/usr/include/range/v3/view/move.hpp is in librange-v3-dev 0.3.5-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Range v3 library
//
// Copyright Eric Niebler 2013-present
//
// 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)
//
// Project home: https://github.com/ericniebler/range-v3
//
#ifndef RANGES_V3_VIEW_MOVE_HPP
#define RANGES_V3_VIEW_MOVE_HPP
#include <utility>
#include <type_traits>
#include <range/v3/detail/satisfy_boost_range.hpp>
#include <range/v3/range_fwd.hpp>
#include <range/v3/size.hpp>
#include <range/v3/begin_end.hpp>
#include <range/v3/range_traits.hpp>
#include <range/v3/view_adaptor.hpp>
#include <range/v3/range_concepts.hpp>
#include <range/v3/utility/functional.hpp>
#include <range/v3/utility/static_const.hpp>
#include <range/v3/view/view.hpp>
#include <range/v3/view/all.hpp>
namespace ranges
{
inline namespace v3
{
/// \addtogroup group-views
/// @{
template<typename Rng>
struct move_view
: view_adaptor<move_view<Rng>, Rng>
{
private:
friend range_access;
struct adaptor : adaptor_base
{
using value_type = range_value_type_t<Rng>;
range_rvalue_reference_t<Rng> read(iterator_t<Rng> const &it) const
{
return ranges::iter_move(it);
}
range_rvalue_reference_t<Rng> iter_move(iterator_t<Rng> const &it) const
{
return ranges::iter_move(it);
}
};
adaptor begin_adaptor() const
{
return {};
}
adaptor end_adaptor() const
{
return {};
}
public:
move_view() = default;
explicit move_view(Rng rng)
: move_view::view_adaptor{std::move(rng)}
{}
CONCEPT_REQUIRES(SizedRange<Rng const>())
range_size_type_t<Rng> size() const
{
return ranges::size(this->base());
}
CONCEPT_REQUIRES(SizedRange<Rng>())
range_size_type_t<Rng> size()
{
return ranges::size(this->base());
}
};
namespace view
{
struct move_fn
{
template<typename Rng,
CONCEPT_REQUIRES_(InputRange<Rng>())>
move_view<all_t<Rng>> operator()(Rng && rng) const
{
return move_view<all_t<Rng>>{all(static_cast<Rng&&>(rng))};
}
#ifndef RANGES_DOXYGEN_INVOKED
template<typename Rng,
CONCEPT_REQUIRES_(!InputRange<Rng>())>
void operator()(Rng &&) const
{
CONCEPT_ASSERT_MSG(InputRange<Rng>(),
"The argument passed to view::move must be a model of the InputRange "
"concept.");
}
#endif
};
/// \relates move_fn
/// \ingroup group-views
RANGES_INLINE_VARIABLE(view<move_fn>, move)
}
/// @}
}
}
RANGES_SATISFY_BOOST_RANGE(::ranges::v3::move_view)
#endif
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