blocxx

HashMap.hpp

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00001 /*******************************************************************************
00002 * Copyright (C) 2005, Vintela, Inc. All rights reserved.
00003 * Copyright (C) 2006, Novell, Inc. All rights reserved.
00004 * 
00005 * Redistribution and use in source and binary forms, with or without
00006 * modification, are permitted provided that the following conditions are met:
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00008 *     * Redistributions of source code must retain the above copyright notice,
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00032 
00033 
00038 #ifndef BLOCXX_HASH_MAP_HPP_INCLUDE_GUARD_
00039 #define BLOCXX_HASH_MAP_HPP_INCLUDE_GUARD_
00040 #include "blocxx/BLOCXX_config.h"
00041 #ifdef BLOCXX_HAVE_HASH_MAP
00042    #include <hash_map> // hash_map is better for the cache than BLOCXX_SortedVectorMap
00043    #define BLOCXX_HASH_MAP_NS std
00044    #define HashMap std::hash_map
00045 #elif BLOCXX_HAVE_EXT_HASH_MAP
00046    #include <ext/hash_map> // hash_map is better for the cache than BLOCXX_SortedVectorMap
00047    #define BLOCXX_HASH_MAP_NS __gnu_cxx
00048    #define HashMap __gnu_cxx::hash_map
00049 #else
00050    #include "blocxx/SortedVectorMap.hpp"
00051    #define BLOCXX_HASH_MAP_NS BLOCXX_NAMESPACE
00052    #define HashMap SortedVectorMap
00053 #endif
00054 #ifndef BLOCXX_HASH_SPECIALIZED_INCLUDE_GUARD_
00055 #define BLOCXX_HASH_SPECIALIZED_INCLUDE_GUARD_
00056 #if defined(BLOCXX_HAVE_HASH_MAP) || defined(BLOCXX_HAVE_EXT_HASH_MAP)
00057 #include "blocxx/String.hpp"
00058 
00059 // need to specialize hash
00060 namespace BLOCXX_HASH_MAP_NS
00061 {
00062 template<> struct hash<BLOCXX_NAMESPACE::String>
00063 {
00064    size_t operator()(const BLOCXX_NAMESPACE::String& s) const
00065    {
00066       return hash<const char*>()(s.c_str());
00067    }
00068 };
00069 }
00070 #endif
00071 #endif
00072 #undef BLOCXX_HASH_MAP_NS
00073 #endif