OW_HashMap.hpp

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00002 * Copyright (C) 2001-2004 Vintela, Inc. All rights reserved.
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00030 
00035 #ifndef OW_HASH_MAP_HPP_INCLUDE_GUARD_
00036 #define OW_HASH_MAP_HPP_INCLUDE_GUARD_
00037 #include "OW_config.h"
00038 #ifdef OW_HAVE_HASH_MAP
00039    #include <hash_map> // hash_map is better for the cache than OW_SortedVectorMap
00040    #define OW_HASH_MAP_NS std
00041    #define HashMap std::hash_map
00042 #elif OW_HAVE_EXT_HASH_MAP
00043    #include <ext/hash_map> // hash_map is better for the cache than OW_SortedVectorMap
00044    #define OW_HASH_MAP_NS __gnu_cxx
00045    #define HashMap __gnu_cxx::hash_map
00046 #else
00047    #include "OW_SortedVectorMap.hpp"
00048    #define OW_HASH_MAP_NS OW_NAMESPACE
00049    #define HashMap SortedVectorMap
00050 #endif
00051 #ifndef OW_HASH_SPECIALIZED_INCLUDE_GUARD_
00052 #define OW_HASH_SPECIALIZED_INCLUDE_GUARD_
00053 #if defined(OW_HAVE_HASH_MAP) || defined(OW_HAVE_EXT_HASH_MAP)
00054 #include "OW_String.hpp"
00055 
00056 // need to specialize hash
00057 namespace OW_HASH_MAP_NS
00058 {
00059 template<> struct hash<OW_NAMESPACE::String>
00060 {
00061    size_t operator()(const OW_NAMESPACE::String& s) const
00062    {
00063       return hash<const char*>()(s.c_str());
00064    }
00065 };
00066 }
00067 #endif
00068 #endif
00069 #undef OW_HASH_MAP_NS
00070 #endif

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