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1// Boost.Assign library
2//
3// Copyright Thorsten Ottosen 2006. Use, modification and
4// distribution is subject to the Boost Software License, Version
5// 1.0. (See accompanying file LICENSE_1_0.txt or copy at
6// http://www.boost.org/LICENSE_1_0.txt)
7//
8// For more information, see http://www.boost.org/libs/assign/
9//
10
11#ifndef BOOST_ASSIGN_PTR_CONTAINER_PTR_MAP_INSERTER_HPP
12#define BOOST_ASSIGN_PTR_CONTAINER_PTR_MAP_INSERTER_HPP
13
14#if defined(_MSC_VER)
15# pragma once
16#endif
17
18#include <boost/assign/list_inserter.hpp>
19#include <boost/type_traits/remove_reference.hpp>
20#include <boost/type_traits/remove_pointer.hpp>
21
22namespace boost
23{
24
25namespace assign
26{
27 template< class PtrMap, class Obj >
28 class ptr_map_inserter
29 {
30 typedef BOOST_DEDUCED_TYPENAME
31 remove_pointer< BOOST_DEDUCED_TYPENAME
32 remove_reference<Obj>::type >::type
33 obj_type;
34 typedef BOOST_DEDUCED_TYPENAME PtrMap::key_type
35 key_type;
36
37 public:
38
39 ptr_map_inserter( PtrMap& m ) : m_( m )
40 {}
41
42 template< class Key >
43 ptr_map_inserter& operator()( const Key& t )
44 {
45 key_type k(t);
46 m_.insert( k, new obj_type );
47 return *this;
48 }
49
50#ifndef BOOST_ASSIGN_MAX_PARAMS // use user's value
51#define BOOST_ASSIGN_MAX_PARAMS 6
52#endif
53#define BOOST_ASSIGN_MAX_PARAMETERS (BOOST_ASSIGN_MAX_PARAMS - 1)
54#define BOOST_ASSIGN_PARAMS1(n) BOOST_PP_ENUM_PARAMS(n, class T)
55#define BOOST_ASSIGN_PARAMS2(n) BOOST_PP_ENUM_BINARY_PARAMS(n, T, const& t)
56#define BOOST_ASSIGN_PARAMS3(n) BOOST_PP_ENUM_PARAMS(n, t)
57
58#define BOOST_PP_LOCAL_LIMITS (1, BOOST_ASSIGN_MAX_PARAMETERS)
59#define BOOST_PP_LOCAL_MACRO(n) \
60 template< class T, BOOST_ASSIGN_PARAMS1(n) > \
61 ptr_map_inserter& operator()( const T& t, BOOST_ASSIGN_PARAMS2(n) ) \
62 { \
63 key_type k(t); \
64 m_.insert( k, new obj_type( BOOST_ASSIGN_PARAMS3(n) ) ); \
65 return *this; \
66 } \
67 /**/
68
69#include BOOST_PP_LOCAL_ITERATE()
70
71 private:
72
73 ptr_map_inserter& operator=( const ptr_map_inserter& );
74 PtrMap& m_;
75 };
76
77 template< class PtrMap >
78 inline ptr_map_inserter< PtrMap, typename PtrMap::mapped_reference >
79 ptr_map_insert( PtrMap& m )
80 {
81 return ptr_map_inserter< PtrMap, typename PtrMap::mapped_reference >( m );
82 }
83
84#ifndef BOOST_NO_FUNCTION_TEMPLATE_ORDERING
85
86 template< class T, class PtrMap >
87 inline ptr_map_inserter< PtrMap, T >
88 ptr_map_insert( PtrMap& m )
89 {
90 return ptr_map_inserter< PtrMap, T >( m );
91 }
92
93#endif
94
95} // namespace 'assign'
96} // namespace 'boost'
97
98#undef BOOST_ASSIGN_PARAMS1
99#undef BOOST_ASSIGN_PARAMS2
100#undef BOOST_ASSIGN_PARAMS3
101#undef BOOST_ASSIGN_MAX_PARAMETERS
102
103#endif