xref: /freebsd/contrib/llvm-project/libcxx/include/algorithm (revision fcaf7f8644a9988098ac6be2165bce3ea4786e91)
10b57cec5SDimitry Andric// -*- C++ -*-
2349cc55cSDimitry Andric//===----------------------------------------------------------------------===//
30b57cec5SDimitry Andric//
40b57cec5SDimitry Andric// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
50b57cec5SDimitry Andric// See https://llvm.org/LICENSE.txt for license information.
60b57cec5SDimitry Andric// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
70b57cec5SDimitry Andric//
80b57cec5SDimitry Andric//===----------------------------------------------------------------------===//
90b57cec5SDimitry Andric
100b57cec5SDimitry Andric#ifndef _LIBCPP_ALGORITHM
110b57cec5SDimitry Andric#define _LIBCPP_ALGORITHM
120b57cec5SDimitry Andric
130b57cec5SDimitry Andric/*
140b57cec5SDimitry Andric    algorithm synopsis
150b57cec5SDimitry Andric
160b57cec5SDimitry Andric#include <initializer_list>
170b57cec5SDimitry Andric
180b57cec5SDimitry Andricnamespace std
190b57cec5SDimitry Andric{
200b57cec5SDimitry Andric
2104eeddc0SDimitry Andricnamespace ranges {
2281ad6265SDimitry Andric
2381ad6265SDimitry Andric  // [algorithms.results], algorithm result types
2481ad6265SDimitry Andric  template <class I, class F>
2581ad6265SDimitry Andric    struct in_fun_result;     // since C++20
2681ad6265SDimitry Andric
2704eeddc0SDimitry Andric  template <class I1, class I2>
2804eeddc0SDimitry Andric    struct in_in_result;      // since C++20
291fd87a68SDimitry Andric
3081ad6265SDimitry Andric  template <class I, class O>
3181ad6265SDimitry Andric    struct in_out_result;  // since C++20
3281ad6265SDimitry Andric
331fd87a68SDimitry Andric  template <class I1, class I2, class O>
341fd87a68SDimitry Andric    struct in_in_out_result;  // since C++20
3581ad6265SDimitry Andric
3681ad6265SDimitry Andric  template <class I, class O1, class O2>
3781ad6265SDimitry Andric    struct in_out_out_result; // since C++20
3881ad6265SDimitry Andric
3981ad6265SDimitry Andric  template <class I1, class I2>
4081ad6265SDimitry Andric    struct min_max_result;    // since C++20
4181ad6265SDimitry Andric
4281ad6265SDimitry Andric  template <class I>
4381ad6265SDimitry Andric    struct in_found_result;   // since C++20
4481ad6265SDimitry Andric
4581ad6265SDimitry Andric  template<forward_iterator I, sentinel_for<I> S, class Proj = identity,
4681ad6265SDimitry Andric    indirect_strict_weak_order<projected<I, Proj>> Comp = ranges::less>             // since C++20
4781ad6265SDimitry Andric  constexpr I min_element(I first, S last, Comp comp = {}, Proj proj = {});
4881ad6265SDimitry Andric
4981ad6265SDimitry Andric  template<forward_range R, class Proj = identity,
5081ad6265SDimitry Andric    indirect_strict_weak_order<projected<iterator_t<R>, Proj>> Comp = ranges::less> // since C++20
5181ad6265SDimitry Andric  constexpr borrowed_iterator_t<R> min_element(R&& r, Comp comp = {}, Proj proj = {});
5281ad6265SDimitry Andric
5381ad6265SDimitry Andric  template<forward_iterator I, sentinel_for<I> S, class Proj = identity,
5481ad6265SDimitry Andric    indirect_strict_weak_order<projected<I, Proj>> Comp = ranges::less>
5581ad6265SDimitry Andric  constexpr I ranges::max_element(I first, S last, Comp comp = {}, Proj proj = {});                        // since C++20
5681ad6265SDimitry Andric
5781ad6265SDimitry Andric  template<forward_range R, class Proj = identity,
5881ad6265SDimitry Andric    indirect_strict_weak_order<projected<iterator_t<R>, Proj>> Comp = ranges::less>
5981ad6265SDimitry Andric  constexpr borrowed_iterator_t<R> ranges::max_element(R&& r, Comp comp = {}, Proj proj = {});             // since C++20
6081ad6265SDimitry Andric
6181ad6265SDimitry Andric  template<class I1, class I2>
6281ad6265SDimitry Andric    using mismatch_result = in_in_result<I1, I2>;
6381ad6265SDimitry Andric
6481ad6265SDimitry Andric  template <input_iterator I1, sentinel_for<_I1> S1, input_iterator I2, sentinel_for<_I2> S2,
6581ad6265SDimitry Andric          class Pred = ranges::equal_to, class Proj1 = identity, class Proj2 = identity>
6681ad6265SDimitry Andric    requires indirectly_comparable<I1, I2, Pred, Proj1, Proj2>
6781ad6265SDimitry Andric  constexpr mismatch_result<_I1, _I2>
6881ad6265SDimitry Andric  mismatch()(I1 first1, S1 last1, I2 first2, S2 last2, Pred pred = {}, Proj1 proj1 = {}, Proj2 proj2 = {}) // since C++20
6981ad6265SDimitry Andric
7081ad6265SDimitry Andric  template <input_range R1, input_range R2,
7181ad6265SDimitry Andric          class Pred = ranges::equal_to, class Proj1 = identity, class Proj2 = identity>
7281ad6265SDimitry Andric    requires indirectly_comparable<iterator_t<R1>, iterator_t<R2>, Pred, Proj1, Proj2>
7381ad6265SDimitry Andric  constexpr mismatch_result<borrowed_iterator_t<R1>, borrowed_iterator_t<R2>>
7481ad6265SDimitry Andric  mismatch(R1&& r1, R2&& r2, Pred pred = {}, Proj1 proj1 = {}, Proj2 proj2 = {})                           // since C++20
7581ad6265SDimitry Andric
7681ad6265SDimitry Andric    requires indirect_binary_predicate<ranges::equal_to, projected<I, Proj>, const T*>
7781ad6265SDimitry Andric    constexpr I find(I first, S last, const T& value, Proj proj = {});              // since C++20
7881ad6265SDimitry Andric
7981ad6265SDimitry Andric  template<input_range R, class T, class Proj = identity>
8081ad6265SDimitry Andric    requires indirect_binary_predicate<ranges::equal_to, projected<iterator_t<R>, Proj>, const T*>
8181ad6265SDimitry Andric    constexpr borrowed_iterator_t<R>
8281ad6265SDimitry Andric      find(R&& r, const T& value, Proj proj = {});                                  // since C++20
8381ad6265SDimitry Andric
8481ad6265SDimitry Andric  template<input_iterator I, sentinel_for<I> S, class Proj = identity,
8581ad6265SDimitry Andric           indirect_unary_predicate<projected<I, Proj>> Pred>
8681ad6265SDimitry Andric    constexpr I find_if(I first, S last, Pred pred, Proj proj = {});                // since C++20
8781ad6265SDimitry Andric
8881ad6265SDimitry Andric  template<input_range R, class Proj = identity,
8981ad6265SDimitry Andric           indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred>
9081ad6265SDimitry Andric    constexpr borrowed_iterator_t<R>
9181ad6265SDimitry Andric      find_if(R&& r, Pred pred, Proj proj = {});                                    // since C++20
9281ad6265SDimitry Andric
9381ad6265SDimitry Andric  template<input_iterator I, sentinel_for<I> S, class Proj = identity,
9481ad6265SDimitry Andric           indirect_unary_predicate<projected<I, Proj>> Pred>
9581ad6265SDimitry Andric    constexpr I find_if_not(I first, S last, Pred pred, Proj proj = {});            // since C++20
9681ad6265SDimitry Andric
9781ad6265SDimitry Andric  template<input_range R, class Proj = identity,
9881ad6265SDimitry Andric           indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred>
9981ad6265SDimitry Andric    constexpr borrowed_iterator_t<R>
10081ad6265SDimitry Andric      find_if_not(R&& r, Pred pred, Proj proj = {});                                // since C++20
10181ad6265SDimitry Andric
10281ad6265SDimitry Andric  template<class T, class Proj = identity,
10381ad6265SDimitry Andric           indirect_strict_weak_order<projected<const T*, Proj>> Comp = ranges::less>
10481ad6265SDimitry Andric    constexpr const T& min(const T& a, const T& b, Comp comp = {}, Proj proj = {}); // since C++20
10581ad6265SDimitry Andric
10681ad6265SDimitry Andric  template<copyable T, class Proj = identity,
10781ad6265SDimitry Andric           indirect_strict_weak_order<projected<const T*, Proj>> Comp = ranges::less>
10881ad6265SDimitry Andric    constexpr T min(initializer_list<T> r, Comp comp = {}, Proj proj = {});         // since C++20
10981ad6265SDimitry Andric
11081ad6265SDimitry Andric template<input_range R, class Proj = identity,
11181ad6265SDimitry Andric          indirect_strict_weak_order<projected<iterator_t<R>, Proj>> Comp = ranges::less>
11281ad6265SDimitry Andric   requires indirectly_copyable_storable<iterator_t<R>, range_value_t<R>*>
11381ad6265SDimitry Andric   constexpr range_value_t<R>
11481ad6265SDimitry Andric     min(R&& r, Comp comp = {}, Proj proj = {});                                    // since C++20
11581ad6265SDimitry Andric
11681ad6265SDimitry Andric  template<class T, class Proj = identity,
11781ad6265SDimitry Andric           indirect_strict_weak_order<projected<const T*, Proj>> Comp = ranges::less>
11881ad6265SDimitry Andric    constexpr const T& max(const T& a, const T& b, Comp comp = {}, Proj proj = {}); // since C++20
11981ad6265SDimitry Andric
12081ad6265SDimitry Andric  template<copyable T, class Proj = identity,
12181ad6265SDimitry Andric           indirect_strict_weak_order<projected<const T*, Proj>> Comp = ranges::less>
12281ad6265SDimitry Andric    constexpr T max(initializer_list<T> r, Comp comp = {}, Proj proj = {});         // since C++20
12381ad6265SDimitry Andric
12481ad6265SDimitry Andric  template<input_range R, class Proj = identity,
12581ad6265SDimitry Andric           indirect_strict_weak_order<projected<iterator_t<R>, Proj>> Comp = ranges::less>
12681ad6265SDimitry Andric    requires indirectly_copyable_storable<iterator_t<R>, range_value_t<R>*>
12781ad6265SDimitry Andric    constexpr range_value_t<R>
12881ad6265SDimitry Andric      max(R&& r, Comp comp = {}, Proj proj = {});                                   // since C++20
12981ad6265SDimitry Andric
13081ad6265SDimitry Andric  template<class I, class O>
13181ad6265SDimitry Andric    using unary_transform_result = in_out_result<I, O>;                             // since C++20
13281ad6265SDimitry Andric
13381ad6265SDimitry Andric  template<class I1, class I2, class O>
13481ad6265SDimitry Andric    using binary_transform_result = in_in_out_result<I1, I2, O>;                    // since C++20
13581ad6265SDimitry Andric
13681ad6265SDimitry Andric  template<input_iterator I, sentinel_for<I> S, weakly_incrementable O,
13781ad6265SDimitry Andric           copy_constructible F, class Proj = identity>
13881ad6265SDimitry Andric    requires indirectly_writable<O, indirect_result_t<F&, projected<I, Proj>>>
13981ad6265SDimitry Andric    constexpr ranges::unary_transform_result<I, O>
14081ad6265SDimitry Andric      transform(I first1, S last1, O result, F op, Proj proj = {});                 // since C++20
14181ad6265SDimitry Andric
14281ad6265SDimitry Andric  template<input_range R, weakly_incrementable O, copy_constructible F,
14381ad6265SDimitry Andric           class Proj = identity>
14481ad6265SDimitry Andric    requires indirectly_writable<O, indirect_result_t<F&, projected<iterator_t<R>, Proj>>>
14581ad6265SDimitry Andric    constexpr ranges::unary_transform_result<borrowed_iterator_t<R>, O>
14681ad6265SDimitry Andric      transform(R&& r, O result, F op, Proj proj = {});                             // since C++20
14781ad6265SDimitry Andric
14881ad6265SDimitry Andric  template<input_iterator I1, sentinel_for<I1> S1, input_iterator I2, sentinel_for<I2> S2,
14981ad6265SDimitry Andric           weakly_incrementable O, copy_constructible F, class Proj1 = identity,
15081ad6265SDimitry Andric           class Proj2 = identity>
15181ad6265SDimitry Andric    requires indirectly_writable<O, indirect_result_t<F&, projected<I1, Proj1>,
15281ad6265SDimitry Andric                                           projected<I2, Proj2>>>
15381ad6265SDimitry Andric    constexpr ranges::binary_transform_result<I1, I2, O>
15481ad6265SDimitry Andric      transform(I1 first1, S1 last1, I2 first2, S2 last2, O result,
15581ad6265SDimitry Andric                        F binary_op, Proj1 proj1 = {}, Proj2 proj2 = {});           // since C++20
15681ad6265SDimitry Andric
15781ad6265SDimitry Andric  template<input_range R1, input_range R2, weakly_incrementable O,
15881ad6265SDimitry Andric           copy_constructible F, class Proj1 = identity, class Proj2 = identity>
15981ad6265SDimitry Andric    requires indirectly_writable<O, indirect_result_t<F&, projected<iterator_t<R1>, Proj1>,
16081ad6265SDimitry Andric                                           projected<iterator_t<R2>, Proj2>>>
16181ad6265SDimitry Andric    constexpr ranges::binary_transform_result<borrowed_iterator_t<R1>, borrowed_iterator_t<R2>, O>
16281ad6265SDimitry Andric      transform(R1&& r1, R2&& r2, O result,
16381ad6265SDimitry Andric                        F binary_op, Proj1 proj1 = {}, Proj2 proj2 = {});           // since C++20
16481ad6265SDimitry Andric
16581ad6265SDimitry Andric  template<input_iterator I, sentinel_for<I> S, class T, class Proj = identity>
16681ad6265SDimitry Andric    requires indirect_binary_predicate<ranges::equal_to, projected<I, Proj>, const T*>
16781ad6265SDimitry Andric    constexpr iter_difference_t<I>
16881ad6265SDimitry Andric      count(I first, S last, const T& value, Proj proj = {});                       // since C++20
16981ad6265SDimitry Andric
17081ad6265SDimitry Andric  template<input_range R, class T, class Proj = identity>
17181ad6265SDimitry Andric    requires indirect_binary_predicate<ranges::equal_to, projected<iterator_t<R>, Proj>, const T*>
17281ad6265SDimitry Andric    constexpr range_difference_t<R>
17381ad6265SDimitry Andric      count(R&& r, const T& value, Proj proj = {});                                 // since C++20
17481ad6265SDimitry Andric
17581ad6265SDimitry Andric  template<input_iterator I, sentinel_for<I> S, class Proj = identity,
17681ad6265SDimitry Andric           indirect_unary_predicate<projected<I, Proj>> Pred>
17781ad6265SDimitry Andric    constexpr iter_difference_t<I>
17881ad6265SDimitry Andric      count_if(I first, S last, Pred pred, Proj proj = {});                         // since C++20
17981ad6265SDimitry Andric
18081ad6265SDimitry Andric  template<input_range R, class Proj = identity,
18181ad6265SDimitry Andric           indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred>
18281ad6265SDimitry Andric    constexpr range_difference_t<R>
18381ad6265SDimitry Andric      count_if(R&& r, Pred pred, Proj proj = {});                                   // since C++20
18481ad6265SDimitry Andric
18581ad6265SDimitry Andric  template<class T>
18681ad6265SDimitry Andric  using minmax_result = min_max_result<T>;
18781ad6265SDimitry Andric
18881ad6265SDimitry Andric  template<class T, class Proj = identity,
18981ad6265SDimitry Andric           indirect_strict_weak_order<projected<const T*, Proj>> Comp = ranges::less>
19081ad6265SDimitry Andric    constexpr ranges::minmax_result<const T&>
19181ad6265SDimitry Andric      minmax(const T& a, const T& b, Comp comp = {}, Proj proj = {});                     // since C++20
19281ad6265SDimitry Andric
19381ad6265SDimitry Andric  template<copyable T, class Proj = identity,
19481ad6265SDimitry Andric           indirect_strict_weak_order<projected<const T*, Proj>> Comp = ranges::less>
19581ad6265SDimitry Andric    constexpr ranges::minmax_result<T>
19681ad6265SDimitry Andric      minmax(initializer_list<T> r, Comp comp = {}, Proj proj = {});                      // since C++20
19781ad6265SDimitry Andric
19881ad6265SDimitry Andric  template<input_range R, class Proj = identity,
19981ad6265SDimitry Andric           indirect_strict_weak_order<projected<iterator_t<R>, Proj>> Comp = ranges::less>
20081ad6265SDimitry Andric    requires indirectly_copyable_storable<iterator_t<R>, range_value_t<R>*>
20181ad6265SDimitry Andric    constexpr ranges::minmax_result<range_value_t<R>>
20281ad6265SDimitry Andric      minmax(R&& r, Comp comp = {}, Proj proj = {});                                      // since C++20
20381ad6265SDimitry Andric
20481ad6265SDimitry Andric  template<class I>
20581ad6265SDimitry Andric  using minmax_element_result = min_max_result<I>;
20681ad6265SDimitry Andric
20781ad6265SDimitry Andric  template<forward_iterator I, sentinel_for<I> S, class Proj = identity,
20881ad6265SDimitry Andric           indirect_strict_weak_order<projected<I, Proj>> Comp = ranges::less>
20981ad6265SDimitry Andric    constexpr ranges::minmax_element_result<I>
21081ad6265SDimitry Andric      minmax_element(I first, S last, Comp comp = {}, Proj proj = {});                    // since C++20
21181ad6265SDimitry Andric
21281ad6265SDimitry Andric  template<forward_range R, class Proj = identity,
21381ad6265SDimitry Andric           indirect_strict_weak_order<projected<iterator_t<R>, Proj>> Comp = ranges::less>
21481ad6265SDimitry Andric    constexpr ranges::minmax_element_result<borrowed_iterator_t<R>>
21581ad6265SDimitry Andric      minmax_element(R&& r, Comp comp = {}, Proj proj = {});                              // since C++20
21681ad6265SDimitry Andric
21781ad6265SDimitry Andric  template<class I, class O>
21881ad6265SDimitry Andric    using copy_result = in_out_result<I, O>;                                              // since C++20
21981ad6265SDimitry Andric
22081ad6265SDimitry Andric  template<class I, class O>
22181ad6265SDimitry Andric    using copy_n_result = in_out_result<I, O>;                                            // since C++20
22281ad6265SDimitry Andric
22381ad6265SDimitry Andric  template<class I, class O>
22481ad6265SDimitry Andric    using copy_if_result = in_out_result<I, O>;                                             // since C++20
22581ad6265SDimitry Andric
22681ad6265SDimitry Andric  template<class I1, class I2>
22781ad6265SDimitry Andric    using copy_backward_result = in_out_result<I1, I2>;                                     // since C++20
22881ad6265SDimitry Andric
22981ad6265SDimitry Andric  template<input_iterator I, sentinel_for<I> S, weakly_incrementable O>
23081ad6265SDimitry Andric    requires indirectly_copyable<I, O>
23181ad6265SDimitry Andric    constexpr ranges::copy_result<I, O> ranges::copy(I first, S last, O result);            // since C++20
23281ad6265SDimitry Andric
23381ad6265SDimitry Andric  template<input_range R, weakly_incrementable O>
23481ad6265SDimitry Andric    requires indirectly_copyable<iterator_t<R>, O>
23581ad6265SDimitry Andric    constexpr ranges::copy_result<borrowed_iterator_t<R>, O> ranges::copy(R&& r, O result); // since C++20
23681ad6265SDimitry Andric
23781ad6265SDimitry Andric  template<input_iterator I, weakly_incrementable O>
23881ad6265SDimitry Andric    requires indirectly_copyable<I, O>
23981ad6265SDimitry Andric    constexpr ranges::copy_n_result<I, O>
24081ad6265SDimitry Andric      ranges::copy_n(I first, iter_difference_t<I> n, O result);                            // since C++20
24181ad6265SDimitry Andric
24281ad6265SDimitry Andric  template<input_iterator I, sentinel_for<I> S, weakly_incrementable O, class Proj = identity,
24381ad6265SDimitry Andric           indirect_unary_predicate<projected<I, Proj>> Pred>
24481ad6265SDimitry Andric    requires indirectly_copyable<I, O>
24581ad6265SDimitry Andric    constexpr ranges::copy_if_result<I, O>
24681ad6265SDimitry Andric      ranges::copy_if(I first, S last, O result, Pred pred, Proj proj = {});                // since C++20
24781ad6265SDimitry Andric
24881ad6265SDimitry Andric  template<input_range R, weakly_incrementable O, class Proj = identity,
24981ad6265SDimitry Andric           indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred>
25081ad6265SDimitry Andric    requires indirectly_copyable<iterator_t<R>, O>
25181ad6265SDimitry Andric    constexpr ranges::copy_if_result<borrowed_iterator_t<R>, O>
25281ad6265SDimitry Andric      ranges::copy_if(R&& r, O result, Pred pred, Proj proj = {});                          // since C++20
25381ad6265SDimitry Andric
25481ad6265SDimitry Andric  template<bidirectional_iterator I1, sentinel_for<I1> S1, bidirectional_iterator I2>
25581ad6265SDimitry Andric    requires indirectly_copyable<I1, I2>
25681ad6265SDimitry Andric    constexpr ranges::copy_backward_result<I1, I2>
25781ad6265SDimitry Andric      ranges::copy_backward(I1 first, S1 last, I2 result);                                  // since C++20
25881ad6265SDimitry Andric
25981ad6265SDimitry Andric  template<bidirectional_range R, bidirectional_iterator I>
26081ad6265SDimitry Andric    requires indirectly_copyable<iterator_t<R>, I>
26181ad6265SDimitry Andric    constexpr ranges::copy_backward_result<borrowed_iterator_t<R>, I>
26281ad6265SDimitry Andric      ranges::copy_backward(R&& r, I result);                                               // since C++20
26381ad6265SDimitry Andric
26481ad6265SDimitry Andric  template<class I, class F>
26581ad6265SDimitry Andric    using for_each_result = in_fun_result<I, F>;                                            // since C++20
26681ad6265SDimitry Andric
26781ad6265SDimitry Andric  template<input_iterator I, sentinel_for<I> S, class Proj = identity,
26881ad6265SDimitry Andric           indirectly_unary_invocable<projected<I, Proj>> Fun>
26981ad6265SDimitry Andric    constexpr ranges::for_each_result<I, Fun>
27081ad6265SDimitry Andric      ranges::for_each(I first, S last, Fun f, Proj proj = {});                             // since C++20
27181ad6265SDimitry Andric
27281ad6265SDimitry Andric  template<input_range R, class Proj = identity,
27381ad6265SDimitry Andric           indirectly_unary_invocable<projected<iterator_t<R>, Proj>> Fun>
27481ad6265SDimitry Andric    constexpr ranges::for_each_result<borrowed_iterator_t<R>, Fun>
27581ad6265SDimitry Andric      ranges::for_each(R&& r, Fun f, Proj proj = {});                                       // since C++20
27681ad6265SDimitry Andric
27781ad6265SDimitry Andric  template<input_iterator I, class Proj = identity,
27881ad6265SDimitry Andric           indirectly_unary_invocable<projected<I, Proj>> Fun>
27981ad6265SDimitry Andric    constexpr ranges::for_each_n_result<I, Fun>
28081ad6265SDimitry Andric      ranges::for_each_n(I first, iter_difference_t<I> n, Fun f, Proj proj = {});           // since C++20
28181ad6265SDimitry Andric
28281ad6265SDimitry Andric  template<input_iterator I, sentinel_for<I> S, class Proj = identity,
28381ad6265SDimitry Andric           indirect_unary_predicate<projected<I, Proj>> Pred>
28481ad6265SDimitry Andric    constexpr bool ranges::is_partitioned(I first, S last, Pred pred, Proj proj = {});      // since C++20
28581ad6265SDimitry Andric
28681ad6265SDimitry Andric  template<input_range R, class Proj = identity,
28781ad6265SDimitry Andric           indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred>
28881ad6265SDimitry Andric    constexpr bool ranges::is_partitioned(R&& r, Pred pred, Proj proj = {});                // since C++20
28981ad6265SDimitry Andric
290753f127fSDimitry Andric  template<random_access_iterator I, sentinel_for<I> S, class Comp = ranges::less,
291753f127fSDimitry Andric          class Proj = identity>
292753f127fSDimitry Andric    requires sortable<I, Comp, Proj>
293753f127fSDimitry Andric    constexpr I
294753f127fSDimitry Andric      ranges::push_heap(I first, S last, Comp comp = {}, Proj proj = {});                   // since C++20
295753f127fSDimitry Andric
296753f127fSDimitry Andric  template<random_access_range R, class Comp = ranges::less, class Proj = identity>
297753f127fSDimitry Andric    requires sortable<iterator_t<R>, Comp, Proj>
298753f127fSDimitry Andric    constexpr borrowed_iterator_t<R>
299753f127fSDimitry Andric      ranges::push_heap(R&& r, Comp comp = {}, Proj proj = {});                             // since C++20
300753f127fSDimitry Andric
301753f127fSDimitry Andric  template<random_access_iterator I, sentinel_for<I> S, class Comp = ranges::less,
302753f127fSDimitry Andric          class Proj = identity>
303753f127fSDimitry Andric    requires sortable<I, Comp, Proj>
304753f127fSDimitry Andric    constexpr I
305753f127fSDimitry Andric      ranges::pop_heap(I first, S last, Comp comp = {}, Proj proj = {});                    // since C++20
306753f127fSDimitry Andric
307753f127fSDimitry Andric  template<random_access_range R, class Comp = ranges::less, class Proj = identity>
308753f127fSDimitry Andric    requires sortable<iterator_t<R>, Comp, Proj>
309753f127fSDimitry Andric    constexpr borrowed_iterator_t<R>
310753f127fSDimitry Andric      ranges::pop_heap(R&& r, Comp comp = {}, Proj proj = {});                              // since C++20
311753f127fSDimitry Andric
312753f127fSDimitry Andric  template<random_access_iterator I, sentinel_for<I> S, class Comp = ranges::less,
313753f127fSDimitry Andric          class Proj = identity>
314753f127fSDimitry Andric    requires sortable<I, Comp, Proj>
315753f127fSDimitry Andric    constexpr I
316753f127fSDimitry Andric      ranges::make_heap(I first, S last, Comp comp = {}, Proj proj = {});                   // since C++20
317753f127fSDimitry Andric
318753f127fSDimitry Andric  template<random_access_range R, class Comp = ranges::less, class Proj = identity>
319753f127fSDimitry Andric    requires sortable<iterator_t<R>, Comp, Proj>
320753f127fSDimitry Andric    constexpr borrowed_iterator_t<R>
321753f127fSDimitry Andric      ranges::make_heap(R&& r, Comp comp = {}, Proj proj = {});                             // since C++20
322753f127fSDimitry Andric
323753f127fSDimitry Andric  template<random_access_iterator I, sentinel_for<I> S, class Comp = ranges::less,
324753f127fSDimitry Andric          class Proj = identity>
325753f127fSDimitry Andric    requires sortable<I, Comp, Proj>
326753f127fSDimitry Andric    constexpr I
327753f127fSDimitry Andric      ranges::sort_heap(I first, S last, Comp comp = {}, Proj proj = {});                   // since C++20
328753f127fSDimitry Andric
329753f127fSDimitry Andric  template<random_access_range R, class Comp = ranges::less, class Proj = identity>
330753f127fSDimitry Andric    requires sortable<iterator_t<R>, Comp, Proj>
331753f127fSDimitry Andric    constexpr borrowed_iterator_t<R>
332753f127fSDimitry Andric      ranges::sort_heap(R&& r, Comp comp = {}, Proj proj = {});                             // since C++20
333753f127fSDimitry Andric
33481ad6265SDimitry Andric  template<bidirectional_iterator I, sentinel_for<I> S>
33581ad6265SDimitry Andric    requires permutable<I>
33681ad6265SDimitry Andric    constexpr I ranges::reverse(I first, S last);                                           // since C++20
33781ad6265SDimitry Andric
33881ad6265SDimitry Andric  template<bidirectional_range R>
33981ad6265SDimitry Andric    requires permutable<iterator_t<R>>
34081ad6265SDimitry Andric    constexpr borrowed_iterator_t<R> ranges::reverse(R&& r);                                // since C++20
34181ad6265SDimitry Andric
34281ad6265SDimitry Andric  template<random_access_iterator I, sentinel_for<I> S, class Comp = ranges::less,
34381ad6265SDimitry Andric            class Proj = identity>
34481ad6265SDimitry Andric    requires sortable<I, Comp, Proj>
34581ad6265SDimitry Andric    constexpr I
34681ad6265SDimitry Andric      ranges::sort(I first, S last, Comp comp = {}, Proj proj = {});                        // since C++20
34781ad6265SDimitry Andric
34881ad6265SDimitry Andric  template<random_access_range R, class Comp = ranges::less, class Proj = identity>
34981ad6265SDimitry Andric    requires sortable<iterator_t<R>, Comp, Proj>
35081ad6265SDimitry Andric    constexpr borrowed_iterator_t<R>
35181ad6265SDimitry Andric      ranges::sort(R&& r, Comp comp = {}, Proj proj = {});                                  // since C++20
35281ad6265SDimitry Andric
35381ad6265SDimitry Andric  template<random_access_iterator I, sentinel_for<I> S, class Comp = ranges::less,
35481ad6265SDimitry Andric          class Proj = identity>
35581ad6265SDimitry Andric    requires sortable<I, Comp, Proj>
35681ad6265SDimitry Andric    I ranges::stable_sort(I first, S last, Comp comp = {}, Proj proj = {});                 // since C++20
35781ad6265SDimitry Andric
35881ad6265SDimitry Andric  template<random_access_range R, class Comp = ranges::less, class Proj = identity>
35981ad6265SDimitry Andric    requires sortable<iterator_t<R>, Comp, Proj>
36081ad6265SDimitry Andric    borrowed_iterator_t<R>
36181ad6265SDimitry Andric      ranges::stable_sort(R&& r, Comp comp = {}, Proj proj = {});                           // since C++20
36281ad6265SDimitry Andric
363*fcaf7f86SDimitry Andric  template<random_access_iterator I, sentinel_for<I> S, class Comp = ranges::less,
364*fcaf7f86SDimitry Andric           class Proj = identity>
365*fcaf7f86SDimitry Andric    requires sortable<I, Comp, Proj>
366*fcaf7f86SDimitry Andric    constexpr I
367*fcaf7f86SDimitry Andric      ranges::partial_sort(I first, I middle, S last, Comp comp = {}, Proj proj = {});      // since C++20
368*fcaf7f86SDimitry Andric
369*fcaf7f86SDimitry Andric  template<random_access_range R, class Comp = ranges::less, class Proj = identity>
370*fcaf7f86SDimitry Andric    requires sortable<iterator_t<R>, Comp, Proj>
371*fcaf7f86SDimitry Andric    constexpr borrowed_iterator_t<R>
372*fcaf7f86SDimitry Andric      ranges::partial_sort(R&& r, iterator_t<R> middle, Comp comp = {}, Proj proj = {});    // since C++20
373*fcaf7f86SDimitry Andric
37481ad6265SDimitry Andric  template<class T, output_iterator<const T&> O, sentinel_for<O> S>
37581ad6265SDimitry Andric    constexpr O ranges::fill(O first, S last, const T& value);                              // since C++20
37681ad6265SDimitry Andric
37781ad6265SDimitry Andric  template<class T, output_range<const T&> R>
37881ad6265SDimitry Andric    constexpr borrowed_iterator_t<R> ranges::fill(R&& r, const T& value);                   // since C++20
37981ad6265SDimitry Andric
38081ad6265SDimitry Andric  template<class T, output_iterator<const T&> O>
38181ad6265SDimitry Andric    constexpr O ranges::fill_n(O first, iter_difference_t<O> n, const T& value);            // since C++20
38281ad6265SDimitry Andric
38381ad6265SDimitry Andric template<input_iterator I1, sentinel_for<I1> S1, input_iterator I2, sentinel_for<I2> S2,
38481ad6265SDimitry Andric          class Pred = ranges::equal_to, class Proj1 = identity, class Proj2 = identity>
38581ad6265SDimitry Andric   requires indirectly_comparable<I1, I2, Pred, Proj1, Proj2>
38681ad6265SDimitry Andric   constexpr bool ranges::equal(I1 first1, S1 last1, I2 first2, S2 last2,
38781ad6265SDimitry Andric                                Pred pred = {},
38881ad6265SDimitry Andric                                Proj1 proj1 = {}, Proj2 proj2 = {});                        // since C++20
38981ad6265SDimitry Andric
39081ad6265SDimitry Andric template<input_range R1, input_range R2, class Pred = ranges::equal_to,
39181ad6265SDimitry Andric          class Proj1 = identity, class Proj2 = identity>
39281ad6265SDimitry Andric   requires indirectly_comparable<iterator_t<R1>, iterator_t<R2>, Pred, Proj1, Proj2>
39381ad6265SDimitry Andric   constexpr bool ranges::equal(R1&& r1, R2&& r2, Pred pred = {},
39481ad6265SDimitry Andric                                Proj1 proj1 = {}, Proj2 proj2 = {});                        // since C++20
39581ad6265SDimitry Andric
39681ad6265SDimitry Andric  template<input_iterator I, sentinel_for<I> S, class Proj = identity,
39781ad6265SDimitry Andric           indirect_unary_predicate<projected<I, Proj>> Pred>
39881ad6265SDimitry Andric    constexpr bool ranges::all_of(I first, S last, Pred pred, Proj proj = {});      // since C++20
39981ad6265SDimitry Andric
40081ad6265SDimitry Andric  template<input_range R, class Proj = identity,
40181ad6265SDimitry Andric           indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred>
40281ad6265SDimitry Andric    constexpr bool ranges::all_of(R&& r, Pred pred, Proj proj = {});                // since C++20
40381ad6265SDimitry Andric
40481ad6265SDimitry Andric  template<input_iterator I, sentinel_for<I> S, class Proj = identity,
40581ad6265SDimitry Andric           indirect_unary_predicate<projected<I, Proj>> Pred>
40681ad6265SDimitry Andric    constexpr bool ranges::any_of(I first, S last, Pred pred, Proj proj = {});      // since C++20
40781ad6265SDimitry Andric
40881ad6265SDimitry Andric  template<input_range R, class Proj = identity,
40981ad6265SDimitry Andric           indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred>
41081ad6265SDimitry Andric    constexpr bool ranges::any_of(R&& r, Pred pred, Proj proj = {});                // since C++20
41181ad6265SDimitry Andric
41281ad6265SDimitry Andric  template<input_iterator I, sentinel_for<I> S, class Proj = identity,
41381ad6265SDimitry Andric           indirect_unary_predicate<projected<I, Proj>> Pred>
41481ad6265SDimitry Andric    constexpr bool ranges::none_of(I first, S last, Pred pred, Proj proj = {});     // since C++20
41581ad6265SDimitry Andric
41681ad6265SDimitry Andric  template<input_range R, class Proj = identity,
41781ad6265SDimitry Andric           indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred>
41881ad6265SDimitry Andric    constexpr bool ranges::none_of(R&& r, Pred pred, Proj proj = {});               // since C++20
41981ad6265SDimitry Andric
42081ad6265SDimitry Andric  template<forward_iterator I, sentinel_for<I> S, class Proj = identity,
42181ad6265SDimitry Andric           indirect_strict_weak_order<projected<I, Proj>> Comp = ranges::less>
42281ad6265SDimitry Andric    constexpr bool ranges::is_sorted(I first, S last, Comp comp = {}, Proj proj = {});      // since C++20
42381ad6265SDimitry Andric
42481ad6265SDimitry Andric  template<forward_range R, class Proj = identity,
42581ad6265SDimitry Andric           indirect_strict_weak_order<projected<iterator_t<R>, Proj>> Comp = ranges::less>
42681ad6265SDimitry Andric    constexpr bool ranges::is_sorted(R&& r, Comp comp = {}, Proj proj = {});                // since C++20
42781ad6265SDimitry Andric
42881ad6265SDimitry Andric  template<forward_iterator I, sentinel_for<I> S, class Proj = identity,
42981ad6265SDimitry Andric           indirect_strict_weak_order<projected<I, Proj>> Comp = ranges::less>
43081ad6265SDimitry Andric    constexpr I ranges::is_sorted_until(I first, S last, Comp comp = {}, Proj proj = {});   // since C++20
43181ad6265SDimitry Andric
43281ad6265SDimitry Andric  template<forward_range R, class Proj = identity,
43381ad6265SDimitry Andric           indirect_strict_weak_order<projected<iterator_t<R>, Proj>> Comp = ranges::less>
43481ad6265SDimitry Andric    constexpr borrowed_iterator_t<R>
43581ad6265SDimitry Andric      ranges::is_sorted_until(R&& r, Comp comp = {}, Proj proj = {});                       // since C++20
43681ad6265SDimitry Andric
437753f127fSDimitry Andric  template<random_access_iterator I, sentinel_for<I> S, class Comp = ranges::less,
438753f127fSDimitry Andric          class Proj = identity>
439753f127fSDimitry Andric    requires sortable<I, Comp, Proj>
440753f127fSDimitry Andric    constexpr I
441753f127fSDimitry Andric      ranges::nth_element(I first, I nth, S last, Comp comp = {}, Proj proj = {});            // since C++20
442753f127fSDimitry Andric
443753f127fSDimitry Andric  template<random_access_range R, class Comp = ranges::less, class Proj = identity>
444753f127fSDimitry Andric    requires sortable<iterator_t<R>, Comp, Proj>
445753f127fSDimitry Andric    constexpr borrowed_iterator_t<R>
446753f127fSDimitry Andric      ranges::nth_element(R&& r, iterator_t<R> nth, Comp comp = {}, Proj proj = {});          // since C++20
447753f127fSDimitry Andric
44881ad6265SDimitry Andric  template<forward_iterator I, sentinel_for<I> S, class T, class Proj = identity,
44981ad6265SDimitry Andric           indirect_strict_weak_order<const T*, projected<I, Proj>> Comp = ranges::less>
45081ad6265SDimitry Andric    constexpr I upper_bound(I first, S last, const T& value, Comp comp = {}, Proj proj = {}); // since C++20
45181ad6265SDimitry Andric
45281ad6265SDimitry Andric  template<forward_range R, class T, class Proj = identity,
45381ad6265SDimitry Andric           indirect_strict_weak_order<const T*, projected<iterator_t<R>, Proj>> Comp =
45481ad6265SDimitry Andric             ranges::less>
45581ad6265SDimitry Andric    constexpr borrowed_iterator_t<R>
45681ad6265SDimitry Andric      upper_bound(R&& r, const T& value, Comp comp = {}, Proj proj = {});                     // since C++20
45781ad6265SDimitry Andric
45881ad6265SDimitry Andric  template<forward_iterator I, sentinel_for<I> S, class T, class Proj = identity,
45981ad6265SDimitry Andric           indirect_strict_weak_order<const T*, projected<I, Proj>> Comp = ranges::less>
46081ad6265SDimitry Andric    constexpr I lower_bound(I first, S last, const T& value, Comp comp = {},
46181ad6265SDimitry Andric                                    Proj proj = {});                                          // since C++20
46281ad6265SDimitry Andric  template<forward_range R, class T, class Proj = identity,
46381ad6265SDimitry Andric           indirect_strict_weak_order<const T*, projected<iterator_t<R>, Proj>> Comp =
46481ad6265SDimitry Andric             ranges::less>
46581ad6265SDimitry Andric    constexpr borrowed_iterator_t<R>
46681ad6265SDimitry Andric      lower_bound(R&& r, const T& value, Comp comp = {}, Proj proj = {});                     // since C++20
46781ad6265SDimitry Andric
46881ad6265SDimitry Andric  template<forward_iterator I, sentinel_for<I> S, class T, class Proj = identity,
46981ad6265SDimitry Andric           indirect_strict_weak_order<const T*, projected<I, Proj>> Comp = ranges::less>
47081ad6265SDimitry Andric    constexpr bool binary_search(I first, S last, const T& value, Comp comp = {},
47181ad6265SDimitry Andric                                         Proj proj = {});                                     // since C++20
47281ad6265SDimitry Andric
47381ad6265SDimitry Andric  template<forward_range R, class T, class Proj = identity,
47481ad6265SDimitry Andric           indirect_strict_weak_order<const T*, projected<iterator_t<R>, Proj>> Comp =
47581ad6265SDimitry Andric             ranges::less>
47681ad6265SDimitry Andric    constexpr bool binary_search(R&& r, const T& value, Comp comp = {},
47781ad6265SDimitry Andric                                         Proj proj = {});                                     // since C++20
478*fcaf7f86SDimitry Andric
479*fcaf7f86SDimitry Andric  template<permutable I, sentinel_for<I> S, class Proj = identity,
480*fcaf7f86SDimitry Andric           indirect_unary_predicate<projected<I, Proj>> Pred>
481*fcaf7f86SDimitry Andric    constexpr subrange<I>
482*fcaf7f86SDimitry Andric      partition(I first, S last, Pred pred, Proj proj = {});                                  // Since C++20
483*fcaf7f86SDimitry Andric
484*fcaf7f86SDimitry Andric  template<forward_range R, class Proj = identity,
485*fcaf7f86SDimitry Andric           indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred>
486*fcaf7f86SDimitry Andric    requires permutable<iterator_t<R>>
487*fcaf7f86SDimitry Andric    constexpr borrowed_subrange_t<R>
488*fcaf7f86SDimitry Andric      partition(R&& r, Pred pred, Proj proj = {});                                            // Since C++20
489*fcaf7f86SDimitry Andric
490*fcaf7f86SDimitry Andric  template<bidirectional_iterator I, sentinel_for<I> S, class Proj = identity,
491*fcaf7f86SDimitry Andric           indirect_unary_predicate<projected<I, Proj>> Pred>
492*fcaf7f86SDimitry Andric    requires permutable<I>
493*fcaf7f86SDimitry Andric    subrange<I> stable_partition(I first, S last, Pred pred, Proj proj = {});                 // Since C++20
494*fcaf7f86SDimitry Andric
495*fcaf7f86SDimitry Andric  template<bidirectional_range R, class Proj = identity,
496*fcaf7f86SDimitry Andric           indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred>
497*fcaf7f86SDimitry Andric    requires permutable<iterator_t<R>>
498*fcaf7f86SDimitry Andric    borrowed_subrange_t<R> stable_partition(R&& r, Pred pred, Proj proj = {});                // Since C++20
499*fcaf7f86SDimitry Andric
50081ad6265SDimitry Andric  template<input_iterator I1, sentinel_for<I1> S1, forward_iterator I2, sentinel_for<I2> S2,
50181ad6265SDimitry Andric           class Pred = ranges::equal_to, class Proj1 = identity, class Proj2 = identity>
50281ad6265SDimitry Andric    requires indirectly_comparable<I1, I2, Pred, Proj1, Proj2>
50381ad6265SDimitry Andric    constexpr I1 ranges::find_first_of(I1 first1, S1 last1, I2 first2, S2 last2,
50481ad6265SDimitry Andric                                       Pred pred = {},
50581ad6265SDimitry Andric                                       Proj1 proj1 = {}, Proj2 proj2 = {});                 // since C++20
50681ad6265SDimitry Andric
50781ad6265SDimitry Andric  template<input_range R1, forward_range R2,
50881ad6265SDimitry Andric           class Pred = ranges::equal_to, class Proj1 = identity, class Proj2 = identity>
50981ad6265SDimitry Andric    requires indirectly_comparable<iterator_t<R1>, iterator_t<R2>, Pred, Proj1, Proj2>
51081ad6265SDimitry Andric    constexpr borrowed_iterator_t<R1>
51181ad6265SDimitry Andric      ranges::find_first_of(R1&& r1, R2&& r2,
51281ad6265SDimitry Andric                            Pred pred = {},
51381ad6265SDimitry Andric                            Proj1 proj1 = {}, Proj2 proj2 = {});                            // since C++20
51481ad6265SDimitry Andric
51581ad6265SDimitry Andric  template<forward_iterator I, sentinel_for<I> S, class Proj = identity,
51681ad6265SDimitry Andric           indirect_binary_predicate<projected<I, Proj>,
51781ad6265SDimitry Andric                                     projected<I, Proj>> Pred = ranges::equal_to>
51881ad6265SDimitry Andric    constexpr I ranges::adjacent_find(I first, S last, Pred pred = {}, Proj proj = {});     // since C+20
51981ad6265SDimitry Andric
52081ad6265SDimitry Andric  template<forward_range R, class Proj = identity,
52181ad6265SDimitry Andric           indirect_binary_predicate<projected<iterator_t<R>, Proj>,
52281ad6265SDimitry Andric                                     projected<iterator_t<R>, Proj>> Pred = ranges::equal_to>
52381ad6265SDimitry Andric    constexpr borrowed_iterator_t<R> ranges::adjacent_find(R&& r, Pred pred = {}, Proj proj = {});  // since C++20
52481ad6265SDimitry Andric
52581ad6265SDimitry Andric  template<input_iterator I, sentinel_for<I> S, class T1, class T2, class Proj = identity>
52681ad6265SDimitry Andric    requires indirectly_writable<I, const T2&> &&
52781ad6265SDimitry Andric             indirect_binary_predicate<ranges::equal_to, projected<I, Proj>, const T1*>
52881ad6265SDimitry Andric    constexpr I
52981ad6265SDimitry Andric      ranges::replace(I first, S last, const T1& old_value, const T2& new_value, Proj proj = {});   // since C++20
53081ad6265SDimitry Andric
53181ad6265SDimitry Andric  template<input_range R, class T1, class T2, class Proj = identity>
53281ad6265SDimitry Andric    requires indirectly_writable<iterator_t<R>, const T2&> &&
53381ad6265SDimitry Andric             indirect_binary_predicate<ranges::equal_to, projected<iterator_t<R>, Proj>, const T1*>
53481ad6265SDimitry Andric    constexpr borrowed_iterator_t<R>
53581ad6265SDimitry Andric      ranges::replace(R&& r, const T1& old_value, const T2& new_value, Proj proj = {});             // since C++20
53681ad6265SDimitry Andric
53781ad6265SDimitry Andric  template<input_iterator I, sentinel_for<I> S, class T, class Proj = identity,
53881ad6265SDimitry Andric           indirect_unary_predicate<projected<I, Proj>> Pred>
53981ad6265SDimitry Andric    requires indirectly_writable<I, const T&>
54081ad6265SDimitry Andric    constexpr I ranges::replace_if(I first, S last, Pred pred, const T& new_value, Proj proj = {}); // since C++20
54181ad6265SDimitry Andric
54281ad6265SDimitry Andric  template<input_range R, class T, class Proj = identity,
54381ad6265SDimitry Andric           indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred>
54481ad6265SDimitry Andric    requires indirectly_writable<iterator_t<R>, const T&>
54581ad6265SDimitry Andric    constexpr borrowed_iterator_t<R>
54681ad6265SDimitry Andric      ranges::replace_if(R&& r, Pred pred, const T& new_value, Proj proj = {});                     // since C++20
54781ad6265SDimitry Andric
54881ad6265SDimitry Andric  template<input_iterator I1, sentinel_for<I1> S1, input_iterator I2, sentinel_for<I2> S2,
54981ad6265SDimitry Andric           class Proj1 = identity, class Proj2 = identity,
55081ad6265SDimitry Andric           indirect_strict_weak_order<projected<I1, Proj1>,
55181ad6265SDimitry Andric                                      projected<I2, Proj2>> Comp = ranges::less>
55281ad6265SDimitry Andric    constexpr bool
55381ad6265SDimitry Andric      ranges::lexicographical_compare(I1 first1, S1 last1, I2 first2, S2 last2,
55481ad6265SDimitry Andric                                      Comp comp = {}, Proj1 proj1 = {}, Proj2 proj2 = {});    // since C++20
55581ad6265SDimitry Andric
55681ad6265SDimitry Andric  template<input_range R1, input_range R2, class Proj1 = identity,
55781ad6265SDimitry Andric           class Proj2 = identity,
55881ad6265SDimitry Andric           indirect_strict_weak_order<projected<iterator_t<R1>, Proj1>,
55981ad6265SDimitry Andric                                      projected<iterator_t<R2>, Proj2>> Comp = ranges::less>
56081ad6265SDimitry Andric    constexpr bool
56181ad6265SDimitry Andric      ranges::lexicographical_compare(R1&& r1, R2&& r2, Comp comp = {},
56281ad6265SDimitry Andric                                      Proj1 proj1 = {}, Proj2 proj2 = {});                    // since C++20
56381ad6265SDimitry Andric
56481ad6265SDimitry Andric  template<bidirectional_iterator I1, sentinel_for<I1> S1, bidirectional_iterator I2>
56581ad6265SDimitry Andric    requires indirectly_movable<I1, I2>
56681ad6265SDimitry Andric    constexpr ranges::move_backward_result<I1, I2>
56781ad6265SDimitry Andric      ranges::move_backward(I1 first, S1 last, I2 result);                                          // since C++20
56881ad6265SDimitry Andric
56981ad6265SDimitry Andric  template<bidirectional_range R, bidirectional_iterator I>
57081ad6265SDimitry Andric    requires indirectly_movable<iterator_t<R>, I>
57181ad6265SDimitry Andric    constexpr ranges::move_backward_result<borrowed_iterator_t<R>, I>
57281ad6265SDimitry Andric      ranges::move_backward(R&& r, I result);                                                       // since C++20
57381ad6265SDimitry Andric
57481ad6265SDimitry Andric  template<input_iterator I, sentinel_for<I> S, weakly_incrementable O>
57581ad6265SDimitry Andric    requires indirectly_movable<I, O>
57681ad6265SDimitry Andric    constexpr ranges::move_result<I, O>
57781ad6265SDimitry Andric      ranges::move(I first, S last, O result);                                                      // since C++20
57881ad6265SDimitry Andric
57981ad6265SDimitry Andric  template<input_range R, weakly_incrementable O>
58081ad6265SDimitry Andric    requires indirectly_movable<iterator_t<R>, O>
58181ad6265SDimitry Andric    constexpr ranges::move_result<borrowed_iterator_t<R>, O>
58281ad6265SDimitry Andric      ranges::move(R&& r, O result);                                                                // since C++20
58381ad6265SDimitry Andric
584*fcaf7f86SDimitry Andric  template<class I, class O1, class O2>
585*fcaf7f86SDimitry Andric      using partition_copy_result = in_out_out_result<I, O1, O2>;                                   // since C++20
586*fcaf7f86SDimitry Andric
587*fcaf7f86SDimitry Andric  template<input_iterator I, sentinel_for<I> S,
588*fcaf7f86SDimitry Andric          weakly_incrementable O1, weakly_incrementable O2,
589*fcaf7f86SDimitry Andric          class Proj = identity, indirect_unary_predicate<projected<I, Proj>> Pred>
590*fcaf7f86SDimitry Andric    requires indirectly_copyable<I, O1> && indirectly_copyable<I, O2>
591*fcaf7f86SDimitry Andric    constexpr partition_copy_result<I, O1, O2>
592*fcaf7f86SDimitry Andric      partition_copy(I first, S last, O1 out_true, O2 out_false, Pred pred,
593*fcaf7f86SDimitry Andric                    Proj proj = {});                                                                // Since C++20
594*fcaf7f86SDimitry Andric
595*fcaf7f86SDimitry Andric  template<input_range R, weakly_incrementable O1, weakly_incrementable O2,
596*fcaf7f86SDimitry Andric          class Proj = identity,
597*fcaf7f86SDimitry Andric          indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred>
598*fcaf7f86SDimitry Andric    requires indirectly_copyable<iterator_t<R>, O1> &&
599*fcaf7f86SDimitry Andric            indirectly_copyable<iterator_t<R>, O2>
600*fcaf7f86SDimitry Andric    constexpr partition_copy_result<borrowed_iterator_t<R>, O1, O2>
601*fcaf7f86SDimitry Andric      partition_copy(R&& r, O1 out_true, O2 out_false, Pred pred, Proj proj = {});                  // Since C++20
602*fcaf7f86SDimitry Andric
603*fcaf7f86SDimitry Andric  template<forward_iterator I, sentinel_for<I> S, class Proj = identity,
604*fcaf7f86SDimitry Andric           indirect_unary_predicate<projected<I, Proj>> Pred>
605*fcaf7f86SDimitry Andric    constexpr I partition_point(I first, S last, Pred pred, Proj proj = {});                        // Since C++20
606*fcaf7f86SDimitry Andric
607*fcaf7f86SDimitry Andric  template<forward_range R, class Proj = identity,
608*fcaf7f86SDimitry Andric           indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred>
609*fcaf7f86SDimitry Andric    constexpr borrowed_iterator_t<R>
610*fcaf7f86SDimitry Andric      partition_point(R&& r, Pred pred, Proj proj = {});                                            // Since C++20
611*fcaf7f86SDimitry Andric
612753f127fSDimitry Andric  template<class I1, class I2, class O>
613753f127fSDimitry Andric    using merge_result = in_in_out_result<I1, I2, O>;                                               // since C++20
614753f127fSDimitry Andric
615753f127fSDimitry Andric  template<input_iterator I1, sentinel_for<I1> S1, input_iterator I2, sentinel_for<I2> S2,
616753f127fSDimitry Andric           weakly_incrementable O, class Comp = ranges::less, class Proj1 = identity,
617753f127fSDimitry Andric           class Proj2 = identity>
618753f127fSDimitry Andric    requires mergeable<I1, I2, O, Comp, Proj1, Proj2>
619753f127fSDimitry Andric    constexpr merge_result<I1, I2, O>
620753f127fSDimitry Andric      merge(I1 first1, S1 last1, I2 first2, S2 last2, O result,
621753f127fSDimitry Andric            Comp comp = {}, Proj1 proj1 = {}, Proj2 proj2 = {});                                    // since C++20
622753f127fSDimitry Andric
623753f127fSDimitry Andric  template<input_range R1, input_range R2, weakly_incrementable O, class Comp = ranges::less,
624753f127fSDimitry Andric           class Proj1 = identity, class Proj2 = identity>
625753f127fSDimitry Andric    requires mergeable<iterator_t<R1>, iterator_t<R2>, O, Comp, Proj1, Proj2>
626753f127fSDimitry Andric    constexpr merge_result<borrowed_iterator_t<R1>, borrowed_iterator_t<R2>, O>
627753f127fSDimitry Andric      merge(R1&& r1, R2&& r2, O result,
628753f127fSDimitry Andric            Comp comp = {}, Proj1 proj1 = {}, Proj2 proj2 = {});                                    // since C++20
629753f127fSDimitry Andric
630753f127fSDimitry Andric  template<permutable I, sentinel_for<I> S, class T, class Proj = identity>
631753f127fSDimitry Andric    requires indirect_binary_predicate<ranges::equal_to, projected<I, Proj>, const T*>
632753f127fSDimitry Andric    constexpr subrange<I> ranges::remove(I first, S last, const T& value, Proj proj = {});          // since C++20
633753f127fSDimitry Andric
634753f127fSDimitry Andric  template<forward_range R, class T, class Proj = identity>
635753f127fSDimitry Andric    requires permutable<iterator_t<R>> &&
636753f127fSDimitry Andric             indirect_binary_predicate<ranges::equal_to, projected<iterator_t<R>, Proj>, const T*>
637753f127fSDimitry Andric    constexpr borrowed_subrange_t<R>
638753f127fSDimitry Andric      ranges::remove(R&& r, const T& value, Proj proj = {});                                        // since C++20
639753f127fSDimitry Andric
640753f127fSDimitry Andric  template<permutable I, sentinel_for<I> S, class Proj = identity,
641753f127fSDimitry Andric           indirect_unary_predicate<projected<I, Proj>> Pred>
642753f127fSDimitry Andric    constexpr subrange<I> ranges::remove_if(I first, S last, Pred pred, Proj proj = {});            // since C++20
643753f127fSDimitry Andric
644753f127fSDimitry Andric  template<forward_range R, class Proj = identity,
645753f127fSDimitry Andric           indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred>
646753f127fSDimitry Andric    requires permutable<iterator_t<R>>
647753f127fSDimitry Andric    constexpr borrowed_subrange_t<R>
648753f127fSDimitry Andric      ranges::remove_if(R&& r, Pred pred, Proj proj = {});                                          // since C++20
649753f127fSDimitry Andric
650753f127fSDimitry Andric  template<class I, class O>
651753f127fSDimitry Andric    using set_difference_result = in_out_result<I, O>;                                              // since C++20
652753f127fSDimitry Andric
653753f127fSDimitry Andric  template<input_iterator I1, sentinel_for<I1> S1, input_iterator I2, sentinel_for<I2> S2,
654753f127fSDimitry Andric           weakly_incrementable O, class Comp = ranges::less,
655753f127fSDimitry Andric           class Proj1 = identity, class Proj2 = identity>
656753f127fSDimitry Andric    requires mergeable<I1, I2, O, Comp, Proj1, Proj2>
657753f127fSDimitry Andric    constexpr set_difference_result<I1, O>
658753f127fSDimitry Andric      set_difference(I1 first1, S1 last1, I2 first2, S2 last2, O result,
659753f127fSDimitry Andric                     Comp comp = {}, Proj1 proj1 = {}, Proj2 proj2 = {});                           // since C++20
660753f127fSDimitry Andric
661753f127fSDimitry Andric  template<input_range R1, input_range R2, weakly_incrementable O,
662753f127fSDimitry Andric           class Comp = ranges::less, class Proj1 = identity, class Proj2 = identity>
663753f127fSDimitry Andric    requires mergeable<iterator_t<R1>, iterator_t<R2>, O, Comp, Proj1, Proj2>
664753f127fSDimitry Andric    constexpr set_difference_result<borrowed_iterator_t<R1>, O>
665753f127fSDimitry Andric      set_difference(R1&& r1, R2&& r2, O result,
666753f127fSDimitry Andric                     Comp comp = {}, Proj1 proj1 = {}, Proj2 proj2 = {});                           // since C++20
667753f127fSDimitry Andric
668753f127fSDimitry Andric  template<class I1, class I2, class O>
669753f127fSDimitry Andric    using set_intersection_result = in_in_out_result<I1, I2, O>;                                    // since C++20
670753f127fSDimitry Andric
671753f127fSDimitry Andric  template<input_iterator I1, sentinel_for<I1> S1, input_iterator I2, sentinel_for<I2> S2,
672753f127fSDimitry Andric           weakly_incrementable O, class Comp = ranges::less,
673753f127fSDimitry Andric           class Proj1 = identity, class Proj2 = identity>
674753f127fSDimitry Andric    requires mergeable<I1, I2, O, Comp, Proj1, Proj2>
675753f127fSDimitry Andric    constexpr set_intersection_result<I1, I2, O>
676753f127fSDimitry Andric      set_intersection(I1 first1, S1 last1, I2 first2, S2 last2, O result,
677753f127fSDimitry Andric                       Comp comp = {}, Proj1 proj1 = {}, Proj2 proj2 = {});                         // since C++20
678753f127fSDimitry Andric
679753f127fSDimitry Andric  template<input_iterator I1, sentinel_for<I1> S1, input_iterator I2, sentinel_for<I2> S2,
680753f127fSDimitry Andric           weakly_incrementable O, class Comp = ranges::less,
681753f127fSDimitry Andric           class Proj1 = identity, class Proj2 = identity>
682753f127fSDimitry Andric    requires mergeable<I1, I2, O, Comp, Proj1, Proj2>
683753f127fSDimitry Andric    constexpr set_intersection_result<borrowed_iterator_t<R1>, borrowed_iterator_t<R2>, O>
684753f127fSDimitry Andric      set_intersection(R1&& r1, R2&& r2, O result,
685753f127fSDimitry Andric                       Comp comp = {}, Proj1 proj1 = {}, Proj2 proj2 = {});                         // since C++20
686753f127fSDimitry Andric
687753f127fSDimitry Andric  template <class _InIter, class _OutIter>
688753f127fSDimitry Andric  using reverse_copy_result = in_out_result<_InIter, _OutIter>;                                     // since C++20
689753f127fSDimitry Andric
690753f127fSDimitry Andric  template<bidirectional_iterator I, sentinel_for<I> S, weakly_incrementable O>
691753f127fSDimitry Andric    requires indirectly_copyable<I, O>
692753f127fSDimitry Andric    constexpr ranges::reverse_copy_result<I, O>
693753f127fSDimitry Andric      ranges::reverse_copy(I first, S last, O result);                                              // since C++20
694753f127fSDimitry Andric
695753f127fSDimitry Andric  template<bidirectional_range R, weakly_incrementable O>
696753f127fSDimitry Andric    requires indirectly_copyable<iterator_t<R>, O>
697753f127fSDimitry Andric    constexpr ranges::reverse_copy_result<borrowed_iterator_t<R>, O>
698753f127fSDimitry Andric      ranges::reverse_copy(R&& r, O result);                                                        // since C++20
699753f127fSDimitry Andric
700753f127fSDimitry Andric  template <class _InIter, class _OutIter>
701753f127fSDimitry Andric  using rotate_copy_result = in_out_result<_InIter, _OutIter>;                                      // since C++20
702753f127fSDimitry Andric
703753f127fSDimitry Andric  template<forward_iterator I, sentinel_for<I> S, weakly_incrementable O>
704753f127fSDimitry Andric    requires indirectly_copyable<I, O>
705753f127fSDimitry Andric    constexpr ranges::rotate_copy_result<I, O>
706753f127fSDimitry Andric      ranges::rotate_copy(I first, I middle, S last, O result);                                     // since C++20
707753f127fSDimitry Andric
708753f127fSDimitry Andric  template<forward_range R, weakly_incrementable O>
709753f127fSDimitry Andric    requires indirectly_copyable<iterator_t<R>, O>
710753f127fSDimitry Andric    constexpr ranges::rotate_copy_result<borrowed_iterator_t<R>, O>
711753f127fSDimitry Andric      ranges::rotate_copy(R&& r, iterator_t<R> middle, O result);                                   // since C++20
712753f127fSDimitry Andric
713*fcaf7f86SDimitry Andric  template<random_access_iterator I, sentinel_for<I> S, class Gen>
714*fcaf7f86SDimitry Andric    requires permutable<I> &&
715*fcaf7f86SDimitry Andric            uniform_random_bit_generator<remove_reference_t<Gen>>
716*fcaf7f86SDimitry Andric    I shuffle(I first, S last, Gen&& g);                                                           // Since C++20
717*fcaf7f86SDimitry Andric
718*fcaf7f86SDimitry Andric  template<random_access_range R, class Gen>
719*fcaf7f86SDimitry Andric    requires permutable<iterator_t<R>> &&
720*fcaf7f86SDimitry Andric            uniform_random_bit_generator<remove_reference_t<Gen>>
721*fcaf7f86SDimitry Andric    borrowed_iterator_t<R> shuffle(R&& r, Gen&& g);                                                // Since C++20
722*fcaf7f86SDimitry Andric
723753f127fSDimitry Andric  template<forward_iterator I1, sentinel_for<I1> S1, forward_iterator I2,
724753f127fSDimitry Andric           sentinel_for<I2> S2, class Pred = ranges::equal_to,
725753f127fSDimitry Andric           class Proj1 = identity, class Proj2 = identity>
726753f127fSDimitry Andric    requires indirectly_comparable<I1, I2, Pred, Proj1, Proj2>
727753f127fSDimitry Andric    constexpr subrange<I1>
728753f127fSDimitry Andric      ranges::search(I1 first1, S1 last1, I2 first2, S2 last2, Pred pred = {},
729753f127fSDimitry Andric                     Proj1 proj1 = {}, Proj2 proj2 = {});                                           // since C++20
730753f127fSDimitry Andric
731753f127fSDimitry Andric  template<forward_range R1, forward_range R2, class Pred = ranges::equal_to,
732753f127fSDimitry Andric           class Proj1 = identity, class Proj2 = identity>
733753f127fSDimitry Andric    requires indirectly_comparable<iterator_t<R1>, iterator_t<R2>, Pred, Proj1, Proj2>
734753f127fSDimitry Andric    constexpr borrowed_subrange_t<R1>
735753f127fSDimitry Andric      ranges::search(R1&& r1, R2&& r2, Pred pred = {},
736753f127fSDimitry Andric                     Proj1 proj1 = {}, Proj2 proj2 = {});                                           // since C++20
737753f127fSDimitry Andric
738753f127fSDimitry Andric  template<forward_iterator I, sentinel_for<I> S, class T,
739753f127fSDimitry Andric           class Pred = ranges::equal_to, class Proj = identity>
740753f127fSDimitry Andric    requires indirectly_comparable<I, const T*, Pred, Proj>
741753f127fSDimitry Andric    constexpr subrange<I>
742753f127fSDimitry Andric      ranges::search_n(I first, S last, iter_difference_t<I> count,
743753f127fSDimitry Andric                       const T& value, Pred pred = {}, Proj proj = {});                             // since C++20
744753f127fSDimitry Andric
745753f127fSDimitry Andric  template<forward_range R, class T, class Pred = ranges::equal_to,
746753f127fSDimitry Andric           class Proj = identity>
747753f127fSDimitry Andric    requires indirectly_comparable<iterator_t<R>, const T*, Pred, Proj>
748753f127fSDimitry Andric    constexpr borrowed_subrange_t<R>
749753f127fSDimitry Andric      ranges::search_n(R&& r, range_difference_t<R> count,
750753f127fSDimitry Andric                       const T& value, Pred pred = {}, Proj proj = {});                             // since C++20
751753f127fSDimitry Andric
752753f127fSDimitry Andric  template<forward_iterator I1, sentinel_for<I1> S1, forward_iterator I2, sentinel_for<I2> S2,
753753f127fSDimitry Andric           class Pred = ranges::equal_to, class Proj1 = identity, class Proj2 = identity>
754753f127fSDimitry Andric    requires indirectly_comparable<I1, I2, Pred, Proj1, Proj2>
755753f127fSDimitry Andric    constexpr subrange<I1>
756753f127fSDimitry Andric      ranges::find_end(I1 first1, S1 last1, I2 first2, S2 last2, Pred pred = {},
757753f127fSDimitry Andric                       Proj1 proj1 = {}, Proj2 proj2 = {});                                         // since C++20
758753f127fSDimitry Andric
759753f127fSDimitry Andric  template<forward_range R1, forward_range R2,
760753f127fSDimitry Andric           class Pred = ranges::equal_to, class Proj1 = identity, class Proj2 = identity>
761753f127fSDimitry Andric    requires indirectly_comparable<iterator_t<R1>, iterator_t<R2>, Pred, Proj1, Proj2>
762753f127fSDimitry Andric    constexpr borrowed_subrange_t<R1>
763753f127fSDimitry Andric      ranges::find_end(R1&& r1, R2&& r2, Pred pred = {},
764753f127fSDimitry Andric                       Proj1 proj1 = {}, Proj2 proj2 = {});                                         // since C++20
765753f127fSDimitry Andric
766753f127fSDimitry Andric  template<class I1, class I2, class O>
767753f127fSDimitry Andric    using set_symmetric_difference_result = in_in_out_result<I1, I2, O>;                            // since C++20
768753f127fSDimitry Andric
769753f127fSDimitry Andric  template<input_iterator I1, sentinel_for<I1> S1, input_iterator I2, sentinel_for<I2> S2,
770753f127fSDimitry Andric           weakly_incrementable O, class Comp = ranges::less,
771753f127fSDimitry Andric           class Proj1 = identity, class Proj2 = identity>
772753f127fSDimitry Andric    requires mergeable<I1, I2, O, Comp, Proj1, Proj2>
773753f127fSDimitry Andric    constexpr set_symmetric_difference_result<I1, I2, O>
774753f127fSDimitry Andric      set_symmetric_difference(I1 first1, S1 last1, I2 first2, S2 last2, O result,
775753f127fSDimitry Andric                               Comp comp = {}, Proj1 proj1 = {},
776753f127fSDimitry Andric                               Proj2 proj2 = {});                                                   // since C++20
777753f127fSDimitry Andric
778753f127fSDimitry Andric  template<input_range R1, input_range R2, weakly_incrementable O,
779753f127fSDimitry Andric           class Comp = ranges::less, class Proj1 = identity, class Proj2 = identity>
780753f127fSDimitry Andric    requires mergeable<iterator_t<R1>, iterator_t<R2>, O, Comp, Proj1, Proj2>
781753f127fSDimitry Andric    constexpr set_symmetric_difference_result<borrowed_iterator_t<R1>,
782753f127fSDimitry Andric                                                      borrowed_iterator_t<R2>, O>
783753f127fSDimitry Andric      set_symmetric_difference(R1&& r1, R2&& r2, O result, Comp comp = {},
784753f127fSDimitry Andric                               Proj1 proj1 = {}, Proj2 proj2 = {});                                 // since C++20
78581ad6265SDimitry Andric
786*fcaf7f86SDimitry Andric  template<forward_iterator I, sentinel_for<I> S, class T, class Proj = identity,
787*fcaf7f86SDimitry Andric           indirect_strict_weak_order<const T*, projected<I, Proj>> Comp = ranges::less>
788*fcaf7f86SDimitry Andric    constexpr subrange<I>
789*fcaf7f86SDimitry Andric      equal_range(I first, S last, const T& value, Comp comp = {}, Proj proj = {});                 // since C++20
790*fcaf7f86SDimitry Andric
791*fcaf7f86SDimitry Andric  template<forward_range R, class T, class Proj = identity,
792*fcaf7f86SDimitry Andric           indirect_strict_weak_order<const T*, projected<iterator_t<R>, Proj>> Comp =
793*fcaf7f86SDimitry Andric             ranges::less>
794*fcaf7f86SDimitry Andric    constexpr borrowed_subrange_t<R>
795*fcaf7f86SDimitry Andric      equal_range(R&& r, const T& value, Comp comp = {}, Proj proj = {});                           // since C++20
796*fcaf7f86SDimitry Andric
797*fcaf7f86SDimitry Andric  template<class I1, class I2, class O>
798*fcaf7f86SDimitry Andric    using set_union_result = in_in_out_result<I1, I2, O>;                                           // since C++20
799*fcaf7f86SDimitry Andric
800*fcaf7f86SDimitry Andric  template<input_iterator I1, sentinel_for<I1> S1, input_iterator I2, sentinel_for<I2> S2,
801*fcaf7f86SDimitry Andric           weakly_incrementable O, class Comp = ranges::less,
802*fcaf7f86SDimitry Andric           class Proj1 = identity, class Proj2 = identity>
803*fcaf7f86SDimitry Andric    requires mergeable<I1, I2, O, Comp, Proj1, Proj2>
804*fcaf7f86SDimitry Andric    constexpr set_union_result<I1, I2, O>
805*fcaf7f86SDimitry Andric      set_union(I1 first1, S1 last1, I2 first2, S2 last2, O result, Comp comp = {},
806*fcaf7f86SDimitry Andric                Proj1 proj1 = {}, Proj2 proj2 = {});                                                // since C++20
807*fcaf7f86SDimitry Andric
808*fcaf7f86SDimitry Andric  template<input_range R1, input_range R2, weakly_incrementable O,
809*fcaf7f86SDimitry Andric           class Comp = ranges::less, class Proj1 = identity, class Proj2 = identity>
810*fcaf7f86SDimitry Andric    requires mergeable<iterator_t<R1>, iterator_t<R2>, O, Comp, Proj1, Proj2>
811*fcaf7f86SDimitry Andric    constexpr set_union_result<borrowed_iterator_t<R1>, borrowed_iterator_t<R2>, O>
812*fcaf7f86SDimitry Andric      set_union(R1&& r1, R2&& r2, O result, Comp comp = {},
813*fcaf7f86SDimitry Andric                Proj1 proj1 = {}, Proj2 proj2 = {});                                                // since C++20
814*fcaf7f86SDimitry Andric
815*fcaf7f86SDimitry Andric  template<input_iterator I1, sentinel_for<I1> S1, input_iterator I2, sentinel_for<I2> S2,
816*fcaf7f86SDimitry Andric           class Proj1 = identity, class Proj2 = identity,
817*fcaf7f86SDimitry Andric           indirect_strict_weak_order<projected<I1, Proj1>, projected<I2, Proj2>> Comp =
818*fcaf7f86SDimitry Andric             ranges::less>
819*fcaf7f86SDimitry Andric    constexpr bool includes(I1 first1, S1 last1, I2 first2, S2 last2, Comp comp = {},
820*fcaf7f86SDimitry Andric                            Proj1 proj1 = {}, Proj2 proj2 = {});                                   // Since C++20
821*fcaf7f86SDimitry Andric
822*fcaf7f86SDimitry Andric  template<input_range R1, input_range R2, class Proj1 = identity,
823*fcaf7f86SDimitry Andric           class Proj2 = identity,
824*fcaf7f86SDimitry Andric           indirect_strict_weak_order<projected<iterator_t<R1>, Proj1>,
825*fcaf7f86SDimitry Andric                                      projected<iterator_t<R2>, Proj2>> Comp = ranges::less>
826*fcaf7f86SDimitry Andric    constexpr bool includes(R1&& r1, R2&& r2, Comp comp = {},
827*fcaf7f86SDimitry Andric                            Proj1 proj1 = {}, Proj2 proj2 = {});                                   // Since C++20
82804eeddc0SDimitry Andric}
82904eeddc0SDimitry Andric
8300b57cec5SDimitry Andric    constexpr bool     // constexpr in C++20
8310b57cec5SDimitry Andric    all_of(InputIterator first, InputIterator last, Predicate pred);
8320b57cec5SDimitry Andric
8330b57cec5SDimitry Andrictemplate <class InputIterator, class Predicate>
8340b57cec5SDimitry Andric    constexpr bool     // constexpr in C++20
8350b57cec5SDimitry Andric    any_of(InputIterator first, InputIterator last, Predicate pred);
8360b57cec5SDimitry Andric
8370b57cec5SDimitry Andrictemplate <class InputIterator, class Predicate>
8380b57cec5SDimitry Andric    constexpr bool     // constexpr in C++20
8390b57cec5SDimitry Andric    none_of(InputIterator first, InputIterator last, Predicate pred);
8400b57cec5SDimitry Andric
8410b57cec5SDimitry Andrictemplate <class InputIterator, class Function>
8420b57cec5SDimitry Andric    constexpr Function          // constexpr in C++20
8430b57cec5SDimitry Andric    for_each(InputIterator first, InputIterator last, Function f);
8440b57cec5SDimitry Andric
8450b57cec5SDimitry Andrictemplate<class InputIterator, class Size, class Function>
8460b57cec5SDimitry Andric    constexpr InputIterator     // constexpr in C++20
8470b57cec5SDimitry Andric    for_each_n(InputIterator first, Size n, Function f); // C++17
8480b57cec5SDimitry Andric
8490b57cec5SDimitry Andrictemplate <class InputIterator, class T>
8500b57cec5SDimitry Andric    constexpr InputIterator     // constexpr in C++20
8510b57cec5SDimitry Andric    find(InputIterator first, InputIterator last, const T& value);
8520b57cec5SDimitry Andric
8530b57cec5SDimitry Andrictemplate <class InputIterator, class Predicate>
8540b57cec5SDimitry Andric    constexpr InputIterator     // constexpr in C++20
8550b57cec5SDimitry Andric    find_if(InputIterator first, InputIterator last, Predicate pred);
8560b57cec5SDimitry Andric
8570b57cec5SDimitry Andrictemplate<class InputIterator, class Predicate>
858e8d8bef9SDimitry Andric    constexpr InputIterator     // constexpr in C++20
8590b57cec5SDimitry Andric    find_if_not(InputIterator first, InputIterator last, Predicate pred);
8600b57cec5SDimitry Andric
8610b57cec5SDimitry Andrictemplate <class ForwardIterator1, class ForwardIterator2>
862e8d8bef9SDimitry Andric    constexpr ForwardIterator1  // constexpr in C++20
8630b57cec5SDimitry Andric    find_end(ForwardIterator1 first1, ForwardIterator1 last1,
8640b57cec5SDimitry Andric             ForwardIterator2 first2, ForwardIterator2 last2);
8650b57cec5SDimitry Andric
8660b57cec5SDimitry Andrictemplate <class ForwardIterator1, class ForwardIterator2, class BinaryPredicate>
867e8d8bef9SDimitry Andric    constexpr ForwardIterator1  // constexpr in C++20
8680b57cec5SDimitry Andric    find_end(ForwardIterator1 first1, ForwardIterator1 last1,
8690b57cec5SDimitry Andric             ForwardIterator2 first2, ForwardIterator2 last2, BinaryPredicate pred);
8700b57cec5SDimitry Andric
8710b57cec5SDimitry Andrictemplate <class ForwardIterator1, class ForwardIterator2>
8720b57cec5SDimitry Andric    constexpr ForwardIterator1  // constexpr in C++20
8730b57cec5SDimitry Andric    find_first_of(ForwardIterator1 first1, ForwardIterator1 last1,
8740b57cec5SDimitry Andric                  ForwardIterator2 first2, ForwardIterator2 last2);
8750b57cec5SDimitry Andric
8760b57cec5SDimitry Andrictemplate <class ForwardIterator1, class ForwardIterator2, class BinaryPredicate>
8770b57cec5SDimitry Andric    constexpr ForwardIterator1  // constexpr in C++20
8780b57cec5SDimitry Andric    find_first_of(ForwardIterator1 first1, ForwardIterator1 last1,
8790b57cec5SDimitry Andric                  ForwardIterator2 first2, ForwardIterator2 last2, BinaryPredicate pred);
8800b57cec5SDimitry Andric
8810b57cec5SDimitry Andrictemplate <class ForwardIterator>
8820b57cec5SDimitry Andric    constexpr ForwardIterator   // constexpr in C++20
8830b57cec5SDimitry Andric    adjacent_find(ForwardIterator first, ForwardIterator last);
8840b57cec5SDimitry Andric
8850b57cec5SDimitry Andrictemplate <class ForwardIterator, class BinaryPredicate>
8860b57cec5SDimitry Andric    constexpr ForwardIterator   // constexpr in C++20
8870b57cec5SDimitry Andric    adjacent_find(ForwardIterator first, ForwardIterator last, BinaryPredicate pred);
8880b57cec5SDimitry Andric
8890b57cec5SDimitry Andrictemplate <class InputIterator, class T>
8900b57cec5SDimitry Andric    constexpr typename iterator_traits<InputIterator>::difference_type  // constexpr in C++20
8910b57cec5SDimitry Andric    count(InputIterator first, InputIterator last, const T& value);
8920b57cec5SDimitry Andric
8930b57cec5SDimitry Andrictemplate <class InputIterator, class Predicate>
8940b57cec5SDimitry Andric    constexpr typename iterator_traits<InputIterator>::difference_type // constexpr in C++20
8950b57cec5SDimitry Andric    count_if(InputIterator first, InputIterator last, Predicate pred);
8960b57cec5SDimitry Andric
8970b57cec5SDimitry Andrictemplate <class InputIterator1, class InputIterator2>
8980b57cec5SDimitry Andric    constexpr pair<InputIterator1, InputIterator2>   // constexpr in C++20
8990b57cec5SDimitry Andric    mismatch(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2);
9000b57cec5SDimitry Andric
9010b57cec5SDimitry Andrictemplate <class InputIterator1, class InputIterator2>
9020b57cec5SDimitry Andric    constexpr pair<InputIterator1, InputIterator2>   // constexpr in C++20
9030b57cec5SDimitry Andric    mismatch(InputIterator1 first1, InputIterator1 last1,
9040b57cec5SDimitry Andric             InputIterator2 first2, InputIterator2 last2); // **C++14**
9050b57cec5SDimitry Andric
9060b57cec5SDimitry Andrictemplate <class InputIterator1, class InputIterator2, class BinaryPredicate>
9070b57cec5SDimitry Andric    constexpr pair<InputIterator1, InputIterator2>   // constexpr in C++20
9080b57cec5SDimitry Andric    mismatch(InputIterator1 first1, InputIterator1 last1,
9090b57cec5SDimitry Andric             InputIterator2 first2, BinaryPredicate pred);
9100b57cec5SDimitry Andric
9110b57cec5SDimitry Andrictemplate <class InputIterator1, class InputIterator2, class BinaryPredicate>
9120b57cec5SDimitry Andric    constexpr pair<InputIterator1, InputIterator2>   // constexpr in C++20
9130b57cec5SDimitry Andric    mismatch(InputIterator1 first1, InputIterator1 last1,
9140b57cec5SDimitry Andric             InputIterator2 first2, InputIterator2 last2,
9150b57cec5SDimitry Andric             BinaryPredicate pred); // **C++14**
9160b57cec5SDimitry Andric
9170b57cec5SDimitry Andrictemplate <class InputIterator1, class InputIterator2>
9180b57cec5SDimitry Andric    constexpr bool      // constexpr in C++20
9190b57cec5SDimitry Andric    equal(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2);
9200b57cec5SDimitry Andric
9210b57cec5SDimitry Andrictemplate <class InputIterator1, class InputIterator2>
9220b57cec5SDimitry Andric    constexpr bool      // constexpr in C++20
9230b57cec5SDimitry Andric    equal(InputIterator1 first1, InputIterator1 last1,
9240b57cec5SDimitry Andric          InputIterator2 first2, InputIterator2 last2); // **C++14**
9250b57cec5SDimitry Andric
9260b57cec5SDimitry Andrictemplate <class InputIterator1, class InputIterator2, class BinaryPredicate>
9270b57cec5SDimitry Andric    constexpr bool      // constexpr in C++20
9280b57cec5SDimitry Andric    equal(InputIterator1 first1, InputIterator1 last1,
9290b57cec5SDimitry Andric          InputIterator2 first2, BinaryPredicate pred);
9300b57cec5SDimitry Andric
9310b57cec5SDimitry Andrictemplate <class InputIterator1, class InputIterator2, class BinaryPredicate>
9320b57cec5SDimitry Andric    constexpr bool      // constexpr in C++20
9330b57cec5SDimitry Andric    equal(InputIterator1 first1, InputIterator1 last1,
9340b57cec5SDimitry Andric          InputIterator2 first2, InputIterator2 last2,
9350b57cec5SDimitry Andric          BinaryPredicate pred); // **C++14**
9360b57cec5SDimitry Andric
9370b57cec5SDimitry Andrictemplate<class ForwardIterator1, class ForwardIterator2>
9380b57cec5SDimitry Andric    constexpr bool      // constexpr in C++20
9390b57cec5SDimitry Andric    is_permutation(ForwardIterator1 first1, ForwardIterator1 last1,
9400b57cec5SDimitry Andric                   ForwardIterator2 first2);
9410b57cec5SDimitry Andric
9420b57cec5SDimitry Andrictemplate<class ForwardIterator1, class ForwardIterator2>
9430b57cec5SDimitry Andric    constexpr bool      // constexpr in C++20
9440b57cec5SDimitry Andric    is_permutation(ForwardIterator1 first1, ForwardIterator1 last1,
9450b57cec5SDimitry Andric                   ForwardIterator2 first2, ForwardIterator2 last2); // **C++14**
9460b57cec5SDimitry Andric
9470b57cec5SDimitry Andrictemplate<class ForwardIterator1, class ForwardIterator2, class BinaryPredicate>
9480b57cec5SDimitry Andric    constexpr bool      // constexpr in C++20
9490b57cec5SDimitry Andric    is_permutation(ForwardIterator1 first1, ForwardIterator1 last1,
9500b57cec5SDimitry Andric                   ForwardIterator2 first2, BinaryPredicate pred);
9510b57cec5SDimitry Andric
9520b57cec5SDimitry Andrictemplate<class ForwardIterator1, class ForwardIterator2, class BinaryPredicate>
9530b57cec5SDimitry Andric    constexpr bool      // constexpr in C++20
9540b57cec5SDimitry Andric    is_permutation(ForwardIterator1 first1, ForwardIterator1 last1,
9550b57cec5SDimitry Andric                   ForwardIterator2 first2, ForwardIterator2 last2,
9560b57cec5SDimitry Andric                   BinaryPredicate pred);  // **C++14**
9570b57cec5SDimitry Andric
9580b57cec5SDimitry Andrictemplate <class ForwardIterator1, class ForwardIterator2>
9590b57cec5SDimitry Andric    constexpr ForwardIterator1      // constexpr in C++20
9600b57cec5SDimitry Andric    search(ForwardIterator1 first1, ForwardIterator1 last1,
9610b57cec5SDimitry Andric           ForwardIterator2 first2, ForwardIterator2 last2);
9620b57cec5SDimitry Andric
9630b57cec5SDimitry Andrictemplate <class ForwardIterator1, class ForwardIterator2, class BinaryPredicate>
9640b57cec5SDimitry Andric    constexpr ForwardIterator1      // constexpr in C++20
9650b57cec5SDimitry Andric    search(ForwardIterator1 first1, ForwardIterator1 last1,
9660b57cec5SDimitry Andric           ForwardIterator2 first2, ForwardIterator2 last2, BinaryPredicate pred);
9670b57cec5SDimitry Andric
9680b57cec5SDimitry Andrictemplate <class ForwardIterator, class Size, class T>
9690b57cec5SDimitry Andric    constexpr ForwardIterator       // constexpr in C++20
9700b57cec5SDimitry Andric    search_n(ForwardIterator first, ForwardIterator last, Size count, const T& value);
9710b57cec5SDimitry Andric
9720b57cec5SDimitry Andrictemplate <class ForwardIterator, class Size, class T, class BinaryPredicate>
9730b57cec5SDimitry Andric    constexpr ForwardIterator       // constexpr in C++20
9740b57cec5SDimitry Andric    search_n(ForwardIterator first, ForwardIterator last,
9750b57cec5SDimitry Andric             Size count, const T& value, BinaryPredicate pred);
9760b57cec5SDimitry Andric
9770b57cec5SDimitry Andrictemplate <class InputIterator, class OutputIterator>
978480093f4SDimitry Andric    constexpr OutputIterator      // constexpr in C++20
9790b57cec5SDimitry Andric    copy(InputIterator first, InputIterator last, OutputIterator result);
9800b57cec5SDimitry Andric
9810b57cec5SDimitry Andrictemplate<class InputIterator, class OutputIterator, class Predicate>
982480093f4SDimitry Andric    constexpr OutputIterator      // constexpr in C++20
9830b57cec5SDimitry Andric    copy_if(InputIterator first, InputIterator last,
9840b57cec5SDimitry Andric            OutputIterator result, Predicate pred);
9850b57cec5SDimitry Andric
9860b57cec5SDimitry Andrictemplate<class InputIterator, class Size, class OutputIterator>
987480093f4SDimitry Andric    constexpr OutputIterator      // constexpr in C++20
9880b57cec5SDimitry Andric    copy_n(InputIterator first, Size n, OutputIterator result);
9890b57cec5SDimitry Andric
9900b57cec5SDimitry Andrictemplate <class BidirectionalIterator1, class BidirectionalIterator2>
991480093f4SDimitry Andric    constexpr BidirectionalIterator2      // constexpr in C++20
9920b57cec5SDimitry Andric    copy_backward(BidirectionalIterator1 first, BidirectionalIterator1 last,
9930b57cec5SDimitry Andric                  BidirectionalIterator2 result);
9940b57cec5SDimitry Andric
99581ad6265SDimitry Andric// [alg.move], move
99681ad6265SDimitry Andrictemplate<class InputIterator, class OutputIterator>
99781ad6265SDimitry Andric    constexpr OutputIterator move(InputIterator first, InputIterator last,
99881ad6265SDimitry Andric                                OutputIterator result);
99981ad6265SDimitry Andric
100081ad6265SDimitry Andrictemplate<class BidirectionalIterator1, class BidirectionalIterator2>
100181ad6265SDimitry Andric    constexpr BidirectionalIterator2
100281ad6265SDimitry Andric    move_backward(BidirectionalIterator1 first, BidirectionalIterator1 last,
100381ad6265SDimitry Andric                  BidirectionalIterator2 result);
100481ad6265SDimitry Andric
10050b57cec5SDimitry Andrictemplate <class ForwardIterator1, class ForwardIterator2>
1006e8d8bef9SDimitry Andric    constexpr ForwardIterator2    // constexpr in C++20
10070b57cec5SDimitry Andric    swap_ranges(ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2);
10080b57cec5SDimitry Andric
100981ad6265SDimitry Andricnamespace ranges {
101081ad6265SDimitry Andric    template<class I1, class I2>
101181ad6265SDimitry Andric    using swap_ranges_result = in_in_result<I1, I2>;
101281ad6265SDimitry Andric
101381ad6265SDimitry Andrictemplate<input_iterator I1, sentinel_for<I1> S1, input_iterator I2, sentinel_for<I2> S2>
101481ad6265SDimitry Andric        requires indirectly_swappable<I1, I2>
101581ad6265SDimitry Andric    constexpr ranges::swap_ranges_result<I1, I2>
101681ad6265SDimitry Andric        swap_ranges(I1 first1, S1 last1, I2 first2, S2 last2);
101781ad6265SDimitry Andric
101881ad6265SDimitry Andrictemplate<input_range R1, input_range R2>
101981ad6265SDimitry Andric        requires indirectly_swappable<iterator_t<R1>, iterator_t<R2>>
102081ad6265SDimitry Andric    constexpr ranges::swap_ranges_result<borrowed_iterator_t<R1>, borrowed_iterator_t<R2>>
102181ad6265SDimitry Andric        swap_ranges(R1&& r1, R2&& r2);
102281ad6265SDimitry Andric}
102381ad6265SDimitry Andric
10240b57cec5SDimitry Andrictemplate <class ForwardIterator1, class ForwardIterator2>
1025e8d8bef9SDimitry Andric    constexpr void                // constexpr in C++20
10260b57cec5SDimitry Andric    iter_swap(ForwardIterator1 a, ForwardIterator2 b);
10270b57cec5SDimitry Andric
10280b57cec5SDimitry Andrictemplate <class InputIterator, class OutputIterator, class UnaryOperation>
10290b57cec5SDimitry Andric    constexpr OutputIterator      // constexpr in C++20
10300b57cec5SDimitry Andric    transform(InputIterator first, InputIterator last, OutputIterator result, UnaryOperation op);
10310b57cec5SDimitry Andric
10320b57cec5SDimitry Andrictemplate <class InputIterator1, class InputIterator2, class OutputIterator, class BinaryOperation>
10330b57cec5SDimitry Andric    constexpr OutputIterator      // constexpr in C++20
10340b57cec5SDimitry Andric    transform(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2,
10350b57cec5SDimitry Andric              OutputIterator result, BinaryOperation binary_op);
10360b57cec5SDimitry Andric
10370b57cec5SDimitry Andrictemplate <class ForwardIterator, class T>
10380b57cec5SDimitry Andric    constexpr void      // constexpr in C++20
10390b57cec5SDimitry Andric    replace(ForwardIterator first, ForwardIterator last, const T& old_value, const T& new_value);
10400b57cec5SDimitry Andric
10410b57cec5SDimitry Andrictemplate <class ForwardIterator, class Predicate, class T>
10420b57cec5SDimitry Andric    constexpr void      // constexpr in C++20
10430b57cec5SDimitry Andric    replace_if(ForwardIterator first, ForwardIterator last, Predicate pred, const T& new_value);
10440b57cec5SDimitry Andric
10450b57cec5SDimitry Andrictemplate <class InputIterator, class OutputIterator, class T>
10460b57cec5SDimitry Andric    constexpr OutputIterator      // constexpr in C++20
10470b57cec5SDimitry Andric    replace_copy(InputIterator first, InputIterator last, OutputIterator result,
10480b57cec5SDimitry Andric                 const T& old_value, const T& new_value);
10490b57cec5SDimitry Andric
10500b57cec5SDimitry Andrictemplate <class InputIterator, class OutputIterator, class Predicate, class T>
10510b57cec5SDimitry Andric    constexpr OutputIterator      // constexpr in C++20
10520b57cec5SDimitry Andric    replace_copy_if(InputIterator first, InputIterator last, OutputIterator result, Predicate pred, const T& new_value);
10530b57cec5SDimitry Andric
10540b57cec5SDimitry Andrictemplate <class ForwardIterator, class T>
10550b57cec5SDimitry Andric    constexpr void      // constexpr in C++20
10560b57cec5SDimitry Andric    fill(ForwardIterator first, ForwardIterator last, const T& value);
10570b57cec5SDimitry Andric
10580b57cec5SDimitry Andrictemplate <class OutputIterator, class Size, class T>
10590b57cec5SDimitry Andric    constexpr OutputIterator      // constexpr in C++20
10600b57cec5SDimitry Andric    fill_n(OutputIterator first, Size n, const T& value);
10610b57cec5SDimitry Andric
10620b57cec5SDimitry Andrictemplate <class ForwardIterator, class Generator>
10630b57cec5SDimitry Andric    constexpr void      // constexpr in C++20
10640b57cec5SDimitry Andric    generate(ForwardIterator first, ForwardIterator last, Generator gen);
10650b57cec5SDimitry Andric
10660b57cec5SDimitry Andrictemplate <class OutputIterator, class Size, class Generator>
10670b57cec5SDimitry Andric    constexpr OutputIterator      // constexpr in C++20
10680b57cec5SDimitry Andric    generate_n(OutputIterator first, Size n, Generator gen);
10690b57cec5SDimitry Andric
10700b57cec5SDimitry Andrictemplate <class ForwardIterator, class T>
10710b57cec5SDimitry Andric    constexpr ForwardIterator     // constexpr in C++20
10720b57cec5SDimitry Andric    remove(ForwardIterator first, ForwardIterator last, const T& value);
10730b57cec5SDimitry Andric
10740b57cec5SDimitry Andrictemplate <class ForwardIterator, class Predicate>
10750b57cec5SDimitry Andric    constexpr ForwardIterator     // constexpr in C++20
10760b57cec5SDimitry Andric    remove_if(ForwardIterator first, ForwardIterator last, Predicate pred);
10770b57cec5SDimitry Andric
10780b57cec5SDimitry Andrictemplate <class InputIterator, class OutputIterator, class T>
10790b57cec5SDimitry Andric    constexpr OutputIterator     // constexpr in C++20
10800b57cec5SDimitry Andric    remove_copy(InputIterator first, InputIterator last, OutputIterator result, const T& value);
10810b57cec5SDimitry Andric
10820b57cec5SDimitry Andrictemplate <class InputIterator, class OutputIterator, class Predicate>
10830b57cec5SDimitry Andric    constexpr OutputIterator     // constexpr in C++20
10840b57cec5SDimitry Andric    remove_copy_if(InputIterator first, InputIterator last, OutputIterator result, Predicate pred);
10850b57cec5SDimitry Andric
10860b57cec5SDimitry Andrictemplate <class ForwardIterator>
1087e8d8bef9SDimitry Andric    constexpr ForwardIterator    // constexpr in C++20
10880b57cec5SDimitry Andric    unique(ForwardIterator first, ForwardIterator last);
10890b57cec5SDimitry Andric
10900b57cec5SDimitry Andrictemplate <class ForwardIterator, class BinaryPredicate>
1091e8d8bef9SDimitry Andric    constexpr ForwardIterator    // constexpr in C++20
10920b57cec5SDimitry Andric    unique(ForwardIterator first, ForwardIterator last, BinaryPredicate pred);
10930b57cec5SDimitry Andric
10940b57cec5SDimitry Andrictemplate <class InputIterator, class OutputIterator>
1095e8d8bef9SDimitry Andric    constexpr OutputIterator     // constexpr in C++20
10960b57cec5SDimitry Andric    unique_copy(InputIterator first, InputIterator last, OutputIterator result);
10970b57cec5SDimitry Andric
10980b57cec5SDimitry Andrictemplate <class InputIterator, class OutputIterator, class BinaryPredicate>
1099e8d8bef9SDimitry Andric    constexpr OutputIterator     // constexpr in C++20
11000b57cec5SDimitry Andric    unique_copy(InputIterator first, InputIterator last, OutputIterator result, BinaryPredicate pred);
11010b57cec5SDimitry Andric
11020b57cec5SDimitry Andrictemplate <class BidirectionalIterator>
1103e8d8bef9SDimitry Andric    constexpr void               // constexpr in C++20
11040b57cec5SDimitry Andric    reverse(BidirectionalIterator first, BidirectionalIterator last);
11050b57cec5SDimitry Andric
11060b57cec5SDimitry Andrictemplate <class BidirectionalIterator, class OutputIterator>
11070b57cec5SDimitry Andric    constexpr OutputIterator       // constexpr in C++20
11080b57cec5SDimitry Andric    reverse_copy(BidirectionalIterator first, BidirectionalIterator last, OutputIterator result);
11090b57cec5SDimitry Andric
11100b57cec5SDimitry Andrictemplate <class ForwardIterator>
1111e8d8bef9SDimitry Andric    constexpr ForwardIterator      // constexpr in C++20
11120b57cec5SDimitry Andric    rotate(ForwardIterator first, ForwardIterator middle, ForwardIterator last);
11130b57cec5SDimitry Andric
11140b57cec5SDimitry Andrictemplate <class ForwardIterator, class OutputIterator>
1115e8d8bef9SDimitry Andric    constexpr OutputIterator       // constexpr in C++20
11160b57cec5SDimitry Andric    rotate_copy(ForwardIterator first, ForwardIterator middle, ForwardIterator last, OutputIterator result);
11170b57cec5SDimitry Andric
11180b57cec5SDimitry Andrictemplate <class RandomAccessIterator>
11190b57cec5SDimitry Andric    void
11200b57cec5SDimitry Andric    random_shuffle(RandomAccessIterator first, RandomAccessIterator last); // deprecated in C++14, removed in C++17
11210b57cec5SDimitry Andric
11220b57cec5SDimitry Andrictemplate <class RandomAccessIterator, class RandomNumberGenerator>
11230b57cec5SDimitry Andric    void
11240b57cec5SDimitry Andric    random_shuffle(RandomAccessIterator first, RandomAccessIterator last,
11250b57cec5SDimitry Andric                   RandomNumberGenerator& rand);  // deprecated in C++14, removed in C++17
11260b57cec5SDimitry Andric
11270b57cec5SDimitry Andrictemplate<class PopulationIterator, class SampleIterator,
11280b57cec5SDimitry Andric         class Distance, class UniformRandomBitGenerator>
11290b57cec5SDimitry Andric    SampleIterator sample(PopulationIterator first, PopulationIterator last,
11300b57cec5SDimitry Andric                          SampleIterator out, Distance n,
11310b57cec5SDimitry Andric                          UniformRandomBitGenerator&& g); // C++17
11320b57cec5SDimitry Andric
11330b57cec5SDimitry Andrictemplate<class RandomAccessIterator, class UniformRandomNumberGenerator>
11340b57cec5SDimitry Andric    void shuffle(RandomAccessIterator first, RandomAccessIterator last,
11350b57cec5SDimitry Andric                 UniformRandomNumberGenerator&& g);
11360b57cec5SDimitry Andric
1137e8d8bef9SDimitry Andrictemplate<class ForwardIterator>
1138e8d8bef9SDimitry Andric  constexpr ForwardIterator
1139e8d8bef9SDimitry Andric    shift_left(ForwardIterator first, ForwardIterator last,
1140e8d8bef9SDimitry Andric               typename iterator_traits<ForwardIterator>::difference_type n); // C++20
1141e8d8bef9SDimitry Andric
1142e8d8bef9SDimitry Andrictemplate<class ForwardIterator>
1143e8d8bef9SDimitry Andric  constexpr ForwardIterator
1144e8d8bef9SDimitry Andric    shift_right(ForwardIterator first, ForwardIterator last,
1145e8d8bef9SDimitry Andric                typename iterator_traits<ForwardIterator>::difference_type n); // C++20
1146e8d8bef9SDimitry Andric
11470b57cec5SDimitry Andrictemplate <class InputIterator, class Predicate>
11480b57cec5SDimitry Andric    constexpr bool  // constexpr in C++20
11490b57cec5SDimitry Andric    is_partitioned(InputIterator first, InputIterator last, Predicate pred);
11500b57cec5SDimitry Andric
11510b57cec5SDimitry Andrictemplate <class ForwardIterator, class Predicate>
1152e8d8bef9SDimitry Andric    constexpr ForwardIterator  // constexpr in C++20
11530b57cec5SDimitry Andric    partition(ForwardIterator first, ForwardIterator last, Predicate pred);
11540b57cec5SDimitry Andric
11550b57cec5SDimitry Andrictemplate <class InputIterator, class OutputIterator1,
11560b57cec5SDimitry Andric          class OutputIterator2, class Predicate>
11570b57cec5SDimitry Andric    constexpr pair<OutputIterator1, OutputIterator2>   // constexpr in C++20
11580b57cec5SDimitry Andric    partition_copy(InputIterator first, InputIterator last,
11590b57cec5SDimitry Andric                   OutputIterator1 out_true, OutputIterator2 out_false,
11600b57cec5SDimitry Andric                   Predicate pred);
11610b57cec5SDimitry Andric
11620b57cec5SDimitry Andrictemplate <class ForwardIterator, class Predicate>
11630b57cec5SDimitry Andric    ForwardIterator
11640b57cec5SDimitry Andric    stable_partition(ForwardIterator first, ForwardIterator last, Predicate pred);
11650b57cec5SDimitry Andric
11660b57cec5SDimitry Andrictemplate<class ForwardIterator, class Predicate>
11670b57cec5SDimitry Andric    constexpr ForwardIterator  // constexpr in C++20
11680b57cec5SDimitry Andric    partition_point(ForwardIterator first, ForwardIterator last, Predicate pred);
11690b57cec5SDimitry Andric
11700b57cec5SDimitry Andrictemplate <class ForwardIterator>
11710b57cec5SDimitry Andric    constexpr bool  // constexpr in C++20
11720b57cec5SDimitry Andric    is_sorted(ForwardIterator first, ForwardIterator last);
11730b57cec5SDimitry Andric
11740b57cec5SDimitry Andrictemplate <class ForwardIterator, class Compare>
1175e8d8bef9SDimitry Andric    constexpr bool  // constexpr in C++20
11760b57cec5SDimitry Andric    is_sorted(ForwardIterator first, ForwardIterator last, Compare comp);
11770b57cec5SDimitry Andric
11780b57cec5SDimitry Andrictemplate<class ForwardIterator>
11790b57cec5SDimitry Andric    constexpr ForwardIterator    // constexpr in C++20
11800b57cec5SDimitry Andric    is_sorted_until(ForwardIterator first, ForwardIterator last);
11810b57cec5SDimitry Andric
11820b57cec5SDimitry Andrictemplate <class ForwardIterator, class Compare>
11830b57cec5SDimitry Andric    constexpr ForwardIterator    // constexpr in C++20
11840b57cec5SDimitry Andric    is_sorted_until(ForwardIterator first, ForwardIterator last, Compare comp);
11850b57cec5SDimitry Andric
11860b57cec5SDimitry Andrictemplate <class RandomAccessIterator>
1187fe6060f1SDimitry Andric    constexpr void               // constexpr in C++20
11880b57cec5SDimitry Andric    sort(RandomAccessIterator first, RandomAccessIterator last);
11890b57cec5SDimitry Andric
11900b57cec5SDimitry Andrictemplate <class RandomAccessIterator, class Compare>
1191fe6060f1SDimitry Andric    constexpr void               // constexpr in C++20
11920b57cec5SDimitry Andric    sort(RandomAccessIterator first, RandomAccessIterator last, Compare comp);
11930b57cec5SDimitry Andric
11940b57cec5SDimitry Andrictemplate <class RandomAccessIterator>
11950b57cec5SDimitry Andric    void
11960b57cec5SDimitry Andric    stable_sort(RandomAccessIterator first, RandomAccessIterator last);
11970b57cec5SDimitry Andric
11980b57cec5SDimitry Andrictemplate <class RandomAccessIterator, class Compare>
11990b57cec5SDimitry Andric    void
12000b57cec5SDimitry Andric    stable_sort(RandomAccessIterator first, RandomAccessIterator last, Compare comp);
12010b57cec5SDimitry Andric
12020b57cec5SDimitry Andrictemplate <class RandomAccessIterator>
1203fe6060f1SDimitry Andric    constexpr void                    // constexpr in C++20
12040b57cec5SDimitry Andric    partial_sort(RandomAccessIterator first, RandomAccessIterator middle, RandomAccessIterator last);
12050b57cec5SDimitry Andric
12060b57cec5SDimitry Andrictemplate <class RandomAccessIterator, class Compare>
1207fe6060f1SDimitry Andric    constexpr void                    // constexpr in C++20
12080b57cec5SDimitry Andric    partial_sort(RandomAccessIterator first, RandomAccessIterator middle, RandomAccessIterator last, Compare comp);
12090b57cec5SDimitry Andric
12100b57cec5SDimitry Andrictemplate <class InputIterator, class RandomAccessIterator>
1211fe6060f1SDimitry Andric    constexpr RandomAccessIterator    // constexpr in C++20
12120b57cec5SDimitry Andric    partial_sort_copy(InputIterator first, InputIterator last,
12130b57cec5SDimitry Andric                      RandomAccessIterator result_first, RandomAccessIterator result_last);
12140b57cec5SDimitry Andric
12150b57cec5SDimitry Andrictemplate <class InputIterator, class RandomAccessIterator, class Compare>
1216fe6060f1SDimitry Andric    constexpr RandomAccessIterator    // constexpr in C++20
12170b57cec5SDimitry Andric    partial_sort_copy(InputIterator first, InputIterator last,
12180b57cec5SDimitry Andric                      RandomAccessIterator result_first, RandomAccessIterator result_last, Compare comp);
12190b57cec5SDimitry Andric
12200b57cec5SDimitry Andrictemplate <class RandomAccessIterator>
1221fe6060f1SDimitry Andric    constexpr void                    // constexpr in C++20
12220b57cec5SDimitry Andric    nth_element(RandomAccessIterator first, RandomAccessIterator nth, RandomAccessIterator last);
12230b57cec5SDimitry Andric
12240b57cec5SDimitry Andrictemplate <class RandomAccessIterator, class Compare>
1225fe6060f1SDimitry Andric    constexpr void                    // constexpr in C++20
12260b57cec5SDimitry Andric    nth_element(RandomAccessIterator first, RandomAccessIterator nth, RandomAccessIterator last, Compare comp);
12270b57cec5SDimitry Andric
12280b57cec5SDimitry Andrictemplate <class ForwardIterator, class T>
12290b57cec5SDimitry Andric    constexpr ForwardIterator                         // constexpr in C++20
12300b57cec5SDimitry Andric    lower_bound(ForwardIterator first, ForwardIterator last, const T& value);
12310b57cec5SDimitry Andric
12320b57cec5SDimitry Andrictemplate <class ForwardIterator, class T, class Compare>
12330b57cec5SDimitry Andric    constexpr ForwardIterator                         // constexpr in C++20
12340b57cec5SDimitry Andric    lower_bound(ForwardIterator first, ForwardIterator last, const T& value, Compare comp);
12350b57cec5SDimitry Andric
12360b57cec5SDimitry Andrictemplate <class ForwardIterator, class T>
12370b57cec5SDimitry Andric    constexpr ForwardIterator                         // constexpr in C++20
12380b57cec5SDimitry Andric    upper_bound(ForwardIterator first, ForwardIterator last, const T& value);
12390b57cec5SDimitry Andric
12400b57cec5SDimitry Andrictemplate <class ForwardIterator, class T, class Compare>
12410b57cec5SDimitry Andric    constexpr ForwardIterator                         // constexpr in C++20
12420b57cec5SDimitry Andric    upper_bound(ForwardIterator first, ForwardIterator last, const T& value, Compare comp);
12430b57cec5SDimitry Andric
12440b57cec5SDimitry Andrictemplate <class ForwardIterator, class T>
12450b57cec5SDimitry Andric    constexpr pair<ForwardIterator, ForwardIterator>  // constexpr in C++20
12460b57cec5SDimitry Andric    equal_range(ForwardIterator first, ForwardIterator last, const T& value);
12470b57cec5SDimitry Andric
12480b57cec5SDimitry Andrictemplate <class ForwardIterator, class T, class Compare>
12490b57cec5SDimitry Andric    constexpr pair<ForwardIterator, ForwardIterator>  // constexpr in C++20
12500b57cec5SDimitry Andric    equal_range(ForwardIterator first, ForwardIterator last, const T& value, Compare comp);
12510b57cec5SDimitry Andric
12520b57cec5SDimitry Andrictemplate <class ForwardIterator, class T>
12530b57cec5SDimitry Andric    constexpr bool                                    // constexpr in C++20
12540b57cec5SDimitry Andric    binary_search(ForwardIterator first, ForwardIterator last, const T& value);
12550b57cec5SDimitry Andric
12560b57cec5SDimitry Andrictemplate <class ForwardIterator, class T, class Compare>
12570b57cec5SDimitry Andric    constexpr bool                                    // constexpr in C++20
12580b57cec5SDimitry Andric    binary_search(ForwardIterator first, ForwardIterator last, const T& value, Compare comp);
12590b57cec5SDimitry Andric
12600b57cec5SDimitry Andrictemplate <class InputIterator1, class InputIterator2, class OutputIterator>
1261e8d8bef9SDimitry Andric    constexpr OutputIterator                          // constexpr in C++20
12620b57cec5SDimitry Andric    merge(InputIterator1 first1, InputIterator1 last1,
12630b57cec5SDimitry Andric          InputIterator2 first2, InputIterator2 last2, OutputIterator result);
12640b57cec5SDimitry Andric
12650b57cec5SDimitry Andrictemplate <class InputIterator1, class InputIterator2, class OutputIterator, class Compare>
1266e8d8bef9SDimitry Andric    constexpr OutputIterator                          // constexpr in C++20
12670b57cec5SDimitry Andric    merge(InputIterator1 first1, InputIterator1 last1,
12680b57cec5SDimitry Andric          InputIterator2 first2, InputIterator2 last2, OutputIterator result, Compare comp);
12690b57cec5SDimitry Andric
12700b57cec5SDimitry Andrictemplate <class BidirectionalIterator>
12710b57cec5SDimitry Andric    void
12720b57cec5SDimitry Andric    inplace_merge(BidirectionalIterator first, BidirectionalIterator middle, BidirectionalIterator last);
12730b57cec5SDimitry Andric
12740b57cec5SDimitry Andrictemplate <class BidirectionalIterator, class Compare>
12750b57cec5SDimitry Andric    void
12760b57cec5SDimitry Andric    inplace_merge(BidirectionalIterator first, BidirectionalIterator middle, BidirectionalIterator last, Compare comp);
12770b57cec5SDimitry Andric
12780b57cec5SDimitry Andrictemplate <class InputIterator1, class InputIterator2>
12790b57cec5SDimitry Andric    constexpr bool                                    // constexpr in C++20
12800b57cec5SDimitry Andric    includes(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2);
12810b57cec5SDimitry Andric
12820b57cec5SDimitry Andrictemplate <class InputIterator1, class InputIterator2, class Compare>
12830b57cec5SDimitry Andric    constexpr bool                                    // constexpr in C++20
12840b57cec5SDimitry Andric    includes(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2, Compare comp);
12850b57cec5SDimitry Andric
12860b57cec5SDimitry Andrictemplate <class InputIterator1, class InputIterator2, class OutputIterator>
1287e8d8bef9SDimitry Andric    constexpr OutputIterator                          // constexpr in C++20
12880b57cec5SDimitry Andric    set_union(InputIterator1 first1, InputIterator1 last1,
12890b57cec5SDimitry Andric              InputIterator2 first2, InputIterator2 last2, OutputIterator result);
12900b57cec5SDimitry Andric
12910b57cec5SDimitry Andrictemplate <class InputIterator1, class InputIterator2, class OutputIterator, class Compare>
1292e8d8bef9SDimitry Andric    constexpr OutputIterator                          // constexpr in C++20
12930b57cec5SDimitry Andric    set_union(InputIterator1 first1, InputIterator1 last1,
12940b57cec5SDimitry Andric              InputIterator2 first2, InputIterator2 last2, OutputIterator result, Compare comp);
12950b57cec5SDimitry Andric
12960b57cec5SDimitry Andrictemplate <class InputIterator1, class InputIterator2, class OutputIterator>
12970b57cec5SDimitry Andric    constexpr OutputIterator                         // constexpr in C++20
12980b57cec5SDimitry Andric    set_intersection(InputIterator1 first1, InputIterator1 last1,
12990b57cec5SDimitry Andric                     InputIterator2 first2, InputIterator2 last2, OutputIterator result);
13000b57cec5SDimitry Andric
13010b57cec5SDimitry Andrictemplate <class InputIterator1, class InputIterator2, class OutputIterator, class Compare>
13020b57cec5SDimitry Andric    constexpr OutputIterator                         // constexpr in C++20
13030b57cec5SDimitry Andric    set_intersection(InputIterator1 first1, InputIterator1 last1,
13040b57cec5SDimitry Andric                     InputIterator2 first2, InputIterator2 last2, OutputIterator result, Compare comp);
13050b57cec5SDimitry Andric
13060b57cec5SDimitry Andrictemplate <class InputIterator1, class InputIterator2, class OutputIterator>
1307e8d8bef9SDimitry Andric    constexpr OutputIterator                         // constexpr in C++20
13080b57cec5SDimitry Andric    set_difference(InputIterator1 first1, InputIterator1 last1,
13090b57cec5SDimitry Andric                   InputIterator2 first2, InputIterator2 last2, OutputIterator result);
13100b57cec5SDimitry Andric
13110b57cec5SDimitry Andrictemplate <class InputIterator1, class InputIterator2, class OutputIterator, class Compare>
1312e8d8bef9SDimitry Andric    constexpr OutputIterator                         // constexpr in C++20
13130b57cec5SDimitry Andric    set_difference(InputIterator1 first1, InputIterator1 last1,
13140b57cec5SDimitry Andric                   InputIterator2 first2, InputIterator2 last2, OutputIterator result, Compare comp);
13150b57cec5SDimitry Andric
13160b57cec5SDimitry Andrictemplate <class InputIterator1, class InputIterator2, class OutputIterator>
1317e8d8bef9SDimitry Andric    constexpr OutputIterator                         // constexpr in C++20
13180b57cec5SDimitry Andric    set_symmetric_difference(InputIterator1 first1, InputIterator1 last1,
13190b57cec5SDimitry Andric                             InputIterator2 first2, InputIterator2 last2, OutputIterator result);
13200b57cec5SDimitry Andric
13210b57cec5SDimitry Andrictemplate <class InputIterator1, class InputIterator2, class OutputIterator, class Compare>
1322e8d8bef9SDimitry Andric    constexpr OutputIterator                         // constexpr in C++20
13230b57cec5SDimitry Andric    set_symmetric_difference(InputIterator1 first1, InputIterator1 last1,
13240b57cec5SDimitry Andric                             InputIterator2 first2, InputIterator2 last2, OutputIterator result, Compare comp);
13250b57cec5SDimitry Andric
13260b57cec5SDimitry Andrictemplate <class RandomAccessIterator>
1327fe6060f1SDimitry Andric    constexpr void                                   // constexpr in C++20
13280b57cec5SDimitry Andric    push_heap(RandomAccessIterator first, RandomAccessIterator last);
13290b57cec5SDimitry Andric
13300b57cec5SDimitry Andrictemplate <class RandomAccessIterator, class Compare>
1331fe6060f1SDimitry Andric    constexpr void                                   // constexpr in C++20
13320b57cec5SDimitry Andric    push_heap(RandomAccessIterator first, RandomAccessIterator last, Compare comp);
13330b57cec5SDimitry Andric
13340b57cec5SDimitry Andrictemplate <class RandomAccessIterator>
1335fe6060f1SDimitry Andric    constexpr void                                   // constexpr in C++20
13360b57cec5SDimitry Andric    pop_heap(RandomAccessIterator first, RandomAccessIterator last);
13370b57cec5SDimitry Andric
13380b57cec5SDimitry Andrictemplate <class RandomAccessIterator, class Compare>
1339fe6060f1SDimitry Andric    constexpr void                                   // constexpr in C++20
13400b57cec5SDimitry Andric    pop_heap(RandomAccessIterator first, RandomAccessIterator last, Compare comp);
13410b57cec5SDimitry Andric
13420b57cec5SDimitry Andrictemplate <class RandomAccessIterator>
1343fe6060f1SDimitry Andric    constexpr void                                   // constexpr in C++20
13440b57cec5SDimitry Andric    make_heap(RandomAccessIterator first, RandomAccessIterator last);
13450b57cec5SDimitry Andric
13460b57cec5SDimitry Andrictemplate <class RandomAccessIterator, class Compare>
1347fe6060f1SDimitry Andric    constexpr void                                   // constexpr in C++20
13480b57cec5SDimitry Andric    make_heap(RandomAccessIterator first, RandomAccessIterator last, Compare comp);
13490b57cec5SDimitry Andric
13500b57cec5SDimitry Andrictemplate <class RandomAccessIterator>
1351fe6060f1SDimitry Andric    constexpr void                                   // constexpr in C++20
13520b57cec5SDimitry Andric    sort_heap(RandomAccessIterator first, RandomAccessIterator last);
13530b57cec5SDimitry Andric
13540b57cec5SDimitry Andrictemplate <class RandomAccessIterator, class Compare>
1355fe6060f1SDimitry Andric    constexpr void                                   // constexpr in C++20
13560b57cec5SDimitry Andric    sort_heap(RandomAccessIterator first, RandomAccessIterator last, Compare comp);
13570b57cec5SDimitry Andric
13580b57cec5SDimitry Andrictemplate <class RandomAccessIterator>
13590b57cec5SDimitry Andric    constexpr bool   // constexpr in C++20
13600b57cec5SDimitry Andric    is_heap(RandomAccessIterator first, RandomAccessiterator last);
13610b57cec5SDimitry Andric
13620b57cec5SDimitry Andrictemplate <class RandomAccessIterator, class Compare>
13630b57cec5SDimitry Andric    constexpr bool   // constexpr in C++20
13640b57cec5SDimitry Andric    is_heap(RandomAccessIterator first, RandomAccessiterator last, Compare comp);
13650b57cec5SDimitry Andric
13660b57cec5SDimitry Andrictemplate <class RandomAccessIterator>
13670b57cec5SDimitry Andric    constexpr RandomAccessIterator   // constexpr in C++20
13680b57cec5SDimitry Andric    is_heap_until(RandomAccessIterator first, RandomAccessiterator last);
13690b57cec5SDimitry Andric
13700b57cec5SDimitry Andrictemplate <class RandomAccessIterator, class Compare>
13710b57cec5SDimitry Andric    constexpr RandomAccessIterator   // constexpr in C++20
13720b57cec5SDimitry Andric    is_heap_until(RandomAccessIterator first, RandomAccessiterator last, Compare comp);
13730b57cec5SDimitry Andric
13740b57cec5SDimitry Andrictemplate <class ForwardIterator>
1375e8d8bef9SDimitry Andric    constexpr ForwardIterator        // constexpr in C++14
1376e8d8bef9SDimitry Andric    min_element(ForwardIterator first, ForwardIterator last);
13770b57cec5SDimitry Andric
13780b57cec5SDimitry Andrictemplate <class ForwardIterator, class Compare>
1379e8d8bef9SDimitry Andric    constexpr ForwardIterator        // constexpr in C++14
1380e8d8bef9SDimitry Andric    min_element(ForwardIterator first, ForwardIterator last, Compare comp);
13810b57cec5SDimitry Andric
13820b57cec5SDimitry Andrictemplate <class T>
1383e8d8bef9SDimitry Andric    constexpr const T&               // constexpr in C++14
1384e8d8bef9SDimitry Andric    min(const T& a, const T& b);
13850b57cec5SDimitry Andric
13860b57cec5SDimitry Andrictemplate <class T, class Compare>
1387e8d8bef9SDimitry Andric    constexpr const T&               // constexpr in C++14
1388e8d8bef9SDimitry Andric    min(const T& a, const T& b, Compare comp);
13890b57cec5SDimitry Andric
13900b57cec5SDimitry Andrictemplate<class T>
1391e8d8bef9SDimitry Andric    constexpr T                      // constexpr in C++14
1392e8d8bef9SDimitry Andric    min(initializer_list<T> t);
13930b57cec5SDimitry Andric
13940b57cec5SDimitry Andrictemplate<class T, class Compare>
1395e8d8bef9SDimitry Andric    constexpr T                      // constexpr in C++14
1396e8d8bef9SDimitry Andric    min(initializer_list<T> t, Compare comp);
13970b57cec5SDimitry Andric
13980b57cec5SDimitry Andrictemplate<class T>
13990b57cec5SDimitry Andric    constexpr const T& clamp(const T& v, const T& lo, const T& hi);               // C++17
14000b57cec5SDimitry Andric
14010b57cec5SDimitry Andrictemplate<class T, class Compare>
14020b57cec5SDimitry Andric    constexpr const T& clamp(const T& v, const T& lo, const T& hi, Compare comp); // C++17
14030b57cec5SDimitry Andric
14040b57cec5SDimitry Andrictemplate <class ForwardIterator>
1405e8d8bef9SDimitry Andric    constexpr ForwardIterator        // constexpr in C++14
1406e8d8bef9SDimitry Andric    max_element(ForwardIterator first, ForwardIterator last);
14070b57cec5SDimitry Andric
14080b57cec5SDimitry Andrictemplate <class ForwardIterator, class Compare>
1409e8d8bef9SDimitry Andric    constexpr ForwardIterator        // constexpr in C++14
1410e8d8bef9SDimitry Andric    max_element(ForwardIterator first, ForwardIterator last, Compare comp);
14110b57cec5SDimitry Andric
14120b57cec5SDimitry Andrictemplate <class T>
1413e8d8bef9SDimitry Andric    constexpr const T&               // constexpr in C++14
1414e8d8bef9SDimitry Andric    max(const T& a, const T& b);
14150b57cec5SDimitry Andric
14160b57cec5SDimitry Andrictemplate <class T, class Compare>
1417e8d8bef9SDimitry Andric    constexpr const T&               // constexpr in C++14
1418e8d8bef9SDimitry Andric    max(const T& a, const T& b, Compare comp);
14190b57cec5SDimitry Andric
14200b57cec5SDimitry Andrictemplate<class T>
1421e8d8bef9SDimitry Andric    constexpr T                      // constexpr in C++14
1422e8d8bef9SDimitry Andric    max(initializer_list<T> t);
14230b57cec5SDimitry Andric
14240b57cec5SDimitry Andrictemplate<class T, class Compare>
1425e8d8bef9SDimitry Andric    constexpr T                      // constexpr in C++14
1426e8d8bef9SDimitry Andric    max(initializer_list<T> t, Compare comp);
14270b57cec5SDimitry Andric
14280b57cec5SDimitry Andrictemplate<class ForwardIterator>
1429e8d8bef9SDimitry Andric    constexpr pair<ForwardIterator, ForwardIterator>  // constexpr in C++14
1430e8d8bef9SDimitry Andric    minmax_element(ForwardIterator first, ForwardIterator last);
14310b57cec5SDimitry Andric
14320b57cec5SDimitry Andrictemplate<class ForwardIterator, class Compare>
1433e8d8bef9SDimitry Andric    constexpr pair<ForwardIterator, ForwardIterator>  // constexpr in C++14
1434e8d8bef9SDimitry Andric    minmax_element(ForwardIterator first, ForwardIterator last, Compare comp);
14350b57cec5SDimitry Andric
14360b57cec5SDimitry Andrictemplate<class T>
1437e8d8bef9SDimitry Andric    constexpr pair<const T&, const T&>  // constexpr in C++14
1438e8d8bef9SDimitry Andric    minmax(const T& a, const T& b);
14390b57cec5SDimitry Andric
14400b57cec5SDimitry Andrictemplate<class T, class Compare>
1441e8d8bef9SDimitry Andric    constexpr pair<const T&, const T&>  // constexpr in C++14
1442e8d8bef9SDimitry Andric    minmax(const T& a, const T& b, Compare comp);
14430b57cec5SDimitry Andric
14440b57cec5SDimitry Andrictemplate<class T>
1445e8d8bef9SDimitry Andric    constexpr pair<T, T>                // constexpr in C++14
1446e8d8bef9SDimitry Andric    minmax(initializer_list<T> t);
14470b57cec5SDimitry Andric
14480b57cec5SDimitry Andrictemplate<class T, class Compare>
1449e8d8bef9SDimitry Andric    constexpr pair<T, T>                // constexpr in C++14
1450e8d8bef9SDimitry Andric    minmax(initializer_list<T> t, Compare comp);
14510b57cec5SDimitry Andric
14520b57cec5SDimitry Andrictemplate <class InputIterator1, class InputIterator2>
14530b57cec5SDimitry Andric    constexpr bool     // constexpr in C++20
14540b57cec5SDimitry Andric    lexicographical_compare(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2);
14550b57cec5SDimitry Andric
14560b57cec5SDimitry Andrictemplate <class InputIterator1, class InputIterator2, class Compare>
14570b57cec5SDimitry Andric    constexpr bool     // constexpr in C++20
14580b57cec5SDimitry Andric    lexicographical_compare(InputIterator1 first1, InputIterator1 last1,
14590b57cec5SDimitry Andric                            InputIterator2 first2, InputIterator2 last2, Compare comp);
14600b57cec5SDimitry Andric
14610b57cec5SDimitry Andrictemplate <class BidirectionalIterator>
1462e8d8bef9SDimitry Andric    constexpr bool     // constexpr in C++20
14630b57cec5SDimitry Andric    next_permutation(BidirectionalIterator first, BidirectionalIterator last);
14640b57cec5SDimitry Andric
14650b57cec5SDimitry Andrictemplate <class BidirectionalIterator, class Compare>
1466e8d8bef9SDimitry Andric    constexpr bool     // constexpr in C++20
14670b57cec5SDimitry Andric    next_permutation(BidirectionalIterator first, BidirectionalIterator last, Compare comp);
14680b57cec5SDimitry Andric
14690b57cec5SDimitry Andrictemplate <class BidirectionalIterator>
1470e8d8bef9SDimitry Andric    constexpr bool     // constexpr in C++20
14710b57cec5SDimitry Andric    prev_permutation(BidirectionalIterator first, BidirectionalIterator last);
14720b57cec5SDimitry Andric
14730b57cec5SDimitry Andrictemplate <class BidirectionalIterator, class Compare>
1474e8d8bef9SDimitry Andric    constexpr bool     // constexpr in C++20
14750b57cec5SDimitry Andric    prev_permutation(BidirectionalIterator first, BidirectionalIterator last, Compare comp);
14760b57cec5SDimitry Andric}  // std
14770b57cec5SDimitry Andric
14780b57cec5SDimitry Andric*/
14790b57cec5SDimitry Andric
148081ad6265SDimitry Andric#include <__assert> // all public C++ headers provide the assertion handler
148181ad6265SDimitry Andric#include <__bits>
14820b57cec5SDimitry Andric#include <__config>
1483fe6060f1SDimitry Andric#include <__debug>
1484fe6060f1SDimitry Andric#include <cstddef>
14850b57cec5SDimitry Andric#include <cstring>
1486fe6060f1SDimitry Andric#include <memory>
1487fe6060f1SDimitry Andric#include <type_traits>
14880b57cec5SDimitry Andric#include <version>
14890b57cec5SDimitry Andric
1490fe6060f1SDimitry Andric#include <__algorithm/adjacent_find.h>
1491fe6060f1SDimitry Andric#include <__algorithm/all_of.h>
1492fe6060f1SDimitry Andric#include <__algorithm/any_of.h>
1493fe6060f1SDimitry Andric#include <__algorithm/binary_search.h>
1494fe6060f1SDimitry Andric#include <__algorithm/clamp.h>
1495fe6060f1SDimitry Andric#include <__algorithm/comp.h>
1496fe6060f1SDimitry Andric#include <__algorithm/comp_ref_type.h>
1497fe6060f1SDimitry Andric#include <__algorithm/copy.h>
1498fe6060f1SDimitry Andric#include <__algorithm/copy_backward.h>
1499fe6060f1SDimitry Andric#include <__algorithm/copy_if.h>
1500fe6060f1SDimitry Andric#include <__algorithm/copy_n.h>
1501fe6060f1SDimitry Andric#include <__algorithm/count.h>
1502fe6060f1SDimitry Andric#include <__algorithm/count_if.h>
1503fe6060f1SDimitry Andric#include <__algorithm/equal.h>
1504fe6060f1SDimitry Andric#include <__algorithm/equal_range.h>
1505fe6060f1SDimitry Andric#include <__algorithm/fill.h>
150604eeddc0SDimitry Andric#include <__algorithm/fill_n.h>
1507fe6060f1SDimitry Andric#include <__algorithm/find.h>
1508fe6060f1SDimitry Andric#include <__algorithm/find_end.h>
1509fe6060f1SDimitry Andric#include <__algorithm/find_first_of.h>
1510fe6060f1SDimitry Andric#include <__algorithm/find_if.h>
1511fe6060f1SDimitry Andric#include <__algorithm/find_if_not.h>
1512fe6060f1SDimitry Andric#include <__algorithm/for_each.h>
1513fe6060f1SDimitry Andric#include <__algorithm/for_each_n.h>
1514fe6060f1SDimitry Andric#include <__algorithm/generate.h>
151504eeddc0SDimitry Andric#include <__algorithm/generate_n.h>
1516fe6060f1SDimitry Andric#include <__algorithm/half_positive.h>
151781ad6265SDimitry Andric#include <__algorithm/in_found_result.h>
151881ad6265SDimitry Andric#include <__algorithm/in_fun_result.h>
15191fd87a68SDimitry Andric#include <__algorithm/in_in_out_result.h>
152004eeddc0SDimitry Andric#include <__algorithm/in_in_result.h>
152181ad6265SDimitry Andric#include <__algorithm/in_out_out_result.h>
152204eeddc0SDimitry Andric#include <__algorithm/in_out_result.h>
1523fe6060f1SDimitry Andric#include <__algorithm/includes.h>
1524fe6060f1SDimitry Andric#include <__algorithm/inplace_merge.h>
1525fe6060f1SDimitry Andric#include <__algorithm/is_heap.h>
1526fe6060f1SDimitry Andric#include <__algorithm/is_heap_until.h>
1527fe6060f1SDimitry Andric#include <__algorithm/is_partitioned.h>
1528fe6060f1SDimitry Andric#include <__algorithm/is_permutation.h>
1529fe6060f1SDimitry Andric#include <__algorithm/is_sorted.h>
1530fe6060f1SDimitry Andric#include <__algorithm/is_sorted_until.h>
1531fe6060f1SDimitry Andric#include <__algorithm/iter_swap.h>
1532fe6060f1SDimitry Andric#include <__algorithm/lexicographical_compare.h>
1533fe6060f1SDimitry Andric#include <__algorithm/lower_bound.h>
1534fe6060f1SDimitry Andric#include <__algorithm/make_heap.h>
1535fe6060f1SDimitry Andric#include <__algorithm/max.h>
1536fe6060f1SDimitry Andric#include <__algorithm/max_element.h>
1537fe6060f1SDimitry Andric#include <__algorithm/merge.h>
1538fe6060f1SDimitry Andric#include <__algorithm/min.h>
1539fe6060f1SDimitry Andric#include <__algorithm/min_element.h>
154081ad6265SDimitry Andric#include <__algorithm/min_max_result.h>
1541fe6060f1SDimitry Andric#include <__algorithm/minmax.h>
1542fe6060f1SDimitry Andric#include <__algorithm/minmax_element.h>
1543fe6060f1SDimitry Andric#include <__algorithm/mismatch.h>
1544fe6060f1SDimitry Andric#include <__algorithm/move.h>
1545fe6060f1SDimitry Andric#include <__algorithm/move_backward.h>
1546fe6060f1SDimitry Andric#include <__algorithm/next_permutation.h>
1547fe6060f1SDimitry Andric#include <__algorithm/none_of.h>
1548fe6060f1SDimitry Andric#include <__algorithm/nth_element.h>
1549fe6060f1SDimitry Andric#include <__algorithm/partial_sort.h>
1550fe6060f1SDimitry Andric#include <__algorithm/partial_sort_copy.h>
1551fe6060f1SDimitry Andric#include <__algorithm/partition.h>
1552fe6060f1SDimitry Andric#include <__algorithm/partition_copy.h>
1553fe6060f1SDimitry Andric#include <__algorithm/partition_point.h>
1554fe6060f1SDimitry Andric#include <__algorithm/pop_heap.h>
1555fe6060f1SDimitry Andric#include <__algorithm/prev_permutation.h>
1556fe6060f1SDimitry Andric#include <__algorithm/push_heap.h>
155781ad6265SDimitry Andric#include <__algorithm/ranges_adjacent_find.h>
155881ad6265SDimitry Andric#include <__algorithm/ranges_all_of.h>
155981ad6265SDimitry Andric#include <__algorithm/ranges_any_of.h>
156081ad6265SDimitry Andric#include <__algorithm/ranges_binary_search.h>
156181ad6265SDimitry Andric#include <__algorithm/ranges_copy.h>
156281ad6265SDimitry Andric#include <__algorithm/ranges_copy_backward.h>
156381ad6265SDimitry Andric#include <__algorithm/ranges_copy_if.h>
156481ad6265SDimitry Andric#include <__algorithm/ranges_copy_n.h>
156581ad6265SDimitry Andric#include <__algorithm/ranges_count.h>
156681ad6265SDimitry Andric#include <__algorithm/ranges_count_if.h>
156781ad6265SDimitry Andric#include <__algorithm/ranges_equal.h>
1568*fcaf7f86SDimitry Andric#include <__algorithm/ranges_equal_range.h>
156981ad6265SDimitry Andric#include <__algorithm/ranges_fill.h>
157081ad6265SDimitry Andric#include <__algorithm/ranges_fill_n.h>
157181ad6265SDimitry Andric#include <__algorithm/ranges_find.h>
1572753f127fSDimitry Andric#include <__algorithm/ranges_find_end.h>
157381ad6265SDimitry Andric#include <__algorithm/ranges_find_first_of.h>
157481ad6265SDimitry Andric#include <__algorithm/ranges_find_if.h>
157581ad6265SDimitry Andric#include <__algorithm/ranges_find_if_not.h>
157681ad6265SDimitry Andric#include <__algorithm/ranges_for_each.h>
157781ad6265SDimitry Andric#include <__algorithm/ranges_for_each_n.h>
1578*fcaf7f86SDimitry Andric#include <__algorithm/ranges_includes.h>
157981ad6265SDimitry Andric#include <__algorithm/ranges_is_partitioned.h>
158081ad6265SDimitry Andric#include <__algorithm/ranges_is_sorted.h>
158181ad6265SDimitry Andric#include <__algorithm/ranges_is_sorted_until.h>
158281ad6265SDimitry Andric#include <__algorithm/ranges_lexicographical_compare.h>
158381ad6265SDimitry Andric#include <__algorithm/ranges_lower_bound.h>
1584753f127fSDimitry Andric#include <__algorithm/ranges_make_heap.h>
158581ad6265SDimitry Andric#include <__algorithm/ranges_max.h>
158681ad6265SDimitry Andric#include <__algorithm/ranges_max_element.h>
1587753f127fSDimitry Andric#include <__algorithm/ranges_merge.h>
158881ad6265SDimitry Andric#include <__algorithm/ranges_min.h>
158981ad6265SDimitry Andric#include <__algorithm/ranges_min_element.h>
159081ad6265SDimitry Andric#include <__algorithm/ranges_minmax.h>
159181ad6265SDimitry Andric#include <__algorithm/ranges_minmax_element.h>
159281ad6265SDimitry Andric#include <__algorithm/ranges_mismatch.h>
159381ad6265SDimitry Andric#include <__algorithm/ranges_move.h>
159481ad6265SDimitry Andric#include <__algorithm/ranges_move_backward.h>
159581ad6265SDimitry Andric#include <__algorithm/ranges_none_of.h>
1596753f127fSDimitry Andric#include <__algorithm/ranges_nth_element.h>
1597*fcaf7f86SDimitry Andric#include <__algorithm/ranges_partial_sort.h>
1598*fcaf7f86SDimitry Andric#include <__algorithm/ranges_partition.h>
1599*fcaf7f86SDimitry Andric#include <__algorithm/ranges_partition_copy.h>
1600*fcaf7f86SDimitry Andric#include <__algorithm/ranges_partition_point.h>
1601753f127fSDimitry Andric#include <__algorithm/ranges_pop_heap.h>
1602753f127fSDimitry Andric#include <__algorithm/ranges_push_heap.h>
1603753f127fSDimitry Andric#include <__algorithm/ranges_remove.h>
1604753f127fSDimitry Andric#include <__algorithm/ranges_remove_if.h>
160581ad6265SDimitry Andric#include <__algorithm/ranges_replace.h>
160681ad6265SDimitry Andric#include <__algorithm/ranges_replace_if.h>
160781ad6265SDimitry Andric#include <__algorithm/ranges_reverse.h>
1608753f127fSDimitry Andric#include <__algorithm/ranges_reverse_copy.h>
1609753f127fSDimitry Andric#include <__algorithm/ranges_rotate_copy.h>
1610753f127fSDimitry Andric#include <__algorithm/ranges_search.h>
1611753f127fSDimitry Andric#include <__algorithm/ranges_search_n.h>
1612753f127fSDimitry Andric#include <__algorithm/ranges_set_difference.h>
1613753f127fSDimitry Andric#include <__algorithm/ranges_set_intersection.h>
1614753f127fSDimitry Andric#include <__algorithm/ranges_set_symmetric_difference.h>
1615*fcaf7f86SDimitry Andric#include <__algorithm/ranges_set_union.h>
1616*fcaf7f86SDimitry Andric#include <__algorithm/ranges_shuffle.h>
161781ad6265SDimitry Andric#include <__algorithm/ranges_sort.h>
1618753f127fSDimitry Andric#include <__algorithm/ranges_sort_heap.h>
1619*fcaf7f86SDimitry Andric#include <__algorithm/ranges_stable_partition.h>
162081ad6265SDimitry Andric#include <__algorithm/ranges_stable_sort.h>
162181ad6265SDimitry Andric#include <__algorithm/ranges_swap_ranges.h>
162281ad6265SDimitry Andric#include <__algorithm/ranges_transform.h>
162381ad6265SDimitry Andric#include <__algorithm/ranges_upper_bound.h>
1624fe6060f1SDimitry Andric#include <__algorithm/remove.h>
1625fe6060f1SDimitry Andric#include <__algorithm/remove_copy.h>
1626fe6060f1SDimitry Andric#include <__algorithm/remove_copy_if.h>
1627fe6060f1SDimitry Andric#include <__algorithm/remove_if.h>
1628fe6060f1SDimitry Andric#include <__algorithm/replace.h>
1629fe6060f1SDimitry Andric#include <__algorithm/replace_copy.h>
1630fe6060f1SDimitry Andric#include <__algorithm/replace_copy_if.h>
1631fe6060f1SDimitry Andric#include <__algorithm/replace_if.h>
1632fe6060f1SDimitry Andric#include <__algorithm/reverse.h>
1633fe6060f1SDimitry Andric#include <__algorithm/reverse_copy.h>
1634fe6060f1SDimitry Andric#include <__algorithm/rotate.h>
1635fe6060f1SDimitry Andric#include <__algorithm/rotate_copy.h>
1636fe6060f1SDimitry Andric#include <__algorithm/sample.h>
1637fe6060f1SDimitry Andric#include <__algorithm/search.h>
1638fe6060f1SDimitry Andric#include <__algorithm/search_n.h>
1639fe6060f1SDimitry Andric#include <__algorithm/set_difference.h>
1640fe6060f1SDimitry Andric#include <__algorithm/set_intersection.h>
1641fe6060f1SDimitry Andric#include <__algorithm/set_symmetric_difference.h>
1642fe6060f1SDimitry Andric#include <__algorithm/set_union.h>
1643fe6060f1SDimitry Andric#include <__algorithm/shift_left.h>
1644fe6060f1SDimitry Andric#include <__algorithm/shift_right.h>
1645fe6060f1SDimitry Andric#include <__algorithm/shuffle.h>
1646fe6060f1SDimitry Andric#include <__algorithm/sift_down.h>
1647fe6060f1SDimitry Andric#include <__algorithm/sort.h>
1648fe6060f1SDimitry Andric#include <__algorithm/sort_heap.h>
1649fe6060f1SDimitry Andric#include <__algorithm/stable_partition.h>
1650fe6060f1SDimitry Andric#include <__algorithm/stable_sort.h>
1651fe6060f1SDimitry Andric#include <__algorithm/swap_ranges.h>
1652fe6060f1SDimitry Andric#include <__algorithm/transform.h>
1653fe6060f1SDimitry Andric#include <__algorithm/unique.h>
165404eeddc0SDimitry Andric#include <__algorithm/unique_copy.h>
1655fe6060f1SDimitry Andric#include <__algorithm/unwrap_iter.h>
1656fe6060f1SDimitry Andric#include <__algorithm/upper_bound.h>
16570b57cec5SDimitry Andric
165881ad6265SDimitry Andric#ifndef _LIBCPP_REMOVE_TRANSITIVE_INCLUDES
165981ad6265SDimitry Andric#  include <chrono>
166081ad6265SDimitry Andric#  include <iterator>
166181ad6265SDimitry Andric#  include <utility>
166281ad6265SDimitry Andric#endif
166381ad6265SDimitry Andric
166481ad6265SDimitry Andric// standard-mandated includes
166581ad6265SDimitry Andric#include <initializer_list>
166681ad6265SDimitry Andric
16670b57cec5SDimitry Andric#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
16680b57cec5SDimitry Andric#  pragma GCC system_header
16690b57cec5SDimitry Andric#endif
16700b57cec5SDimitry Andric
1671e40139ffSDimitry Andric#if defined(_LIBCPP_HAS_PARALLEL_ALGORITHMS) && _LIBCPP_STD_VER >= 17
1672e40139ffSDimitry Andric#   include <__pstl_algorithm>
1673e40139ffSDimitry Andric#endif
1674e40139ffSDimitry Andric
16750b57cec5SDimitry Andric#endif // _LIBCPP_ALGORITHM
1676