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move.hpp
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1
2// Range v3 library
3//
4// Copyright Eric Niebler 2013-present
5//
6// Use, modification and distribution is subject to the
7// Boost Software License, Version 1.0. (See accompanying
8// file LICENSE_1_0.txt or copy at
9// http://www.boost.org/LICENSE_1_0.txt)
10//
11// Project home: https://github.com/ericniebler/range-v3
12//
13
14#ifndef RANGES_V3_UTILITY_MOVE_HPP
15#define RANGES_V3_UTILITY_MOVE_HPP
16
17#include <type_traits>
18
19#include <meta/meta.hpp>
20
22
23#include <range/v3/utility/static_const.hpp>
24
25#include <range/v3/detail/prologue.hpp>
26
27namespace ranges
28{
29 namespace aux
30 {
33 {
34 template<typename T>
35 constexpr meta::_t<std::remove_reference<T>> && operator()(T && t) const //
36 noexcept
37 {
38 return static_cast<meta::_t<std::remove_reference<T>> &&>(t);
39 }
40
43 template<typename T>
44 friend constexpr decltype(auto) operator|(T && t, move_fn move) noexcept
45 {
46 return move(t);
47 }
48 };
49
52 RANGES_INLINE_VARIABLE(move_fn, move)
53
54
56 template<typename R>
57 using move_t =
58 meta::if_c<std::is_reference<R>::value, meta::_t<std::remove_reference<R>> &&,
59 detail::decay_t<R>>;
60 } // namespace aux
61} // namespace ranges
62
63#include <range/v3/detail/epilogue.hpp>
64
65#endif
meta::if_c< std::is_reference< R >::value, meta::_t< std::remove_reference< R > > &&, detail::decay_t< R > > move_t
Definition move.hpp:59
typename T::type _t
Type alias for T::type.
Definition meta.hpp:141
Tiny meta-programming library.
Definition move.hpp:33
Definition move.hpp:70
Definition range_fwd.hpp:494