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1 | // Boost.Assign library |
2 | // | |
3 | // Copyright Thorsten Ottosen 2003-2005. 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 | ||
12 | #ifndef BOOST_ASSIGN_PTR_LIST_OF_HPP | |
13 | #define BOOST_ASSIGN_PTR_LIST_OF_HPP | |
14 | ||
15 | #if defined(_MSC_VER) | |
16 | # pragma once | |
17 | #endif | |
18 | ||
19 | #include <boost/assign/list_of.hpp> | |
20 | #include <boost/type_traits/remove_const.hpp> | |
21 | #include <boost/type_traits/remove_reference.hpp> | |
22 | #include <boost/type_traits/is_reference.hpp> | |
23 | #include <boost/static_assert.hpp> | |
24 | #include <boost/type_traits/detail/yes_no_type.hpp> | |
25 | #include <boost/type_traits/decay.hpp> | |
26 | #include <boost/type_traits/is_array.hpp> | |
27 | #include <boost/mpl/if.hpp> | |
28 | #include <boost/ptr_container/ptr_vector.hpp> | |
29 | ||
30 | #include <boost/preprocessor/repetition/enum_binary_params.hpp> | |
31 | #include <boost/preprocessor/repetition/enum_params.hpp> | |
32 | #include <boost/preprocessor/iteration/local.hpp> | |
33 | ||
34 | namespace boost | |
35 | { | |
36 | ||
37 | namespace assign_detail | |
38 | { | |
39 | ///////////////////////////////////////////////////////////////////////// | |
40 | // Part 1: flexible and efficient interface | |
41 | ///////////////////////////////////////////////////////////////////////// | |
42 | ||
43 | template< class T > | |
44 | class generic_ptr_list : | |
45 | public converter< generic_ptr_list<T>, | |
46 | BOOST_DEDUCED_TYPENAME boost::ptr_vector<T>::iterator > | |
47 | { | |
48 | protected: | |
49 | typedef boost::ptr_vector<T> impl_type; | |
50 | typedef std::auto_ptr<impl_type> release_type; | |
51 | mutable impl_type values_; | |
52 | ||
53 | public: | |
54 | typedef BOOST_DEDUCED_TYPENAME impl_type::iterator iterator; | |
55 | typedef iterator const_iterator; | |
56 | typedef BOOST_DEDUCED_TYPENAME impl_type::value_type value_type; | |
57 | typedef BOOST_DEDUCED_TYPENAME impl_type::size_type size_type; | |
58 | typedef BOOST_DEDUCED_TYPENAME impl_type::difference_type difference_type; | |
59 | public: | |
60 | generic_ptr_list() : values_( 32u ) | |
61 | { } | |
62 | ||
63 | generic_ptr_list( release_type r ) : values_(r) | |
64 | { } | |
65 | ||
66 | release_type release() | |
67 | { | |
68 | return values_.release(); | |
69 | } | |
70 | ||
71 | public: | |
72 | iterator begin() const { return values_.begin(); } | |
73 | iterator end() const { return values_.end(); } | |
74 | bool empty() const { return values_.empty(); } | |
75 | size_type size() const { return values_.size(); } | |
76 | ||
77 | public: | |
78 | ||
79 | operator impl_type() const | |
80 | { | |
81 | return values_; | |
82 | } | |
83 | ||
84 | template< template<class,class,class> class Seq, class U, | |
85 | class CA, class A > | |
86 | operator Seq<U,CA,A>() const | |
87 | { | |
88 | Seq<U,CA,A> result; | |
89 | result.transfer( result.end(), values_ ); | |
90 | BOOST_ASSERT( empty() ); | |
91 | return result; | |
92 | } | |
93 | ||
94 | template< class PtrContainer > | |
95 | std::auto_ptr<PtrContainer> convert( const PtrContainer* c ) const | |
96 | { | |
97 | std::auto_ptr<PtrContainer> res( new PtrContainer() ); | |
98 | while( !empty() ) | |
99 | res->insert( res->end(), | |
100 | values_.pop_back().release() ); | |
101 | return res; | |
102 | } | |
103 | ||
104 | template< class PtrContainer > | |
105 | std::auto_ptr<PtrContainer> to_container( const PtrContainer& c ) const | |
106 | { | |
107 | return convert( &c ); | |
108 | } | |
109 | ||
110 | protected: | |
111 | void push_back( T* r ) { values_.push_back( r ); } | |
112 | ||
113 | public: | |
114 | generic_ptr_list& operator()() | |
115 | { | |
116 | this->push_back( new T() ); | |
117 | return *this; | |
118 | } | |
119 | ||
120 | template< class U > | |
121 | generic_ptr_list& operator()( const U& u ) | |
122 | { | |
123 | this->push_back( new T(u) ); | |
124 | return *this; | |
125 | } | |
126 | ||
127 | ||
128 | #ifndef BOOST_ASSIGN_MAX_PARAMS // use user's value | |
129 | #define BOOST_ASSIGN_MAX_PARAMS 5 | |
130 | #endif | |
131 | #define BOOST_ASSIGN_MAX_PARAMETERS (BOOST_ASSIGN_MAX_PARAMS - 1) | |
132 | #define BOOST_ASSIGN_PARAMS1(n) BOOST_PP_ENUM_PARAMS(n, class U) | |
133 | #define BOOST_ASSIGN_PARAMS2(n) BOOST_PP_ENUM_BINARY_PARAMS(n, U, const& u) | |
134 | #define BOOST_ASSIGN_PARAMS3(n) BOOST_PP_ENUM_PARAMS(n, u) | |
135 | ||
136 | #define BOOST_PP_LOCAL_LIMITS (1, BOOST_ASSIGN_MAX_PARAMETERS) | |
137 | #define BOOST_PP_LOCAL_MACRO(n) \ | |
138 | template< class U, BOOST_ASSIGN_PARAMS1(n) > \ | |
139 | generic_ptr_list& operator()(U const& u, BOOST_ASSIGN_PARAMS2(n) ) \ | |
140 | { \ | |
141 | this->push_back( new T(u, BOOST_ASSIGN_PARAMS3(n))); \ | |
142 | return *this; \ | |
143 | } \ | |
144 | /**/ | |
145 | ||
146 | #include BOOST_PP_LOCAL_ITERATE() | |
147 | ||
148 | }; // class 'generic_ptr_list' | |
149 | ||
150 | } // namespace 'assign_detail' | |
151 | ||
152 | namespace assign | |
153 | { | |
154 | template< class T > | |
155 | inline assign_detail::generic_ptr_list<T> | |
156 | ptr_list_of() | |
157 | { | |
158 | return assign_detail::generic_ptr_list<T>()(); | |
159 | } | |
160 | ||
161 | template< class T, class U > | |
162 | inline assign_detail::generic_ptr_list<T> | |
163 | ptr_list_of( const U& t ) | |
164 | { | |
165 | return assign_detail::generic_ptr_list<T>()( t ); | |
166 | } | |
167 | ||
168 | ||
169 | #define BOOST_PP_LOCAL_LIMITS (1, BOOST_ASSIGN_MAX_PARAMETERS) | |
170 | #define BOOST_PP_LOCAL_MACRO(n) \ | |
171 | template< class T, class U, BOOST_ASSIGN_PARAMS1(n) > \ | |
172 | inline assign_detail::generic_ptr_list<T> \ | |
173 | ptr_list_of(U const& u, BOOST_ASSIGN_PARAMS2(n) ) \ | |
174 | { \ | |
175 | return assign_detail::generic_ptr_list<T>()(u, BOOST_ASSIGN_PARAMS3(n)); \ | |
176 | } \ | |
177 | /**/ | |
178 | ||
179 | #include BOOST_PP_LOCAL_ITERATE() | |
180 | ||
181 | ||
182 | } // namespace 'assign' | |
183 | } // namespace 'boost' | |
184 | ||
185 | ||
186 | #undef BOOST_ASSIGN_PARAMS1 | |
187 | #undef BOOST_ASSIGN_PARAMS2 | |
188 | #undef BOOST_ASSIGN_PARAMS3 | |
189 | #undef BOOST_ASSIGN_MAX_PARAMETERS | |
190 | ||
191 | #endif |