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Sprout/sprout/range/adaptor/moved.hpp
2015-01-10 19:13:57 +09:00

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2.7 KiB
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/*=============================================================================
Copyright (c) 2011-2015 Bolero MURAKAMI
https://github.com/bolero-MURAKAMI/Sprout
Distributed under 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)
=============================================================================*/
#ifndef SPROUT_RANGE_ADAPTOR_MOVED_HPP
#define SPROUT_RANGE_ADAPTOR_MOVED_HPP
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/container/traits.hpp>
#include <sprout/container/functions.hpp>
#include <sprout/iterator/move_iterator.hpp>
#include <sprout/range/adaptor/detail/adapted_range_default.hpp>
#include <sprout/type_traits/lvalue_reference.hpp>
#include <sprout/utility/forward.hpp>
#include <sprout/utility/lvalue_forward.hpp>
namespace sprout {
namespace adaptors {
//
// moved_range
//
template<typename Range>
class moved_range
: public sprout::adaptors::detail::adapted_range_default<
Range,
sprout::move_iterator<typename sprout::container_traits<Range>::iterator>
>
{
public:
typedef sprout::adaptors::detail::adapted_range_default<
Range,
sprout::move_iterator<typename sprout::container_traits<Range>::iterator>
> base_type;
typedef typename base_type::range_type range_type;
typedef typename base_type::iterator iterator;
public:
SPROUT_CONSTEXPR moved_range() SPROUT_DEFAULTED_DEFAULT_CONSTRUCTOR_DECL
moved_range(moved_range const&) = default;
explicit SPROUT_CONSTEXPR moved_range(range_type& range)
: base_type(
iterator(sprout::end(range)),
iterator(sprout::begin(range))
)
{}
};
//
// moved_forwarder
//
class moved_forwarder {};
//
// moved
//
namespace {
SPROUT_STATIC_CONSTEXPR sprout::adaptors::moved_forwarder moved = {};
} // anonymous-namespace
//
// operator|
//
template<typename Range>
inline SPROUT_CONSTEXPR sprout::adaptors::moved_range<
typename std::remove_reference<typename sprout::lvalue_reference<Range>::type>::type
>
operator|(Range&& lhs, sprout::adaptors::moved_forwarder) {
return sprout::adaptors::moved_range<
typename std::remove_reference<typename sprout::lvalue_reference<Range>::type>::type
>(
sprout::lvalue_forward<Range>(lhs)
);
}
} // namespace adaptors
//
// container_construct_traits
//
template<typename Range>
struct container_construct_traits<sprout::adaptors::moved_range<Range> >
: public sprout::container_construct_traits<typename sprout::adaptors::moved_range<Range>::base_type>
{};
} // namespace sprout
#endif // #ifndef SPROUT_RANGE_ADAPTOR_MOVED_HPP