lvalue pipe operator.cpp

/// Handle lvalue sequence reference. 
/// This means the lifetime of the input sequence should be longer than
/// the lifetime of the output sequence
template <typename Enumerable,typename Combinator>
auto
operator|(Enumerable & enumerable, Combinator c) ->
typename boost::enable_if_c
	< MW_LINQ_IS_ENUMERABLE(Enumerable) && MW_LINQ_IS_LAZY_COMBINATOR(Combinator)
	, EnumerableOp
		< Combinator
		, decltype(boost::make_iterator_range(enumerable))
		>
	>::type 
{
	return  EnumerableOp
	< typename std::decay<Combinator>::type
        , decltype(boost::make_iterator_range(enumerable))
	>
	(boost::make_iterator_range(enumerable), c);
}

rvalue pipe operator.cpp

/// Handle rvalue sequence reference. The sequence will
/// be moved into the operator. This is useful if you
/// wish to return a sequence from a function. If your
/// input sequence is an rvalue then it will get moved.
template <typename Enumerable,typename Combinator>
auto
operator|(Enumerable && enumerable, Combinator c) ->
typename boost::enable_if_c
	< MW_LINQ_IS_ENUMERABLE(Enumerable) && MW_LINQ_IS_LAZY_COMBINATOR(Combinator) && !std::is_lvalue_reference<Enumerable>::value
	, EnumerableOp
		< Combinator
		, Enumerable
		>
	>::type
{
	return  EnumerableOp
	< Combinator
        , Enumerable
	>
	(std::move(enumerable), c);
}