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unstable_remove_if.hpp
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1
2// Range v3 library
3//
4// Copyright Andrey Diduh 2019
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#ifndef RANGES_V3_ACTION_UNSTABLE_REMOVE_IF_HPP
14#define RANGES_V3_ACTION_UNSTABLE_REMOVE_IF_HPP
15
16#include <utility>
17
18#include <concepts/concepts.hpp>
19
21
30
31#include <range/v3/detail/prologue.hpp>
32
33namespace ranges
34{
37 namespace actions
38 {
40 {
41 template(typename C, typename P = identity)(
42 requires (!range<C>))
43 constexpr auto operator()(C pred, P proj = P{}) const
44 {
45 return make_action_closure(
46 bind_back(unstable_remove_if_fn{}, std::move(pred), std::move(proj)));
47 }
48
49 template(typename Rng, typename C, typename P = identity)(
52 indirect_unary_predicate<C, projected<iterator_t<Rng>, P>> AND
54 Rng operator()(Rng && rng, C pred, P proj = P{}) const
55 {
56 auto it = ranges::unstable_remove_if(ranges::begin(rng),
57 ranges::end(rng),
58 std::move(pred),
59 std::move(proj));
60 ranges::erase(rng, it, ranges::end(rng));
61 return static_cast<Rng &&>(rng);
62 }
63 };
64
66 RANGES_INLINE_VARIABLE(unstable_remove_if_fn, unstable_remove_if)
67 } // namespace actions
69} // namespace ranges
70
71#include <range/v3/detail/epilogue.hpp>
72
73#endif // RANGES_V3_ACTION_UNSTABLE_REMOVE_IF_HPP
The bidirectional_range concept.
The common_range concept.
The erasable_range concept.
The indirect_unary_predicate concept.
The permutable concept.
The range concept.
decltype(begin(declval(Rng &))) iterator_t
Definition access.hpp:698
Definition unstable_remove_if.hpp:40
Definition identity.hpp:25