Boost C++ Libraries of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

Boost Pointer Container Library

Class ptr_list

A ptr_list<T> is a pointer container that uses an underlying std:list<void*> to store the pointers.




namespace boost

        class T,
        class CloneAllocator = heap_clone_allocator,
        class Allocator      = std::allocator<void*>
    class ptr_list : public ptr_sequence_adapter

    public: // modifiers
        void                push_front( T* x );
        template< class U >
        void                push_front( compatible-smart-ptr<U> x );
        auto_type           pop_front();

    public: // list operations
        void  reverse();

    }; // class 'ptr_list'

} // namespace 'boost'


Semantics: modifiers

  • void push_front( T* x );

    • Requirements: x != 0
    • Effects: Inserts the pointer into container and takes ownership of it
    • Throws: bad_pointer if x == 0
    • Exception safety: Strong guarantee
  • template< class U > void push_front( compatible-smart-ptr<U> x );

    • Effects: push_front( x.release() );
  • auto_type pop_front():

    • Requirements:not empty()
    • Effects: Removes the first element in the container
    • Postconditions: size() is one less
    • Throws: bad_ptr_container_operation if empty() == true
    • Exception safety: Strong guarantee

Semantics: list operations

  • void reverse();

    • Effects: reverses the underlying sequence
    • Throws: nothing

Copyright:Thorsten Ottosen 2004-2006. Use, modification and distribution is subject to the Boost Software License, Version 1.0 (see LICENSE_1_0.txt).