Chris@16: // Boost.Assign library
Chris@16: //
Chris@16: //  Copyright Thorsten Ottosen 2003-2005. Use, modification and
Chris@16: //  distribution is subject to the Boost Software License, Version
Chris@16: //  1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@16: //  http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: // For more information, see http://www.boost.org/libs/assign/
Chris@16: //
Chris@16: 
Chris@16: 
Chris@16: #ifndef BOOST_ASSIGN_PTR_LIST_OF_HPP
Chris@16: #define BOOST_ASSIGN_PTR_LIST_OF_HPP
Chris@16: 
Chris@101: #if defined(_MSC_VER)
Chris@16: # pragma once
Chris@16: #endif
Chris@16: 
Chris@16: #include <boost/assign/list_of.hpp>
Chris@16: #include <boost/type_traits/remove_const.hpp>
Chris@16: #include <boost/type_traits/remove_reference.hpp>
Chris@16: #include <boost/type_traits/is_reference.hpp>
Chris@16: #include <boost/static_assert.hpp>
Chris@16: #include <boost/type_traits/detail/yes_no_type.hpp>
Chris@16: #include <boost/type_traits/decay.hpp>
Chris@16: #include <boost/type_traits/is_array.hpp>
Chris@16: #include <boost/mpl/if.hpp>
Chris@16: #include <boost/ptr_container/ptr_vector.hpp>
Chris@16: 
Chris@16: #include <boost/preprocessor/repetition/enum_binary_params.hpp>
Chris@16: #include <boost/preprocessor/repetition/enum_params.hpp>
Chris@16: #include <boost/preprocessor/iteration/local.hpp>
Chris@16: 
Chris@16: namespace boost
Chris@16: {
Chris@16: 
Chris@16: namespace assign_detail
Chris@16: {
Chris@16:     /////////////////////////////////////////////////////////////////////////
Chris@16:     // Part 1: flexible and efficient interface
Chris@16:     /////////////////////////////////////////////////////////////////////////    
Chris@16: 
Chris@16:     template< class T > 
Chris@16:     class generic_ptr_list : 
Chris@16:         public converter< generic_ptr_list<T>,
Chris@16:                           BOOST_DEDUCED_TYPENAME boost::ptr_vector<T>::iterator >      
Chris@16:     {
Chris@16:     protected:
Chris@16:         typedef boost::ptr_vector<T>       impl_type;
Chris@16:         typedef std::auto_ptr<impl_type>   release_type;
Chris@16:         mutable impl_type                  values_;
Chris@16:         
Chris@16:     public:
Chris@16:         typedef BOOST_DEDUCED_TYPENAME impl_type::iterator         iterator;
Chris@16:         typedef iterator                                           const_iterator;
Chris@16:         typedef BOOST_DEDUCED_TYPENAME impl_type::value_type       value_type;
Chris@16:         typedef BOOST_DEDUCED_TYPENAME impl_type::size_type        size_type;
Chris@16:         typedef BOOST_DEDUCED_TYPENAME impl_type::difference_type  difference_type;
Chris@16:     public:
Chris@16:         generic_ptr_list() : values_( 32u )
Chris@16:         { }
Chris@16: 
Chris@16:         generic_ptr_list( release_type r ) : values_(r)
Chris@16:         { }
Chris@16: 
Chris@16:         release_type release()
Chris@16:         {
Chris@16:             return values_.release();
Chris@16:         }
Chris@16:         
Chris@16:     public:
Chris@16:         iterator begin() const       { return values_.begin(); }
Chris@16:         iterator end() const         { return values_.end(); }
Chris@16:         bool empty() const           { return values_.empty(); }
Chris@16:         size_type size() const       { return values_.size(); }
Chris@16: 
Chris@16:     public:
Chris@16: 
Chris@16:         operator impl_type() const
Chris@16:         {
Chris@16:             return values_;        
Chris@16:         }
Chris@16:  
Chris@16:         template< template<class,class,class> class Seq, class U,
Chris@16:                   class CA, class A > 
Chris@16:         operator Seq<U,CA,A>() const 
Chris@16:         {
Chris@16:             Seq<U,CA,A> result;
Chris@16:             result.transfer( result.end(), values_ );
Chris@16:             BOOST_ASSERT( empty() );
Chris@16:             return result;
Chris@16:         }
Chris@16: 
Chris@16:         template< class PtrContainer >
Chris@16:         std::auto_ptr<PtrContainer> convert( const PtrContainer* c ) const
Chris@16:         {
Chris@16:             std::auto_ptr<PtrContainer> res( new PtrContainer() );
Chris@16:             while( !empty() )
Chris@16:                 res->insert( res->end(), 
Chris@16:                              values_.pop_back().release() );
Chris@16:             return res;
Chris@16:         }
Chris@16: 
Chris@16:         template< class PtrContainer >
Chris@16:         std::auto_ptr<PtrContainer> to_container( const PtrContainer& c ) const
Chris@16:         {
Chris@16:             return convert( &c ); 
Chris@16:         }
Chris@16:         
Chris@16:     protected:
Chris@16:         void push_back( T* r ) { values_.push_back( r ); }
Chris@16:         
Chris@16:     public:
Chris@16:         generic_ptr_list& operator()()
Chris@16:         {
Chris@16:             this->push_back( new T() );
Chris@16:             return *this;
Chris@16:         }
Chris@16: 
Chris@16:         template< class U >
Chris@16:         generic_ptr_list& operator()( const U& u )
Chris@16:         {
Chris@16:             this->push_back( new T(u) );
Chris@16:             return *this;
Chris@16:         }
Chris@16:         
Chris@16:        
Chris@16: #ifndef BOOST_ASSIGN_MAX_PARAMS // use user's value
Chris@16: #define BOOST_ASSIGN_MAX_PARAMS 5
Chris@16: #endif        
Chris@16: #define BOOST_ASSIGN_MAX_PARAMETERS (BOOST_ASSIGN_MAX_PARAMS - 1) 
Chris@16: #define BOOST_ASSIGN_PARAMS1(n) BOOST_PP_ENUM_PARAMS(n, class U)
Chris@16: #define BOOST_ASSIGN_PARAMS2(n) BOOST_PP_ENUM_BINARY_PARAMS(n, U, const& u)
Chris@16: #define BOOST_ASSIGN_PARAMS3(n) BOOST_PP_ENUM_PARAMS(n, u)
Chris@16: 
Chris@16: #define BOOST_PP_LOCAL_LIMITS (1, BOOST_ASSIGN_MAX_PARAMETERS)
Chris@16: #define BOOST_PP_LOCAL_MACRO(n) \
Chris@16:     template< class U, BOOST_ASSIGN_PARAMS1(n) > \
Chris@16:     generic_ptr_list& operator()(U const& u, BOOST_ASSIGN_PARAMS2(n) ) \
Chris@16:     { \
Chris@16:         this->push_back( new T(u, BOOST_ASSIGN_PARAMS3(n))); \
Chris@16:         return *this; \
Chris@16:     } \
Chris@16:     /**/
Chris@16:         
Chris@16: #include BOOST_PP_LOCAL_ITERATE()
Chris@16: 
Chris@16:     }; // class 'generic_ptr_list'
Chris@16: 
Chris@16: } // namespace 'assign_detail'
Chris@16: 
Chris@16: namespace assign
Chris@16: {
Chris@16:     template< class T >
Chris@16:     inline assign_detail::generic_ptr_list<T>
Chris@16:     ptr_list_of()
Chris@16:     {
Chris@16:         return assign_detail::generic_ptr_list<T>()();
Chris@16:     }
Chris@16:     
Chris@16:     template< class T, class U >
Chris@16:     inline assign_detail::generic_ptr_list<T> 
Chris@16:     ptr_list_of( const U& t )
Chris@16:     {
Chris@16:         return assign_detail::generic_ptr_list<T>()( t );
Chris@16:     }
Chris@16: 
Chris@16: 
Chris@16: #define BOOST_PP_LOCAL_LIMITS (1, BOOST_ASSIGN_MAX_PARAMETERS)
Chris@16: #define BOOST_PP_LOCAL_MACRO(n) \
Chris@16:     template< class T, class U, BOOST_ASSIGN_PARAMS1(n) > \
Chris@16:     inline assign_detail::generic_ptr_list<T> \
Chris@16:     ptr_list_of(U const& u, BOOST_ASSIGN_PARAMS2(n) ) \
Chris@16:     { \
Chris@16:         return assign_detail::generic_ptr_list<T>()(u, BOOST_ASSIGN_PARAMS3(n)); \
Chris@16:     } \
Chris@16:     /**/
Chris@16:     
Chris@16: #include BOOST_PP_LOCAL_ITERATE()
Chris@16: 
Chris@16: 
Chris@16: } // namespace 'assign'
Chris@16: } // namespace 'boost'
Chris@16: 
Chris@16: 
Chris@16: #undef BOOST_ASSIGN_PARAMS1
Chris@16: #undef BOOST_ASSIGN_PARAMS2
Chris@16: #undef BOOST_ASSIGN_PARAMS3
Chris@16: #undef BOOST_ASSIGN_MAX_PARAMETERS
Chris@16: 
Chris@16: #endif