| // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| // |
| |
| // |
| // 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) |
| // This is a hack to disable the gcc 4.4 warning about hash_map and hash_set |
| // being deprecated. We can get rid of this when we upgrade to VS2008 and we |
| // can use <tr1/unordered_map> and <tr1/unordered_set>. |
| #ifdef __DEPRECATED |
| #define CHROME_OLD__DEPRECATED __DEPRECATED |
| #undef __DEPRECATED |
| #endif |
| |
| #include <ext/hash_map> |
| #include <ext/hash_set> |
| |
| #ifdef CHROME_OLD__DEPRECATED |
| #define __DEPRECATED CHROME_OLD__DEPRECATED |
| #undef CHROME_OLD__DEPRECATED |
| #endif |
| |
| #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); |
| } |
| }; |
| |
| template<> |
| struct hash<long long> { |
| size_t operator()(long long i) const { |
| return std::tr1::hash<long>()((long) i); |
| } |
| }; |
| |
| } |
| |
| #endif |
| |
| #endif // BASE_HASH_TABLES_H__ |