xref: /trunk/main/stlport/systemstl/hash_map (revision 71fb1a33)
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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(_MSC_VER)
29	#include <../../VC/include/unordered_map>
30	#define STLP4_EMUBASE_NS ::std::tr1
31#else // fall back to boost/tr1
32	#include <boost/tr1/tr1/unordered_map>
33	#define STLP4_EMUBASE_NS ::boost
34#endif
35
36
37#ifndef NO_STLPORT4_EMULATION
38
39namespace std
40{
41#ifdef STLP4_EMUBASE_NS
42	using STLP4_EMUBASE_NS::hash;
43	using STLP4_EMUBASE_NS::unordered_map;
44	using STLP4_EMUBASE_NS::unordered_multimap;
45	#undef STLP4_EMUBASE_NS
46#endif
47
48
49template<
50	typename __K,
51	typename __T,
52	typename __H = hash<__K>,
53	typename __E = equal_to<__K>,
54	typename __A = allocator<pair<__K,__T> > >
55class hash_map
56:	public unordered_map<__K,__T,__H,__E,__A>
57{
58public:
59	typedef unordered_map<__K,__T,__H,__E,__A> _super;
60	typedef __T data_type;
61
62	hash_map( void) {}
63	hash_map( size_t n) : _super( n) {}
64
65#ifdef BOOST_TR1_UNORDERED_MAP_INCLUDED // workaround pre-BOOST_UNORDERED_USE_MOVE problem
66	// in derived classes the copy assignment operator can only be declared implicitly if
67	// its base class's assignment operator has the canonical signature.
68	// boost's assignment operators don't have this canonical signature when move-semantics are enabled
69	hash_map& operator=( const hash_map& r) { hash_map c(r); this->swap(c); return *this; }
70#endif
71
72private:
73	// setting the hasher dynamically is not supported in the emulation!
74	hash_map( size_t, const __H&, const __E& rE=__E(), const __A& rA=__A()); // not implemented
75};
76
77template<
78	typename __K,
79	typename __T,
80	typename __H = hash<__K>,
81	typename __E = equal_to<__K>,
82	typename __A = allocator<pair<__K,__T> > >
83class hash_multimap
84:	public unordered_multimap<__K,__T,__H,__E,__A>
85{
86public:
87	typedef unordered_multimap<__K,__T,__H,__E,__A> _super;
88	typedef __T data_type;
89
90	hash_multimap( void) {}
91	hash_multimap( size_t n) : _super( n) {}
92
93#ifdef BOOST_TR1_UNORDERED_MAP_INCLUDED // workaround pre-BOOST_UNORDERED_USE_MOVE problem
94	// in derived classes the copy assignment operator can only be declared implicitly if
95	// its base class's assignment operator has the canonical signature.
96	// boost's assignment operators don't have this canonical signature when move-semantics are enabled
97	hash_multimap& operator=( const hash_multimap& r) { hash_multimap c(r); this->swap(c); return *this; }
98#endif
99
100private:
101	// setting the hasher dynamically is not supported in the emulation!
102	hash_multimap( size_t, const __H&, const __E& rE=__E(), const __A& rA=__A()); // not implemented
103};
104
105} // namespace std
106
107#endif // NO_STLPORT4_EMULATION
108
109#endif
110
111