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boost_range/include/boost/range/algorithm_ext/push_back.hpp

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// Boost.Range library
//
// Copyright Neil Groves 2009. 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/range/
//
#ifndef BOOST_RANGE_ALGORITHM_EXT_PUSH_BACK_HPP_INCLUDED
#define BOOST_RANGE_ALGORITHM_EXT_PUSH_BACK_HPP_INCLUDED
#include <boost/range/config.hpp>
#include <boost/range/concepts.hpp>
#include <boost/range/difference_type.hpp>
#include <boost/range/begin.hpp>
#include <boost/range/end.hpp>
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#include <boost/range/detail/implementation_help.hpp>
#include <boost/assert.hpp>
namespace boost
{
#if !defined( BOOST_NO_CXX11_RVALUE_REFERENCES )
namespace range_detail
{
template < class Container, class Range >
inline Container& push_back_impl( Container& on, Range&& from, std::false_type)
{
BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<Range> ));
BOOST_ASSERT_MSG(!range_detail::is_same_object(on, from),
"cannot move from a container to itself");
on.insert( on.end(),
std::make_move_iterator(boost::begin(from)),
std::make_move_iterator(boost::end(from)));
return on;
}
template < class Container, class Range >
inline Container& push_back_impl( Container& on, const Range& from, std::true_type)
{
BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const Range> ));
BOOST_ASSERT_MSG(!range_detail::is_same_object(on, from),
"cannot copy from a container to itself");
on.insert( on.end(), boost::begin(from), boost::end(from));
return on;
}
} //namespace range_detail
#endif
namespace range {
#if defined( BOOST_NO_CXX11_RVALUE_REFERENCES )
template< class Container, class Range >
inline Container& push_back( Container& on, const Range& from )
{
BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<Container> ));
BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const Range> ));
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BOOST_ASSERT_MSG(!range_detail::is_same_object(on, from),
"cannot copy from a container to itself");
on.insert( on.end(), boost::begin(from), boost::end(from) );
return on;
}
#else
template< class Container, class Range >
inline Container& push_back( Container& on, Range&& from )
{
BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<Container> ));
range_detail::push_back_impl(on,
std::forward<Range>(from),
std::is_lvalue_reference<Range>() );
return on;
}
#endif
} // namespace range
using range::push_back;
} // namespace boost
#endif // include guard