[857] | 1 | //
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| 2 | // Boost.Pointer Container
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| 3 | //
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| 4 | // Copyright Thorsten Ottosen 2003-2005. Use, modification and
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| 5 | // distribution is subject to the Boost Software License, Version
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| 6 | // 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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| 7 | // http://www.boost.org/LICENSE_1_0.txt)
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| 8 | //
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| 9 | // For more information, see http://www.boost.org/libs/ptr_container/
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| 10 | //
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| 11 |
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| 12 |
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| 13 | #ifndef BOOST_PTR_CONTAINER_DETAIL_ASSOCIATIVE_PTR_CONTAINER_HPP
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| 14 | #define BOOST_PTR_CONTAINER_DETAIL_ASSOCIATIVE_PTR_CONTAINER_HPP
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| 15 |
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| 16 | #if defined(_MSC_VER) && (_MSC_VER >= 1200)
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| 17 | # pragma once
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| 18 | #endif
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| 19 |
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| 20 | #include <boost/ptr_container/detail/reversible_ptr_container.hpp>
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| 21 |
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| 22 | namespace boost
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| 23 | {
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| 24 |
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| 25 | namespace ptr_container_detail
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| 26 | {
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| 27 | template
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| 28 | <
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| 29 | class Config,
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| 30 | class CloneAllocator
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| 31 | >
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| 32 | class associative_ptr_container :
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| 33 | public reversible_ptr_container<Config,CloneAllocator>
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| 34 | {
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| 35 | typedef reversible_ptr_container<Config,CloneAllocator>
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| 36 | base_type;
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| 37 |
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| 38 | typedef BOOST_DEDUCED_TYPENAME base_type::scoped_deleter
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| 39 | scoped_deleter;
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| 40 |
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| 41 | public: // typedefs
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| 42 | typedef BOOST_DEDUCED_TYPENAME Config::key_type
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| 43 | key_type;
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| 44 | typedef BOOST_DEDUCED_TYPENAME Config::key_compare
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| 45 | key_compare;
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| 46 | typedef BOOST_DEDUCED_TYPENAME Config::value_compare
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| 47 | value_compare;
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| 48 | typedef BOOST_DEDUCED_TYPENAME Config::iterator
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| 49 | iterator;
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| 50 | typedef BOOST_DEDUCED_TYPENAME Config::const_iterator
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| 51 | const_iterator;
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| 52 | typedef BOOST_DEDUCED_TYPENAME base_type::size_type
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| 53 | size_type;
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| 54 |
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| 55 | public: // foundation
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| 56 |
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| 57 | template< class Compare, class Allocator >
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| 58 | associative_ptr_container( const Compare& comp,
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| 59 | const Allocator& a )
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| 60 | : base_type( comp, a )
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| 61 | { }
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| 62 |
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| 63 | template< class InputIterator, class Compare, class Allocator >
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| 64 | associative_ptr_container( InputIterator first, InputIterator last,
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| 65 | const Compare& comp,
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| 66 | const Allocator& a )
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| 67 | : base_type( first, last, comp, a )
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| 68 | { }
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| 69 |
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| 70 | template< class PtrContainer >
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| 71 | associative_ptr_container( std::auto_ptr<PtrContainer> r )
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| 72 | : base_type( r, key_compare() )
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| 73 | { }
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| 74 |
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| 75 | template< class PtrContainer >
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| 76 | void operator=( std::auto_ptr<PtrContainer> r )
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| 77 | {
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| 78 | base_type::operator=( r );
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| 79 | }
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| 80 |
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| 81 | public: // associative container interface
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| 82 | key_compare key_comp() const
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| 83 | {
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| 84 | return this->c_private().key_comp();
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| 85 | }
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| 86 |
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| 87 | value_compare value_comp() const
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| 88 | {
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| 89 | return this->c_private().value_comp();
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| 90 | }
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| 91 |
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| 92 | iterator erase( iterator before ) // nothrow
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| 93 | {
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| 94 | BOOST_ASSERT( !this->empty() );
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| 95 | BOOST_ASSERT( before != this->end() );
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| 96 |
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| 97 | this->remove( before ); // nothrow
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| 98 | iterator res( before ); // nothrow
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| 99 | ++res; // nothrow
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| 100 | this->c_private().erase( before.base() ); // nothrow
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| 101 | return res; // nothrow
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| 102 | }
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| 103 |
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| 104 | size_type erase( const key_type& x ) // nothrow
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| 105 | {
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| 106 | BOOST_ASSERT( !this->empty() );
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| 107 | iterator i = find( x ); // nothrow
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| 108 | if( i == this->end() ) // nothrow
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| 109 | return 0; // nothrow
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| 110 | this->remove( i ); // nothrow
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| 111 | return this->c_private().erase( i.base() ); // nothrow
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| 112 | }
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| 113 |
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| 114 | iterator erase( iterator first,
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| 115 | iterator last ) // nothrow
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| 116 | {
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| 117 | BOOST_ASSERT( !this->empty() );
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| 118 |
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| 119 | iterator res( last ); // nothrow
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| 120 | if( res != this->end() )
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| 121 | ++res; // nothrow
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| 122 |
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| 123 | this->remove( first, last ); // nothrow
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| 124 | this->c_private().erase( first.base(), last.base() );// nothrow
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| 125 | return res; // nothrow
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| 126 | }
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| 127 |
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| 128 | protected:
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| 129 |
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| 130 | void multi_transfer( iterator object,
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| 131 | associative_ptr_container& from ) // strong
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| 132 | {
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| 133 | BOOST_ASSERT( &from != this );
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| 134 | BOOST_ASSERT( !from.empty() && "Cannot transfer from empty container" );
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| 135 |
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| 136 | this->c_private().insert( *object.base() ); // strong
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| 137 | from.c_private().erase( object.base() ); // nothrow
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| 138 | }
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| 139 |
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| 140 | size_type multi_transfer( iterator first,
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| 141 | iterator last,
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| 142 | associative_ptr_container& from ) // basic
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| 143 | {
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| 144 | BOOST_ASSERT( &from != this );
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| 145 | BOOST_ASSERT( !from.empty() && "Cannot transfer from empty container" );
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| 146 |
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| 147 | size_type res = 0;
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| 148 | for( ; first != last; )
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| 149 | {
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| 150 | BOOST_ASSERT( first != from.end() );
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| 151 | this->c_private().insert( *first.base() ); // strong
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| 152 | iterator to_delete( first );
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| 153 | ++first;
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| 154 | from.c_private().erase( to_delete.base() ); // nothrow
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| 155 | ++res;
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| 156 | }
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| 157 |
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| 158 | return res;
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| 159 | }
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| 160 |
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| 161 | bool single_transfer( iterator object,
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| 162 | associative_ptr_container& from ) // strong
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| 163 | {
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| 164 | BOOST_ASSERT( &from != this );
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| 165 | BOOST_ASSERT( !from.empty() && "Cannot transfer from empty container" );
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| 166 |
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| 167 | std::pair<BOOST_DEDUCED_TYPENAME base_type::ptr_iterator,bool> p =
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| 168 | this->c_private().insert( *object.base() ); // strong
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| 169 | if( p.second )
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| 170 | from.c_private().erase( object.base() ); // nothrow
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| 171 |
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| 172 | return p.second;
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| 173 | }
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| 174 |
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| 175 | size_type single_transfer( iterator first,
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| 176 | iterator last,
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| 177 | associative_ptr_container& from ) // basic
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| 178 | {
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| 179 | BOOST_ASSERT( &from != this );
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| 180 | BOOST_ASSERT( !from.empty() && "Cannot transfer from empty container" );
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| 181 |
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| 182 | size_type res = 0;
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| 183 | for( ; first != last; )
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| 184 | {
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| 185 | BOOST_ASSERT( first != from.end() );
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| 186 | std::pair<BOOST_DEDUCED_TYPENAME base_type::ptr_iterator,bool> p =
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| 187 | this->c_private().insert( *first.base() ); // strong
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| 188 | iterator to_delete( first );
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| 189 | ++first;
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| 190 | if( p.second )
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| 191 | {
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| 192 | from.c_private().erase( to_delete.base() ); // nothrow
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| 193 | ++res;
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| 194 | }
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| 195 | }
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| 196 | return res;
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| 197 | }
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| 198 |
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| 199 | }; // class 'associative_ptr_container'
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| 200 |
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| 201 | } // namespace 'ptr_container_detail'
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| 202 |
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| 203 | } // namespace 'boost'
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| 204 |
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| 205 |
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| 206 | #endif
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