1 // Copyright (c) 2010 Google Inc. 2 // All rights reserved. 3 // 4 // Redistribution and use in source and binary forms, with or without 5 // modification, are permitted provided that the following conditions are 6 // met: 7 // 8 // * Redistributions of source code must retain the above copyright 9 // notice, this list of conditions and the following disclaimer. 10 // * Redistributions in binary form must reproduce the above 11 // copyright notice, this list of conditions and the following disclaimer 12 // in the documentation and/or other materials provided with the 13 // distribution. 14 // * Neither the name of Google Inc. nor the names of its 15 // contributors may be used to endorse or promote products derived from 16 // this software without specific prior written permission. 17 // 18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 30 // Include this file to use unordered_map and unordered_set. If tr1 31 // or C++11 is not available, you can switch to using hash_set and 32 // hash_map by defining BP_USE_HASH_SET. 33 34 #ifndef COMMON_UNORDERED_H_ 35 #define COMMON_UNORDERED_H_ 36 37 #if defined(BP_USE_HASH_SET) 38 #include <hash_map> 39 #include <hash_set> 40 41 // For hash<string>. 42 #include "util/hash/hash.h" 43 44 template <class T, class U, class H = __gnu_cxx::hash<T> > 45 struct unordered_map : public hash_map<T, U, H> {}; 46 template <class T, class H = __gnu_cxx::hash<T> > 47 struct unordered_set : public hash_set<T, H> {}; 48 49 #elif defined(_LIBCPP_VERSION) // c++11 50 #include <unordered_map> 51 #include <unordered_set> 52 using std::unordered_map; 53 using std::unordered_set; 54 55 #else // Fallback to tr1::unordered 56 #include <tr1/unordered_map> 57 #include <tr1/unordered_set> 58 using std::tr1::unordered_map; 59 using std::tr1::unordered_set; 60 #endif 61 62 #endif // COMMON_UNORDERED_H_ 63
