kicad/include/boost/ptr_container/ptr_inserter.hpp

259 lines
6.9 KiB
C++

//
// Boost.Pointer Container
//
// Copyright Thorsten Ottosen 2008. Use, modification and
// distribution is subject to the Boost Software License, Version
// 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// For more information, see http://www.boost.org/libs/ptr_container/
//
#ifndef BOOST_PTR_CONTAINER_PTR_INSERTER_HPP
#define BOOST_PTR_CONTAINER_PTR_INSERTER_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
#pragma once
#endif
#include <boost/config.hpp>
#include <iterator>
#include <memory>
namespace boost
{
namespace ptr_container
{
template< class PtrContainer >
class ptr_back_insert_iterator;
template< class PtrContainer >
class ptr_front_insert_iterator;
template< class PtrContainer >
class ptr_insert_iterator;
template< class PtrContainer >
ptr_back_insert_iterator<PtrContainer>
ptr_back_inserter( PtrContainer& cont );
template< class PtrContainer >
ptr_front_insert_iterator<PtrContainer>
ptr_front_inserter( PtrContainer& cont );
template< class PtrContainer >
ptr_insert_iterator<PtrContainer>
ptr_inserter( PtrContainer& cont, typename PtrContainer::iterator before );
//////////////////////////////////////////////////////////////////////////
// Implementation
//////////////////////////////////////////////////////////////////////////
template< class PtrContainer >
class ptr_back_insert_iterator :
public std::iterator<std::output_iterator_tag,void,void,void,void>
{
public:
typedef PtrContainer container_type;
public:
explicit ptr_back_insert_iterator( PtrContainer& cont )
: container(&cont)
{ }
ptr_back_insert_iterator&
operator=( typename PtrContainer::value_type r )
{
typename PtrContainer::value_type obj = 0;
if( r != 0 )
obj = container_type::clone_allocator_type::allocate_clone(*r);
container->push_back( obj );
return *this;
}
template< class T >
ptr_back_insert_iterator&
operator=( std::auto_ptr<T> r )
{
container->push_back( r );
return *this;
}
ptr_back_insert_iterator&
operator=( typename PtrContainer::const_reference r )
{
container->push_back( container_type::clone_allocator_type::
allocate_clone(r) );
return *this;
}
ptr_back_insert_iterator& operator*()
{
return *this;
}
ptr_back_insert_iterator& operator++()
{
return *this;
}
ptr_back_insert_iterator operator++(int)
{
return *this;
}
protected:
PtrContainer* container;
};
template< class PtrContainer >
class ptr_front_insert_iterator :
public std::iterator<std::output_iterator_tag,void,void,void,void>
{
public:
typedef PtrContainer container_type;
public:
explicit ptr_front_insert_iterator( PtrContainer& cont )
: container(&cont)
{ }
ptr_front_insert_iterator&
operator=( typename PtrContainer::value_type r )
{
typename PtrContainer::value_type obj = 0;
if( r != 0 )
obj = container_type::clone_allocator_type::allocate_clone(*r);
container->push_front( obj );
return *this;
}
template< class T >
ptr_front_insert_iterator&
operator=( std::auto_ptr<T> r )
{
container->push_front( r );
return *this;
}
ptr_front_insert_iterator&
operator=( typename PtrContainer::const_reference r )
{
container->push_front( container_type::clone_allocator_type::
allocate_clone(r) );
return *this;
}
ptr_front_insert_iterator& operator*()
{
return *this;
}
ptr_front_insert_iterator& operator++()
{
return *this;
}
ptr_front_insert_iterator operator++(int)
{
return *this;
}
protected:
PtrContainer* container;
};
template< class PtrContainer >
class ptr_insert_iterator :
public std::iterator<std::output_iterator_tag,void,void,void,void>
{
public:
typedef PtrContainer container_type;
public:
ptr_insert_iterator( PtrContainer& cont,
typename PtrContainer::iterator before )
: container(&cont), iter(before)
{ }
ptr_insert_iterator&
operator=( typename PtrContainer::value_type r )
{
typename PtrContainer::value_type obj = 0;
if( r != 0 )
obj = container_type::clone_allocator_type::allocate_clone(*r);
iter = container->insert( iter, obj );
return *this;
}
template< class T >
ptr_insert_iterator&
operator=( std::auto_ptr<T> r )
{
iter = container->insert( iter, r );
return *this;
}
ptr_insert_iterator&
operator=( typename PtrContainer::const_reference r )
{
iter = container->insert( iter, container_type::clone_allocator_type::
allocate_clone(r) );
return *this;
}
ptr_insert_iterator& operator*()
{
return *this;
}
ptr_insert_iterator& operator++()
{
return *this;
}
ptr_insert_iterator operator++(int)
{
return *this;
}
protected:
PtrContainer* container;
typename PtrContainer::iterator iter;
};
template< class PtrContainer >
inline ptr_back_insert_iterator<PtrContainer>
ptr_back_inserter( PtrContainer& cont )
{
return ptr_back_insert_iterator<PtrContainer>( cont );
}
template< class PtrContainer >
inline ptr_front_insert_iterator<PtrContainer>
ptr_front_inserter( PtrContainer& cont )
{
return ptr_front_insert_iterator<PtrContainer>( cont );
}
template< class PtrContainer >
inline ptr_insert_iterator<PtrContainer>
ptr_inserter( PtrContainer& cont,
typename PtrContainer::iterator before )
{
return ptr_insert_iterator<PtrContainer>( cont, before );
}
} // namespace 'ptr_container'
} // namespace 'boost'
#endif