Boost C++ Libraries

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Boost Pointer Container Library

Class ptr_set_adapter

This class is used to build custom pointer containers with an underlying set-like container. The interface of the class is an extension of the interface from associative_ptr_container.

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Synopsis:

namespace boost
{
    template
    < 
        class Key, 
        class VoidPtrSet,
        class CloneAllocator = heap_clone_allocator 
    >
    class ptr_set_adapter 
    {
        
    public: // modifiers         
        std::pair<iterator,bool>  insert( Key* x );                         

    public: // pointer container requirements
        bool      transfer( iterator object, ptr_set_adapter& from );
        size_type transfer( iterator first, iterator last, ptr_set_adapter& from );
        template< class Range >
        size_type transfer( const Range& r, ptr_set_adapter& from );
        size_type transfer( ptr_set_adapter& from );

    }; //  class 'ptr_set_adapter'

} // namespace 'boost'  

Semantics

Semantics: modifiers

  • std::pair<iterator,bool> insert( key_type* x );

    • Requirements: x != 0
    • Effects: Takes ownership of x and insert it if there is no equivalent of it already. The bool part of the return value indicates insertion and the iterator points to the element with key x.
    • Throws: bad_pointer if x == 0
    • Exception safety: Strong guarantee

Semantics: pointer container requirements

  • bool transfer( iterator object, ptr_set_adapter& from );

    • Requirements: not from.empty()
    • Effects: Inserts the object defined by object into the container and remove it from from iff no equivalent object exists.
    • Returns: whether the object was transfered
    • Exception safety: Strong guarantee
  • void transfer( iterator first, iterator last, ptr__set_adapter& from );

    • Requirements: not from.empty()
    • Effects: Inserts the objects defined by the range [first,last) into the container and remove it from from. An object is only transferred if no equivalent object exists.
    • Returns: the number of transfered objects
    • Exception safety: Basic guarantee
  • template< class Range > void transfer( const Range& r, ptr_set_adapter& from );

    • Effects: return transfer( boost::begin(r), boost::end(r), from );
  • size_type transfer( ptr_set_adapter& from );

    • Effects: return transfer( from.begin(), from.end(), from );.
copyright:Thorsten Ottosen 2004-2005.