xref: /AOO41X/main/stlport/systemstl/hash_map (revision 31fa4ab05a9ca61b92b0d4232bdfe025ac7c19e2)
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2 *
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21
22#ifndef SYSTEM_STL_HASHMAP
23#define SYSTEM_STL_HASHMAP
24
25#ifdef HAVE_STL_INCLUDE_PATH
26    // TODO: use computed include file name
27    #include_next <unordered_map>
28#elif defined(__cplusplus) && (__cplusplus >= 201103L)
29    #include <unordered_map>
30#elif defined(_MSC_VER)
31    #include <../../VC/include/unordered_map>
32    #define STLP4_EMUBASE_NS ::std::tr1
33#else // fall back to boost/tr1
34    #include <boost/tr1/tr1/unordered_map>
35    #define STLP4_EMUBASE_NS ::boost
36#endif
37
38
39#ifndef NO_STLPORT4_EMULATION
40
41namespace std
42{
43#ifdef STLP4_EMUBASE_NS
44    using STLP4_EMUBASE_NS::hash;
45    using STLP4_EMUBASE_NS::unordered_map;
46    using STLP4_EMUBASE_NS::unordered_multimap;
47    #undef STLP4_EMUBASE_NS
48#endif
49
50
51template<
52    typename __K,
53    typename __T,
54    typename __H = hash<__K>,
55    typename __E = equal_to<__K>,
56    typename __A = allocator<pair<__K,__T> > >
57class hash_map
58:   public unordered_map<__K,__T,__H,__E,__A>
59{
60public:
61    typedef unordered_map<__K,__T,__H,__E,__A> _super;
62    typedef __T data_type;
63
64    hash_map( void) {}
65    hash_map( size_t n) : _super( n) {}
66
67#ifdef BOOST_TR1_UNORDERED_MAP_INCLUDED // workaround pre-BOOST_UNORDERED_USE_MOVE problem
68    // in derived classes the copy assignment operator can only be declared implicitly if
69    // its base class's assignment operator has the canonical signature.
70    // boost's assignment operators don't have this canonical signature when move-semantics are enabled
71    hash_map& operator=( const hash_map& r) { hash_map c(r); this->swap(c); return *this; }
72#endif
73
74private:
75    // setting the hasher dynamically is not supported in the emulation!
76    hash_map( size_t, const __H&, const __E& rE=__E(), const __A& rA=__A()); // not implemented
77};
78
79template<
80    typename __K,
81    typename __T,
82    typename __H = hash<__K>,
83    typename __E = equal_to<__K>,
84    typename __A = allocator<pair<__K,__T> > >
85class hash_multimap
86:   public unordered_multimap<__K,__T,__H,__E,__A>
87{
88public:
89    typedef unordered_multimap<__K,__T,__H,__E,__A> _super;
90    typedef __T data_type;
91
92    hash_multimap( void) {}
93    hash_multimap( size_t n) : _super( n) {}
94
95#ifdef BOOST_TR1_UNORDERED_MAP_INCLUDED // workaround pre-BOOST_UNORDERED_USE_MOVE problem
96    // in derived classes the copy assignment operator can only be declared implicitly if
97    // its base class's assignment operator has the canonical signature.
98    // boost's assignment operators don't have this canonical signature when move-semantics are enabled
99    hash_multimap& operator=( const hash_multimap& r) { hash_multimap c(r); this->swap(c); return *this; }
100#endif
101
102private:
103    // setting the hasher dynamically is not supported in the emulation!
104    hash_multimap( size_t, const __H&, const __E& rE=__E(), const __A& rA=__A()); // not implemented
105};
106
107} // namespace std
108
109#endif // NO_STLPORT4_EMULATION
110
111#endif
112
113