wchar_t* s) const { |
| return std::tr1::hash<const wchar_t*>()(s); |
| } |
| }; |
| |
| template<> |
| struct hash<const wchar_t*> { |
| size_t operator()(const wchar_t* s) const { |
| return std::tr1::hash<const wchar_t*>()(s); |
| } |
| }; |
| |
| template<> |
| struct hash<std::wstring> { |
| size_t operator()(const std::wstring& s) const { |
| return std::tr1::hash<std::wstring>()(s); |
| } |
| }; |
| |
| template<> |
| struct hash<const std::wstring> { |
| size_t operator()(const std::wstring& s) const { |
| return std::tr1::hash<std::wstring>()(s); |
| } |
| }; |
| |
| template<> |
| struct hash<std::string> { |
| size_t operator()(const std::string& s) const { |
| return std::tr1::hash<std::string>()(s); |
| } |
| }; |
| |
| template<> |
| struct hash<const std::string> { |
| size_t operator()(const std::string& s) const { |
| return std::tr1::hash<std::string>()(s); |
| } |
| }; |
| |
| } |
| |
| #endif |
| |
| #endif // BASE_HASH_TABLES_H__ |