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transform.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_ACTION_TRANSFORM_HPP
15#define RANGES_V3_ACTION_TRANSFORM_HPP
16
18
25#include <range/v3/utility/static_const.hpp>
26
27#include <range/v3/detail/prologue.hpp>
28
29namespace ranges
30{
33 namespace actions
34 {
36 {
37 template(typename F, typename P = identity)(
38 requires (!range<F>))
39 constexpr auto operator()(F fun, P proj = P{}) const
40 {
41 return make_action_closure(
42 bind_back(transform_fn{}, std::move(fun), std::move(proj)));
43 }
44
45 template(typename Rng, typename F, typename P = identity)(
46 requires input_range<Rng> AND copy_constructible<F> AND
49 indirect_result_t<F &, projected<iterator_t<Rng>, P>>>)
50 Rng operator()(Rng && rng, F fun, P proj = P{}) const
51 {
52 ranges::transform(rng, begin(rng), std::move(fun), std::move(proj));
53 return static_cast<Rng &&>(rng);
54 }
55 };
56
58 RANGES_INLINE_VARIABLE(transform_fn, transform)
59 } // namespace actions
61} // namespace ranges
62
63#include <range/v3/detail/epilogue.hpp>
64
65#endif
The indirectly_writable concept.
The input_range concept.
The range concept.
decltype(begin(declval(Rng &))) iterator_t
Definition access.hpp:698
Definition transform.hpp:36
Definition identity.hpp:25