# 27 Algorithms library [algorithms]

## 27.4 Header <algorithm> synopsis [algorithm.syn]

#include <initializer_list> // see [initializer.list.syn] namespace std { namespace ranges { // [algorithms.results], algorithm result types template<class I, class F> struct in_fun_result; template<class I1, class I2> struct in_in_result; template<class I, class O> struct in_out_result; template<class I1, class I2, class O> struct in_in_out_result; template<class I, class O1, class O2> struct in_out_out_result; template<class T> struct min_max_result; template<class I> struct in_found_result; template<class I, class T> struct in_value_result; template<class O, class T> struct out_value_result; } // [alg.nonmodifying], non-modifying sequence operations // [alg.all.of], all of template<class InputIterator, class Predicate> constexpr bool all_of(InputIterator first, InputIterator last, Predicate pred); template<class ExecutionPolicy, class ForwardIterator, class Predicate> bool all_of(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, Predicate pred); namespace ranges { template<input_iterator I, sentinel_for<I> S, class Proj = identity, indirect_unary_predicate<projected<I, Proj>> Pred> constexpr bool all_of(I first, S last, Pred pred, Proj proj = {}); template<input_range R, class Proj = identity, indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred> constexpr bool all_of(R&& r, Pred pred, Proj proj = {}); } // [alg.any.of], any of template<class InputIterator, class Predicate> constexpr bool any_of(InputIterator first, InputIterator last, Predicate pred); template<class ExecutionPolicy, class ForwardIterator, class Predicate> bool any_of(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, Predicate pred); namespace ranges { template<input_iterator I, sentinel_for<I> S, class Proj = identity, indirect_unary_predicate<projected<I, Proj>> Pred> constexpr bool any_of(I first, S last, Pred pred, Proj proj = {}); template<input_range R, class Proj = identity, indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred> constexpr bool any_of(R&& r, Pred pred, Proj proj = {}); } // [alg.none.of], none of template<class InputIterator, class Predicate> constexpr bool none_of(InputIterator first, InputIterator last, Predicate pred); template<class ExecutionPolicy, class ForwardIterator, class Predicate> bool none_of(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, Predicate pred); namespace ranges { template<input_iterator I, sentinel_for<I> S, class Proj = identity, indirect_unary_predicate<projected<I, Proj>> Pred> constexpr bool none_of(I first, S last, Pred pred, Proj proj = {}); template<input_range R, class Proj = identity, indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred> constexpr bool none_of(R&& r, Pred pred, Proj proj = {}); } // [alg.contains], contains namespace ranges { template<input_iterator I, sentinel_for<I> S, class Proj = identity, class T = projected_value_t<I, Proj>> requires indirect_binary_predicate<ranges::equal_to, projected<I, Proj>, const T*> constexpr bool contains(I first, S last, const T& value, Proj proj = {}); template<input_range R, class Proj = identity, class T = projected_value_t<iterator_t<R>, Proj>> requires indirect_binary_predicate<ranges::equal_to, projected<iterator_t<R>, Proj>, const T*> constexpr bool contains(R&& r, const T& value, Proj proj = {}); template<forward_iterator I1, sentinel_for<I1> S1, forward_iterator I2, sentinel_for<I2> S2, class Pred = ranges::equal_to, class Proj1 = identity, class Proj2 = identity> requires indirectly_comparable<I1, I2, Pred, Proj1, Proj2> constexpr bool contains_subrange(I1 first1, S1 last1, I2 first2, S2 last2, Pred pred = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); template<forward_range R1, forward_range R2, class Pred = ranges::equal_to, class Proj1 = identity, class Proj2 = identity> requires indirectly_comparable<iterator_t<R1>, iterator_t<R2>, Pred, Proj1, Proj2> constexpr bool contains_subrange(R1&& r1, R2&& r2, Pred pred = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); } // [alg.foreach], for each template<class InputIterator, class Function> constexpr Function for_each(InputIterator first, InputIterator last, Function f); template<class ExecutionPolicy, class ForwardIterator, class Function> void for_each(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, Function f); namespace ranges { template<class I, class F> using for_each_result = in_fun_result<I, F>; template<input_iterator I, sentinel_for<I> S, class Proj = identity, indirectly_unary_invocable<projected<I, Proj>> Fun> constexpr for_each_result<I, Fun> for_each(I first, S last, Fun f, Proj proj = {}); template<input_range R, class Proj = identity, indirectly_unary_invocable<projected<iterator_t<R>, Proj>> Fun> constexpr for_each_result<borrowed_iterator_t<R>, Fun> for_each(R&& r, Fun f, Proj proj = {}); } template<class InputIterator, class Size, class Function> constexpr InputIterator for_each_n(InputIterator first, Size n, Function f); template<class ExecutionPolicy, class ForwardIterator, class Size, class Function> ForwardIterator for_each_n(ExecutionPolicy&& exec, ForwardIterator first, Size n, Function f); namespace ranges { template<class I, class F> using for_each_n_result = in_fun_result<I, F>; template<input_iterator I, class Proj = identity, indirectly_unary_invocable<projected<I, Proj>> Fun> constexpr for_each_n_result<I, Fun> for_each_n(I first, iter_difference_t<I> n, Fun f, Proj proj = {}); } // [alg.find], find template<class InputIterator, class T = iterator_traits<InputIterator>::value_type> constexpr InputIterator find(InputIterator first, InputIterator last, const T& value); template<class ExecutionPolicy, class ForwardIterator, class T = iterator_traits<ForwardIterator>::value_type> ForwardIterator find(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, const T& value); template<class InputIterator, class Predicate> constexpr InputIterator find_if(InputIterator first, InputIterator last, Predicate pred); template<class ExecutionPolicy, class ForwardIterator, class Predicate> ForwardIterator find_if(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, Predicate pred); template<class InputIterator, class Predicate> constexpr InputIterator find_if_not(InputIterator first, InputIterator last, Predicate pred); template<class ExecutionPolicy, class ForwardIterator, class Predicate> ForwardIterator find_if_not(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, Predicate pred); namespace ranges { template<input_iterator I, sentinel_for<I> S, class Proj = identity, class T = projected_value_t<I, Proj>> requires indirect_binary_predicate<ranges::equal_to, projected<I, Proj>, const T*> constexpr I find(I first, S last, const T& value, Proj proj = {}); template<input_range R, class Proj = identity, class T = projected_value_t<iterator_t<R>, Proj>> requires indirect_binary_predicate<ranges::equal_to, projected<iterator_t<R>, Proj>, const T*> constexpr borrowed_iterator_t<R> find(R&& r, const T& value, Proj proj = {}); template<input_iterator I, sentinel_for<I> S, class Proj = identity, indirect_unary_predicate<projected<I, Proj>> Pred> constexpr I find_if(I first, S last, Pred pred, Proj proj = {}); template<input_range R, class Proj = identity, indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred> constexpr borrowed_iterator_t<R> find_if(R&& r, Pred pred, Proj proj = {}); template<input_iterator I, sentinel_for<I> S, class Proj = identity, indirect_unary_predicate<projected<I, Proj>> Pred> constexpr I find_if_not(I first, S last, Pred pred, Proj proj = {}); template<input_range R, class Proj = identity, indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred> constexpr borrowed_iterator_t<R> find_if_not(R&& r, Pred pred, Proj proj = {}); } // [alg.find.last], find last namespace ranges { template<forward_iterator I, sentinel_for<I> S, class T, class Proj = identity> requires indirect_binary_predicate<ranges::equal_to, projected<I, Proj>, const T*> constexpr subrange<I> find_last(I first, S last, const T& value, Proj proj = {}); template<forward_range R, class T, class Proj = identity> requires indirect_binary_predicate<ranges::equal_to, projected<iterator_t<R>, Proj>, const T*> constexpr borrowed_subrange_t<R> find_last(R&& r, const T& value, Proj proj = {}); template<forward_iterator I, sentinel_for<I> S, class Proj = identity, indirect_unary_predicate<projected<I, Proj>> Pred> constexpr subrange<I> find_last_if(I first, S last, Pred pred, Proj proj = {}); template<forward_range R, class Proj = identity, indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred> constexpr borrowed_subrange_t<R> find_last_if(R&& r, Pred pred, Proj proj = {}); template<forward_iterator I, sentinel_for<I> S, class Proj = identity, indirect_unary_predicate<projected<I, Proj>> Pred> constexpr subrange<I> find_last_if_not(I first, S last, Pred pred, Proj proj = {}); template<forward_range R, class Proj = identity, indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred> constexpr borrowed_subrange_t<R> find_last_if_not(R&& r, Pred pred, Proj proj = {}); } // [alg.find.end], find end template<class ForwardIterator1, class ForwardIterator2> constexpr ForwardIterator1 find_end(ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2); template<class ForwardIterator1, class ForwardIterator2, class BinaryPredicate> constexpr ForwardIterator1 find_end(ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, BinaryPredicate pred); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2> ForwardIterator1 find_end(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class BinaryPredicate> ForwardIterator1 find_end(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, BinaryPredicate pred); namespace ranges { template<forward_iterator I1, sentinel_for<I1> S1, forward_iterator I2, sentinel_for<I2> S2, class Pred = ranges::equal_to, class Proj1 = identity, class Proj2 = identity> requires indirectly_comparable<I1, I2, Pred, Proj1, Proj2> constexpr subrange<I1> find_end(I1 first1, S1 last1, I2 first2, S2 last2, Pred pred = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); template<forward_range R1, forward_range R2, class Pred = ranges::equal_to, class Proj1 = identity, class Proj2 = identity> requires indirectly_comparable<iterator_t<R1>, iterator_t<R2>, Pred, Proj1, Proj2> constexpr borrowed_subrange_t<R1> find_end(R1&& r1, R2&& r2, Pred pred = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); } // [alg.find.first.of], find first template<class InputIterator, class ForwardIterator> constexpr InputIterator find_first_of(InputIterator first1, InputIterator last1, ForwardIterator first2, ForwardIterator last2); template<class InputIterator, class ForwardIterator, class BinaryPredicate> constexpr InputIterator find_first_of(InputIterator first1, InputIterator last1, ForwardIterator first2, ForwardIterator last2, BinaryPredicate pred); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2> ForwardIterator1 find_first_of(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class BinaryPredicate> ForwardIterator1 find_first_of(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, BinaryPredicate pred); namespace ranges { template<input_iterator I1, sentinel_for<I1> S1, forward_iterator I2, sentinel_for<I2> S2, class Pred = ranges::equal_to, class Proj1 = identity, class Proj2 = identity> requires indirectly_comparable<I1, I2, Pred, Proj1, Proj2> constexpr I1 find_first_of(I1 first1, S1 last1, I2 first2, S2 last2, Pred pred = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); template<input_range R1, forward_range R2, class Pred = ranges::equal_to, class Proj1 = identity, class Proj2 = identity> requires indirectly_comparable<iterator_t<R1>, iterator_t<R2>, Pred, Proj1, Proj2> constexpr borrowed_iterator_t<R1> find_first_of(R1&& r1, R2&& r2, Pred pred = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); } // [alg.adjacent.find], adjacent find template<class ForwardIterator> constexpr ForwardIterator adjacent_find(ForwardIterator first, ForwardIterator last); template<class ForwardIterator, class BinaryPredicate> constexpr ForwardIterator adjacent_find(ForwardIterator first, ForwardIterator last, BinaryPredicate pred); template<class ExecutionPolicy, class ForwardIterator> ForwardIterator adjacent_find(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last); template<class ExecutionPolicy, class ForwardIterator, class BinaryPredicate> ForwardIterator adjacent_find(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, BinaryPredicate pred); namespace ranges { template<forward_iterator I, sentinel_for<I> S, class Proj = identity, indirect_binary_predicate<projected<I, Proj>, projected<I, Proj>> Pred = ranges::equal_to> constexpr I adjacent_find(I first, S last, Pred pred = {}, Proj proj = {}); template<forward_range R, class Proj = identity, indirect_binary_predicate<projected<iterator_t<R>, Proj>, projected<iterator_t<R>, Proj>> Pred = ranges::equal_to> constexpr borrowed_iterator_t<R> adjacent_find(R&& r, Pred pred = {}, Proj proj = {}); } // [alg.count], count template<class InputIterator, class T = iterator_traits<InputIterator>::value_type> constexpr typename iterator_traits<InputIterator>::difference_type count(InputIterator first, InputIterator last, const T& value); template<class ExecutionPolicy, class ForwardIterator, class T = iterator_traits<InputIterator>::value_type> typename iterator_traits<ForwardIterator>::difference_type count(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, const T& value); template<class InputIterator, class Predicate> constexpr typename iterator_traits<InputIterator>::difference_type count_if(InputIterator first, InputIterator last, Predicate pred); template<class ExecutionPolicy, class ForwardIterator, class Predicate> typename iterator_traits<ForwardIterator>::difference_type count_if(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, Predicate pred); namespace ranges { template<input_iterator I, sentinel_for<I> S, class Proj = identity, class T = projected_value_t<I, Proj>> requires indirect_binary_predicate<ranges::equal_to, projected<I, Proj>, const T*> constexpr iter_difference_t<I> count(I first, S last, const T& value, Proj proj = {}); template<input_range R, class Proj = identity, class T = projected_value_t<iterator_t<R>, Proj>> requires indirect_binary_predicate<ranges::equal_to, projected<iterator_t<R>, Proj>, const T*> constexpr range_difference_t<R> count(R&& r, const T& value, Proj proj = {}); template<input_iterator I, sentinel_for<I> S, class Proj = identity, indirect_unary_predicate<projected<I, Proj>> Pred> constexpr iter_difference_t<I> count_if(I first, S last, Pred pred, Proj proj = {}); template<input_range R, class Proj = identity, indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred> constexpr range_difference_t<R> count_if(R&& r, Pred pred, Proj proj = {}); } // [alg.mismatch], mismatch template<class InputIterator1, class InputIterator2> constexpr pair<InputIterator1, InputIterator2> mismatch(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2); template<class InputIterator1, class InputIterator2, class BinaryPredicate> constexpr pair<InputIterator1, InputIterator2> mismatch(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, BinaryPredicate pred); template<class InputIterator1, class InputIterator2> constexpr pair<InputIterator1, InputIterator2> mismatch(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2); template<class InputIterator1, class InputIterator2, class BinaryPredicate> constexpr pair<InputIterator1, InputIterator2> mismatch(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2, BinaryPredicate pred); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2> pair<ForwardIterator1, ForwardIterator2> mismatch(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class BinaryPredicate> pair<ForwardIterator1, ForwardIterator2> mismatch(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, BinaryPredicate pred); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2> pair<ForwardIterator1, ForwardIterator2> mismatch(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class BinaryPredicate> pair<ForwardIterator1, ForwardIterator2> mismatch(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, BinaryPredicate pred); namespace ranges { template<class I1, class I2> using mismatch_result = in_in_result<I1, I2>; template<input_iterator I1, sentinel_for<I1> S1, input_iterator I2, sentinel_for<I2> S2, class Pred = ranges::equal_to, class Proj1 = identity, class Proj2 = identity> requires indirectly_comparable<I1, I2, Pred, Proj1, Proj2> constexpr mismatch_result<I1, I2> mismatch(I1 first1, S1 last1, I2 first2, S2 last2, Pred pred = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); template<input_range R1, input_range R2, class Pred = ranges::equal_to, class Proj1 = identity, class Proj2 = identity> requires indirectly_comparable<iterator_t<R1>, iterator_t<R2>, Pred, Proj1, Proj2> constexpr mismatch_result<borrowed_iterator_t<R1>, borrowed_iterator_t<R2>> mismatch(R1&& r1, R2&& r2, Pred pred = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); } // [alg.equal], equal template<class InputIterator1, class InputIterator2> constexpr bool equal(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2); template<class InputIterator1, class InputIterator2, class BinaryPredicate> constexpr bool equal(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, BinaryPredicate pred); template<class InputIterator1, class InputIterator2> constexpr bool equal(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2); template<class InputIterator1, class InputIterator2, class BinaryPredicate> constexpr bool equal(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2, BinaryPredicate pred); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2> bool equal(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class BinaryPredicate> bool equal(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, BinaryPredicate pred); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2> bool equal(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class BinaryPredicate> bool equal(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, BinaryPredicate pred); namespace ranges { template<input_iterator I1, sentinel_for<I1> S1, input_iterator I2, sentinel_for<I2> S2, class Pred = ranges::equal_to, class Proj1 = identity, class Proj2 = identity> requires indirectly_comparable<I1, I2, Pred, Proj1, Proj2> constexpr bool equal(I1 first1, S1 last1, I2 first2, S2 last2, Pred pred = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); template<input_range R1, input_range R2, class Pred = ranges::equal_to, class Proj1 = identity, class Proj2 = identity> requires indirectly_comparable<iterator_t<R1>, iterator_t<R2>, Pred, Proj1, Proj2> constexpr bool equal(R1&& r1, R2&& r2, Pred pred = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); } // [alg.is.permutation], is permutation template<class ForwardIterator1, class ForwardIterator2> constexpr bool is_permutation(ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2); template<class ForwardIterator1, class ForwardIterator2, class BinaryPredicate> constexpr bool is_permutation(ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, BinaryPredicate pred); template<class ForwardIterator1, class ForwardIterator2> constexpr bool is_permutation(ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2); template<class ForwardIterator1, class ForwardIterator2, class BinaryPredicate> constexpr bool is_permutation(ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, BinaryPredicate pred); namespace ranges { template<forward_iterator I1, sentinel_for<I1> S1, forward_iterator I2, sentinel_for<I2> S2, class Proj1 = identity, class Proj2 = identity, indirect_equivalence_relation<projected<I1, Proj1>, projected<I2, Proj2>> Pred = ranges::equal_to> constexpr bool is_permutation(I1 first1, S1 last1, I2 first2, S2 last2, Pred pred = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); template<forward_range R1, forward_range R2, class Proj1 = identity, class Proj2 = identity, indirect_equivalence_relation<projected<iterator_t<R1>, Proj1>, projected<iterator_t<R2>, Proj2>> Pred = ranges::equal_to> constexpr bool is_permutation(R1&& r1, R2&& r2, Pred pred = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); } // [alg.search], search template<class ForwardIterator1, class ForwardIterator2> constexpr ForwardIterator1 search(ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2); template<class ForwardIterator1, class ForwardIterator2, class BinaryPredicate> constexpr ForwardIterator1 search(ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, BinaryPredicate pred); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2> ForwardIterator1 search(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class BinaryPredicate> ForwardIterator1 search(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, BinaryPredicate pred); namespace ranges { template<forward_iterator I1, sentinel_for<I1> S1, forward_iterator I2, sentinel_for<I2> S2, class Pred = ranges::equal_to, class Proj1 = identity, class Proj2 = identity> requires indirectly_comparable<I1, I2, Pred, Proj1, Proj2> constexpr subrange<I1> search(I1 first1, S1 last1, I2 first2, S2 last2, Pred pred = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); template<forward_range R1, forward_range R2, class Pred = ranges::equal_to, class Proj1 = identity, class Proj2 = identity> requires indirectly_comparable<iterator_t<R1>, iterator_t<R2>, Pred, Proj1, Proj2> constexpr borrowed_subrange_t<R1> search(R1&& r1, R2&& r2, Pred pred = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); } template<class ForwardIterator, class Size, class T = iterator_traits<ForwardIterator>::value_type> constexpr ForwardIterator search_n(ForwardIterator first, ForwardIterator last, Size count, const T& value); template<class ForwardIterator, class Size, class T = iterator_traits<ForwardIterator>::value_type, class BinaryPredicate> constexpr ForwardIterator search_n(ForwardIterator first, ForwardIterator last, Size count, const T& value, BinaryPredicate pred); template<class ExecutionPolicy, class ForwardIterator, class Size, class T = iterator_traits<ForwardIterator>::value_type> ForwardIterator search_n(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, Size count, const T& value); template<class ExecutionPolicy, class ForwardIterator, class Size, class T = iterator_traits<ForwardIterator>::value_type, class BinaryPredicate> ForwardIterator search_n(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, Size count, const T& value, BinaryPredicate pred); namespace ranges { template<forward_iterator I, sentinel_for<I> S, class Pred = ranges::equal_to, class Proj = identity, class T = projected_value_t<I, Proj>> requires indirectly_comparable<I, const T*, Pred, Proj> constexpr subrange<I> search_n(I first, S last, iter_difference_t<I> count, const T& value, Pred pred = {}, Proj proj = {}); template<forward_range R, class Pred = ranges::equal_to, class Proj = identity, class T = projected_value_t<I, Proj>> requires indirectly_comparable<iterator_t<R>, const T*, Pred, Proj> constexpr borrowed_subrange_t<R> search_n(R&& r, range_difference_t<R> count, const T& value, Pred pred = {}, Proj proj = {}); } template<class ForwardIterator, class Searcher> constexpr ForwardIterator search(ForwardIterator first, ForwardIterator last, const Searcher& searcher); namespace ranges { // [alg.starts.with], starts with template<input_iterator I1, sentinel_for<I1> S1, input_iterator I2, sentinel_for<I2> S2, class Pred = ranges::equal_to, class Proj1 = identity, class Proj2 = identity> requires indirectly_comparable<I1, I2, Pred, Proj1, Proj2> constexpr bool starts_with(I1 first1, S1 last1, I2 first2, S2 last2, Pred pred = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); template<input_range R1, input_range R2, class Pred = ranges::equal_to, class Proj1 = identity, class Proj2 = identity> requires indirectly_comparable<iterator_t<R1>, iterator_t<R2>, Pred, Proj1, Proj2> constexpr bool starts_with(R1&& r1, R2&& r2, Pred pred = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); // [alg.ends.with], ends with template<input_iterator I1, sentinel_for<I1> S1, input_iterator I2, sentinel_for<I2> S2, class Pred = ranges::equal_to, class Proj1 = identity, class Proj2 = identity> requires (forward_iterator<I1> || sized_sentinel_for<S1, I1>) && (forward_iterator<I2> || sized_sentinel_for<S2, I2>) && indirectly_comparable<I1, I2, Pred, Proj1, Proj2> constexpr bool ends_with(I1 first1, S1 last1, I2 first2, S2 last2, Pred pred = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); template<input_range R1, input_range R2, class Pred = ranges::equal_to, class Proj1 = identity, class Proj2 = identity> requires (forward_range<R1> || sized_range<R1>) && (forward_range<R2> || sized_range<R2>) && indirectly_comparable<iterator_t<R1>, iterator_t<R2>, Pred, Proj1, Proj2> constexpr bool ends_with(R1&& r1, R2&& r2, Pred pred = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); // [alg.fold], fold template<class F> class flipped { // exposition only F f; // exposition only public: template<class T, class U> requires invocable<F&, U, T> invoke_result_t<F&, U, T> operator()(T&&, U&&); }; template<class F, class T, class I, class U> concept indirectly-binary-left-foldable-impl = // exposition only movable<T> && movable<U> && convertible_to<T, U> && invocable<F&, U, iter_reference_t<I>> && assignable_from<U&, invoke_result_t<F&, U, iter_reference_t<I>>>; template<class F, class T, class I> concept indirectly-binary-left-foldable = // exposition only copy_constructible<F> && indirectly_readable<I> && invocable<F&, T, iter_reference_t<I>> && convertible_to<invoke_result_t<F&, T, iter_reference_t<I>>, decay_t<invoke_result_t<F&, T, iter_reference_t<I>>>> && indirectly-binary-left-foldable-impl<F, T, I, decay_t<invoke_result_t<F&, T, iter_reference_t<I>>>>; template<class F, class T, class I> concept indirectly-binary-right-foldable = // exposition only indirectly-binary-left-foldable<flipped<F>, T, I>; template<input_iterator I, sentinel_for<I> S, class T = iter_value_t<I>, indirectly-binary-left-foldable<T, I> F> constexpr auto fold_left(I first, S last, T init, F f); template<input_range R, class T = range_value_t<R>, indirectly-binary-left-foldable<T, iterator_t<R>> F> constexpr auto fold_left(R&& r, T init, F f); template<input_iterator I, sentinel_for<I> S, indirectly-binary-left-foldable<iter_value_t<I>, I> F> requires constructible_from<iter_value_t<I>, iter_reference_t<I>> constexpr auto fold_left_first(I first, S last, F f); template<input_range R, indirectly-binary-left-foldable<range_value_t<R>, iterator_t<R>> F> requires constructible_from<range_value_t<R>, range_reference_t<R>> constexpr auto fold_left_first(R&& r, F f); template<bidirectional_iterator I, sentinel_for<I> S, class T = iter_value_t<I>, indirectly-binary-right-foldable<T, I> F> constexpr auto fold_right(I first, S last, T init, F f); template<bidirectional_range R, class T = range_value_t<R>, indirectly-binary-right-foldable<T, iterator_t<R>> F> constexpr auto fold_right(R&& r, T init, F f); template<bidirectional_iterator I, sentinel_for<I> S, indirectly-binary-right-foldable<iter_value_t<I>, I> F> requires constructible_from<iter_value_t<I>, iter_reference_t<I>> constexpr auto fold_right_last(I first, S last, F f); template<bidirectional_range R, indirectly-binary-right-foldable<range_value_t<R>, iterator_t<R>> F> requires constructible_from<range_value_t<R>, range_reference_t<R>> constexpr auto fold_right_last(R&& r, F f); template<class I, class T> using fold_left_with_iter_result = in_value_result<I, T>; template<class I, class T> using fold_left_first_with_iter_result = in_value_result<I, T>; template<input_iterator I, sentinel_for<I> S, class T = iter_value_t<I>, indirectly-binary-left-foldable<T, I> F> constexpr see below fold_left_with_iter(I first, S last, T init, F f); template<input_range R, class T = range_value_t<R>, indirectly-binary-left-foldable<T, iterator_t<R>> F> constexpr see below fold_left_with_iter(R&& r, T init, F f); template<input_iterator I, sentinel_for<I> S, indirectly-binary-left-foldable<iter_value_t<I>, I> F> requires constructible_from<iter_value_t<I>, iter_reference_t<I>> constexpr see below fold_left_first_with_iter(I first, S last, F f); template<input_range R, indirectly-binary-left-foldable<range_value_t<R>, iterator_t<R>> F> requires constructible_from<range_value_t<R>, range_reference_t<R>> constexpr see below fold_left_first_with_iter(R&& r, F f); } // [alg.modifying.operations], mutating sequence operations // [alg.copy], copy template<class InputIterator, class OutputIterator> constexpr OutputIterator copy(InputIterator first, InputIterator last, OutputIterator result); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2> ForwardIterator2 copy(ExecutionPolicy&& exec, ForwardIterator1 first, ForwardIterator1 last, ForwardIterator2 result); namespace ranges { template<class I, class O> using copy_result = in_out_result<I, O>; template<input_iterator I, sentinel_for<I> S, weakly_incrementable O> requires indirectly_copyable<I, O> constexpr copy_result<I, O> copy(I first, S last, O result); template<input_range R, weakly_incrementable O> requires indirectly_copyable<iterator_t<R>, O> constexpr copy_result<borrowed_iterator_t<R>, O> copy(R&& r, O result); } template<class InputIterator, class Size, class OutputIterator> constexpr OutputIterator copy_n(InputIterator first, Size n, OutputIterator result); template<class ExecutionPolicy, class ForwardIterator1, class Size, class ForwardIterator2> ForwardIterator2 copy_n(ExecutionPolicy&& exec, ForwardIterator1 first, Size n, ForwardIterator2 result); namespace ranges { template<class I, class O> using copy_n_result = in_out_result<I, O>; template<input_iterator I, weakly_incrementable O> requires indirectly_copyable<I, O> constexpr copy_n_result<I, O> copy_n(I first, iter_difference_t<I> n, O result); } template<class InputIterator, class OutputIterator, class Predicate> constexpr OutputIterator copy_if(InputIterator first, InputIterator last, OutputIterator result, Predicate pred); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class Predicate> ForwardIterator2 copy_if(ExecutionPolicy&& exec, ForwardIterator1 first, ForwardIterator1 last, ForwardIterator2 result, Predicate pred); namespace ranges { template<class I, class O> using copy_if_result = in_out_result<I, O>; template<input_iterator I, sentinel_for<I> S, weakly_incrementable O, class Proj = identity, indirect_unary_predicate<projected<I, Proj>> Pred> requires indirectly_copyable<I, O> constexpr copy_if_result<I, O> copy_if(I first, S last, O result, Pred pred, Proj proj = {}); template<input_range R, weakly_incrementable O, class Proj = identity, indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred> requires indirectly_copyable<iterator_t<R>, O> constexpr copy_if_result<borrowed_iterator_t<R>, O> copy_if(R&& r, O result, Pred pred, Proj proj = {}); } template<class BidirectionalIterator1, class BidirectionalIterator2> constexpr BidirectionalIterator2 copy_backward(BidirectionalIterator1 first, BidirectionalIterator1 last, BidirectionalIterator2 result); namespace ranges { template<class I1, class I2> using copy_backward_result = in_out_result<I1, I2>; template<bidirectional_iterator I1, sentinel_for<I1> S1, bidirectional_iterator I2> requires indirectly_copyable<I1, I2> constexpr copy_backward_result<I1, I2> copy_backward(I1 first, S1 last, I2 result); template<bidirectional_range R, bidirectional_iterator I> requires indirectly_copyable<iterator_t<R>, I> constexpr copy_backward_result<borrowed_iterator_t<R>, I> copy_backward(R&& r, I result); } // [alg.move], move template<class InputIterator, class OutputIterator> constexpr OutputIterator move(InputIterator first, InputIterator last, OutputIterator result); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2> ForwardIterator2 move(ExecutionPolicy&& exec, ForwardIterator1 first, ForwardIterator1 last, ForwardIterator2 result); namespace ranges { template<class I, class O> using move_result = in_out_result<I, O>; template<input_iterator I, sentinel_for<I> S, weakly_incrementable O> requires indirectly_movable<I, O> constexpr move_result<I, O> move(I first, S last, O result); template<input_range R, weakly_incrementable O> requires indirectly_movable<iterator_t<R>, O> constexpr move_result<borrowed_iterator_t<R>, O> move(R&& r, O result); } template<class BidirectionalIterator1, class BidirectionalIterator2> constexpr BidirectionalIterator2 move_backward(BidirectionalIterator1 first, BidirectionalIterator1 last, BidirectionalIterator2 result); namespace ranges { template<class I1, class I2> using move_backward_result = in_out_result<I1, I2>; template<bidirectional_iterator I1, sentinel_for<I1> S1, bidirectional_iterator I2> requires indirectly_movable<I1, I2> constexpr move_backward_result<I1, I2> move_backward(I1 first, S1 last, I2 result); template<bidirectional_range R, bidirectional_iterator I> requires indirectly_movable<iterator_t<R>, I> constexpr move_backward_result<borrowed_iterator_t<R>, I> move_backward(R&& r, I result); } // [alg.swap], swap template<class ForwardIterator1, class ForwardIterator2> constexpr ForwardIterator2 swap_ranges(ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2> ForwardIterator2 swap_ranges(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2); namespace ranges { template<class I1, class I2> using swap_ranges_result = in_in_result<I1, I2>; template<input_iterator I1, sentinel_for<I1> S1, input_iterator I2, sentinel_for<I2> S2> requires indirectly_swappable<I1, I2> constexpr swap_ranges_result<I1, I2> swap_ranges(I1 first1, S1 last1, I2 first2, S2 last2); template<input_range R1, input_range R2> requires indirectly_swappable<iterator_t<R1>, iterator_t<R2>> constexpr swap_ranges_result<borrowed_iterator_t<R1>, borrowed_iterator_t<R2>> swap_ranges(R1&& r1, R2&& r2); } template<class ForwardIterator1, class ForwardIterator2> constexpr void iter_swap(ForwardIterator1 a, ForwardIterator2 b); // [alg.transform], transform template<class InputIterator, class OutputIterator, class UnaryOperation> constexpr OutputIterator transform(InputIterator first1, InputIterator last1, OutputIterator result, UnaryOperation op); template<class InputIterator1, class InputIterator2, class OutputIterator, class BinaryOperation> constexpr OutputIterator transform(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, OutputIterator result, BinaryOperation binary_op); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class UnaryOperation> ForwardIterator2 transform(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 result, UnaryOperation op); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class ForwardIterator, class BinaryOperation> ForwardIterator transform(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator result, BinaryOperation binary_op); namespace ranges { template<class I, class O> using unary_transform_result = in_out_result<I, O>; template<input_iterator I, sentinel_for<I> S, weakly_incrementable O, copy_constructible F, class Proj = identity> requires indirectly_writable<O, indirect_result_t<F&, projected<I, Proj>>> constexpr unary_transform_result<I, O> transform(I first1, S last1, O result, F op, Proj proj = {}); template<input_range R, weakly_incrementable O, copy_constructible F, class Proj = identity> requires indirectly_writable<O, indirect_result_t<F&, projected<iterator_t<R>, Proj>>> constexpr unary_transform_result<borrowed_iterator_t<R>, O> transform(R&& r, O result, F op, Proj proj = {}); template<class I1, class I2, class O> using binary_transform_result = in_in_out_result<I1, I2, O>; template<input_iterator I1, sentinel_for<I1> S1, input_iterator I2, sentinel_for<I2> S2, weakly_incrementable O, copy_constructible F, class Proj1 = identity, class Proj2 = identity> requires indirectly_writable<O, indirect_result_t<F&, projected<I1, Proj1>, projected<I2, Proj2>>> constexpr binary_transform_result<I1, I2, O> transform(I1 first1, S1 last1, I2 first2, S2 last2, O result, F binary_op, Proj1 proj1 = {}, Proj2 proj2 = {}); template<input_range R1, input_range R2, weakly_incrementable O, copy_constructible F, class Proj1 = identity, class Proj2 = identity> requires indirectly_writable<O, indirect_result_t<F&, projected<iterator_t<R1>, Proj1>, projected<iterator_t<R2>, Proj2>>> constexpr binary_transform_result<borrowed_iterator_t<R1>, borrowed_iterator_t<R2>, O> transform(R1&& r1, R2&& r2, O result, F binary_op, Proj1 proj1 = {}, Proj2 proj2 = {}); } // [alg.replace], replace template<class ForwardIterator, class T> constexpr void replace(ForwardIterator first, ForwardIterator last, const T& old_value, const T& new_value); template<class ExecutionPolicy, class ForwardIterator, class T = iterator_traits<ForwardIterator>::value_type> void replace(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, const T& old_value, const T& new_value); template<class ForwardIterator, class Predicate, class T = iterator_traits<ForwardIterator>::value_type> constexpr void replace_if(ForwardIterator first, ForwardIterator last, Predicate pred, const T& new_value); template<class ExecutionPolicy, class ForwardIterator, class Predicate, class T = iterator_traits<ForwardIterator>::value_type> void replace_if(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, Predicate pred, const T& new_value); namespace ranges { template<input_iterator I, sentinel_for<I> S, class Proj = identity, class T1 = projected_value_t<I, Proj>, class T2 = T1> requires indirectly_writable<I, const T2&> && indirect_binary_predicate<ranges::equal_to, projected<I, Proj>, const T1*> constexpr I replace(I first, S last, const T1& old_value, const T2& new_value, Proj proj = {}); template<input_range R, class Proj = identity, class T1 = projected_value_t<iterator_t<R>, Proj>, class T2 = T1> requires indirectly_writable<iterator_t<R>, const T2&> && indirect_binary_predicate<ranges::equal_to, projected<iterator_t<R>, Proj>, const T1*> constexpr borrowed_iterator_t<R> replace(R&& r, const T1& old_value, const T2& new_value, Proj proj = {}); template<input_iterator I, sentinel_for<I> S, class Proj = identity, class T = projected_value_t<I, Proj>, indirect_unary_predicate<projected<I, Proj>> Pred> requires indirectly_writable<I, const T&> constexpr I replace_if(I first, S last, Pred pred, const T& new_value, Proj proj = {}); template<input_range R, class Proj = identity, class T = projected_value_t<I, Proj>, indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred> requires indirectly_writable<iterator_t<R>, const T&> constexpr borrowed_iterator_t<R> replace_if(R&& r, Pred pred, const T& new_value, Proj proj = {}); } template<class InputIterator, class OutputIterator, class T> constexpr OutputIterator replace_copy(InputIterator first, InputIterator last, OutputIterator result, const T& old_value, const T& new_value); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class T> ForwardIterator2 replace_copy(ExecutionPolicy&& exec, ForwardIterator1 first, ForwardIterator1 last, ForwardIterator2 result, const T& old_value, const T& new_value); template<class InputIterator, class OutputIterator, class Predicate, class T = iterator_traits<OutputIterator>::value_type> constexpr OutputIterator replace_copy_if(InputIterator first, InputIterator last, OutputIterator result, Predicate pred, const T& new_value); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class Predicate, class T = iterator_traits<ForwardIterator2>::value_type> ForwardIterator2 replace_copy_if(ExecutionPolicy&& exec, ForwardIterator1 first, ForwardIterator1 last, ForwardIterator2 result, Predicate pred, const T& new_value); namespace ranges { template<class I, class O> using replace_copy_result = in_out_result<I, O>; template<input_iterator I, sentinel_for<I> S, class O, class Proj = identity, class T1 = projected_value_t<I, Proj>, class T2 = iter_value_t<O>> requires indirectly_copyable<I, O> && indirect_binary_predicate<ranges::equal_to, projected<I, Proj>, const T1*> && output_iterator<O, const T2&> constexpr replace_copy_result<I, O> replace_copy(I first, S last, O result, const T1& old_value, const T2& new_value, Proj proj = {}); template<input_range R, class O, class Proj = identity, class T1 = projected_value_t<iterator_t<R>, Proj>, class T2 = iter_value_t<O>> requires indirectly_copyable<iterator_t<R>, O> && indirect_binary_predicate<ranges::equal_to, projected<iterator_t<R>, Proj>, const T1*> && output_iterator<O, const T2&> constexpr replace_copy_result<borrowed_iterator_t<R>, O> replace_copy(R&& r, O result, const T1& old_value, const T2& new_value, Proj proj = {}); template<class I, class O> using replace_copy_if_result = in_out_result<I, O>; template<input_iterator I, sentinel_for<I> S, class O, class T = iter_value_t<O> class Proj = identity, indirect_unary_predicate<projected<I, Proj>> Pred> requires indirectly_copyable<I, O> && output_iterator<O, const T&> constexpr replace_copy_if_result<I, O> replace_copy_if(I first, S last, O result, Pred pred, const T& new_value, Proj proj = {}); template<input_range R, class O, class T = iter_value_t<O>, class Proj = identity, indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred> requires indirectly_copyable<iterator_t<R>, O> && output_iterator<O, const T&> constexpr replace_copy_if_result<borrowed_iterator_t<R>, O> replace_copy_if(R&& r, O result, Pred pred, const T& new_value, Proj proj = {}); } // [alg.fill], fill template<class ForwardIterator, class T = iterator_traits<ForwardIterator>::value_type> constexpr void fill(ForwardIterator first, ForwardIterator last, const T& value); template<class ExecutionPolicy, class ForwardIterator, class T = iterator_traits<ForwardIterator>::value_type> void fill(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, const T& value); template<class OutputIterator, class Size, class T = iterator_traits<OutputIterator>::value_type> constexpr OutputIterator fill_n(OutputIterator first, Size n, const T& value); // freestanding template<class ExecutionPolicy, class ForwardIterator, class Size, class T = iterator_traits<ForwardIterator>::value_type> ForwardIterator fill_n(ExecutionPolicy&& exec, ForwardIterator first, Size n, const T& value); namespace ranges { template<class O, sentinel_for<O> S, class T = iter_value_t<O>> requires output_iterator<O, const T&> constexpr O fill(O first, S last, const T& value); template<class R, class T = range_value_t<R>> requires output_range<R, const T&> constexpr borrowed_iterator_t<R> fill(R&& r, const T& value); template<class O, class T = iter_value_t<O>> requires output_iterator<O, const T&> constexpr O fill_n(O first, iter_difference_t<O> n, const T& value); } // [alg.generate], generate template<class ForwardIterator, class Generator> constexpr void generate(ForwardIterator first, ForwardIterator last, Generator gen); template<class ExecutionPolicy, class ForwardIterator, class Generator> void generate(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, Generator gen); template<class OutputIterator, class Size, class Generator> constexpr OutputIterator generate_n(OutputIterator first, Size n, Generator gen); template<class ExecutionPolicy, class ForwardIterator, class Size, class Generator> ForwardIterator generate_n(ExecutionPolicy&& exec, ForwardIterator first, Size n, Generator gen); namespace ranges { template<input_or_output_iterator O, sentinel_for<O> S, copy_constructible F> requires invocable<F&> && indirectly_writable<O, invoke_result_t<F&>> constexpr O generate(O first, S last, F gen); template<class R, copy_constructible F> requires invocable<F&> && output_range<R, invoke_result_t<F&>> constexpr borrowed_iterator_t<R> generate(R&& r, F gen); template<input_or_output_iterator O, copy_constructible F> requires invocable<F&> && indirectly_writable<O, invoke_result_t<F&>> constexpr O generate_n(O first, iter_difference_t<O> n, F gen); } // [alg.remove], remove template<class ForwardIterator, class T = iterator_traits<ForwardIterator>::value_type> constexpr ForwardIterator remove(ForwardIterator first, ForwardIterator last, const T& value); template<class ExecutionPolicy, class ForwardIterator, class T = iterator_traits<ForwardIterator>::value_type> ForwardIterator remove(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, const T& value); template<class ForwardIterator, class Predicate> constexpr ForwardIterator remove_if(ForwardIterator first, ForwardIterator last, Predicate pred); template<class ExecutionPolicy, class ForwardIterator, class Predicate> ForwardIterator remove_if(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, Predicate pred); namespace ranges { template<permutable I, sentinel_for<I> S, class Proj = identity, class T = projected_value_t<I, Proj>> requires indirect_binary_predicate<ranges::equal_to, projected<I, Proj>, const T*> constexpr subrange<I> remove(I first, S last, const T& value, Proj proj = {}); template<forward_range R, class Proj = identity, class T = projected_value_t<iterator_t<R>, Proj>> requires permutable<iterator_t<R>> && indirect_binary_predicate<ranges::equal_to, projected<iterator_t<R>, Proj>, const T*> constexpr borrowed_subrange_t<R> remove(R&& r, const T& value, Proj proj = {}); template<permutable I, sentinel_for<I> S, class Proj = identity, indirect_unary_predicate<projected<I, Proj>> Pred> constexpr subrange<I> remove_if(I first, S last, Pred pred, Proj proj = {}); template<forward_range R, class Proj = identity, indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred> requires permutable<iterator_t<R>> constexpr borrowed_subrange_t<R> remove_if(R&& r, Pred pred, Proj proj = {}); } template<class InputIterator, class OutputIterator, class T = iterator_traits<InputIterator>::value_type> constexpr OutputIterator remove_copy(InputIterator first, InputIterator last, OutputIterator result, const T& value); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class T = iterator_traits<ForwardIterator1>::value_type> ForwardIterator2 remove_copy(ExecutionPolicy&& exec, ForwardIterator1 first, ForwardIterator1 last, ForwardIterator2 result, const T& value); template<class InputIterator, class OutputIterator, class Predicate> constexpr OutputIterator remove_copy_if(InputIterator first, InputIterator last, OutputIterator result, Predicate pred); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class Predicate> ForwardIterator2 remove_copy_if(ExecutionPolicy&& exec, ForwardIterator1 first, ForwardIterator1 last, ForwardIterator2 result, Predicate pred); namespace ranges { template<class I, class O> using remove_copy_result = in_out_result<I, O>; template<input_iterator I, sentinel_for<I> S, weakly_incrementable O, class Proj = identity, class T = projected_value_t<I, Proj>> requires indirectly_copyable<I, O> && indirect_binary_predicate<ranges::equal_to, projected<I, Proj>, const T*> constexpr remove_copy_result<I, O> remove_copy(I first, S last, O result, const T& value, Proj proj = {}); template<input_range R, weakly_incrementable O, class Proj = identity, class T = projected_value_t<iterator_t<R>, Proj>> requires indirectly_copyable<iterator_t<R>, O> && indirect_binary_predicate<ranges::equal_to, projected<iterator_t<R>, Proj>, const T*> constexpr remove_copy_result<borrowed_iterator_t<R>, O> remove_copy(R&& r, O result, const T& value, Proj proj = {}); template<class I, class O> using remove_copy_if_result = in_out_result<I, O>; template<input_iterator I, sentinel_for<I> S, weakly_incrementable O, class Proj = identity, indirect_unary_predicate<projected<I, Proj>> Pred> requires indirectly_copyable<I, O> constexpr remove_copy_if_result<I, O> remove_copy_if(I first, S last, O result, Pred pred, Proj proj = {}); template<input_range R, weakly_incrementable O, class Proj = identity, indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred> requires indirectly_copyable<iterator_t<R>, O> constexpr remove_copy_if_result<borrowed_iterator_t<R>, O> remove_copy_if(R&& r, O result, Pred pred, Proj proj = {}); } // [alg.unique], unique template<class ForwardIterator> constexpr ForwardIterator unique(ForwardIterator first, ForwardIterator last); template<class ForwardIterator, class BinaryPredicate> constexpr ForwardIterator unique(ForwardIterator first, ForwardIterator last, BinaryPredicate pred); template<class ExecutionPolicy, class ForwardIterator> ForwardIterator unique(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last); template<class ExecutionPolicy, class ForwardIterator, class BinaryPredicate> ForwardIterator unique(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, BinaryPredicate pred); namespace ranges { template<permutable I, sentinel_for<I> S, class Proj = identity, indirect_equivalence_relation<projected<I, Proj>> C = ranges::equal_to> constexpr subrange<I> unique(I first, S last, C comp = {}, Proj proj = {}); template<forward_range R, class Proj = identity, indirect_equivalence_relation<projected<iterator_t<R>, Proj>> C = ranges::equal_to> requires permutable<iterator_t<R>> constexpr borrowed_subrange_t<R> unique(R&& r, C comp = {}, Proj proj = {}); } template<class InputIterator, class OutputIterator> constexpr OutputIterator unique_copy(InputIterator first, InputIterator last, OutputIterator result); template<class InputIterator, class OutputIterator, class BinaryPredicate> constexpr OutputIterator unique_copy(InputIterator first, InputIterator last, OutputIterator result, BinaryPredicate pred); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2> ForwardIterator2 unique_copy(ExecutionPolicy&& exec, ForwardIterator1 first, ForwardIterator1 last, ForwardIterator2 result); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class BinaryPredicate> ForwardIterator2 unique_copy(ExecutionPolicy&& exec, ForwardIterator1 first, ForwardIterator1 last, ForwardIterator2 result, BinaryPredicate pred); namespace ranges { template<class I, class O> using unique_copy_result = in_out_result<I, O>; template<input_iterator I, sentinel_for<I> S, weakly_incrementable O, class Proj = identity, indirect_equivalence_relation<projected<I, Proj>> C = ranges::equal_to> requires indirectly_copyable<I, O> && (forward_iterator<I> || (input_iterator<O> && same_as<iter_value_t<I>, iter_value_t<O>>) || indirectly_copyable_storable<I, O>) constexpr unique_copy_result<I, O> unique_copy(I first, S last, O result, C comp = {}, Proj proj = {}); template<input_range R, weakly_incrementable O, class Proj = identity, indirect_equivalence_relation<projected<iterator_t<R>, Proj>> C = ranges::equal_to> requires indirectly_copyable<iterator_t<R>, O> && (forward_iterator<iterator_t<R>> || (input_iterator<O> && same_as<range_value_t<R>, iter_value_t<O>>) || indirectly_copyable_storable<iterator_t<R>, O>) constexpr unique_copy_result<borrowed_iterator_t<R>, O> unique_copy(R&& r, O result, C comp = {}, Proj proj = {}); } // [alg.reverse], reverse template<class BidirectionalIterator> constexpr void reverse(BidirectionalIterator first, BidirectionalIterator last); template<class ExecutionPolicy, class BidirectionalIterator> void reverse(ExecutionPolicy&& exec, BidirectionalIterator first, BidirectionalIterator last); namespace ranges { template<bidirectional_iterator I, sentinel_for<I> S> requires permutable<I> constexpr I reverse(I first, S last); template<bidirectional_range R> requires permutable<iterator_t<R>> constexpr borrowed_iterator_t<R> reverse(R&& r); } template<class BidirectionalIterator, class OutputIterator> constexpr OutputIterator reverse_copy(BidirectionalIterator first, BidirectionalIterator last, OutputIterator result); template<class ExecutionPolicy, class BidirectionalIterator, class ForwardIterator> ForwardIterator reverse_copy(ExecutionPolicy&& exec, BidirectionalIterator first, BidirectionalIterator last, ForwardIterator result); namespace ranges { template<class I, class O> using reverse_copy_result = in_out_result<I, O>; template<bidirectional_iterator I, sentinel_for<I> S, weakly_incrementable O> requires indirectly_copyable<I, O> constexpr reverse_copy_result<I, O> reverse_copy(I first, S last, O result); template<bidirectional_range R, weakly_incrementable O> requires indirectly_copyable<iterator_t<R>, O> constexpr reverse_copy_result<borrowed_iterator_t<R>, O> reverse_copy(R&& r, O result); } // [alg.rotate], rotate template<class ForwardIterator> constexpr ForwardIterator rotate(ForwardIterator first, ForwardIterator middle, ForwardIterator last); template<class ExecutionPolicy, class ForwardIterator> ForwardIterator rotate(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator middle, ForwardIterator last); namespace ranges { template<permutable I, sentinel_for<I> S> constexpr subrange<I> rotate(I first, I middle, S last); template<forward_range R> requires permutable<iterator_t<R>> constexpr borrowed_subrange_t<R> rotate(R&& r, iterator_t<R> middle); } template<class ForwardIterator, class OutputIterator> constexpr OutputIterator rotate_copy(ForwardIterator first, ForwardIterator middle, ForwardIterator last, OutputIterator result); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2> ForwardIterator2 rotate_copy(ExecutionPolicy&& exec, ForwardIterator1 first, ForwardIterator1 middle, ForwardIterator1 last, ForwardIterator2 result); namespace ranges { template<class I, class O> using rotate_copy_result = in_out_result<I, O>; template<forward_iterator I, sentinel_for<I> S, weakly_incrementable O> requires indirectly_copyable<I, O> constexpr rotate_copy_result<I, O> rotate_copy(I first, I middle, S last, O result); template<forward_range R, weakly_incrementable O> requires indirectly_copyable<iterator_t<R>, O> constexpr rotate_copy_result<borrowed_iterator_t<R>, O> rotate_copy(R&& r, iterator_t<R> middle, O result); } // [alg.random.sample], sample template<class PopulationIterator, class SampleIterator, class Distance, class UniformRandomBitGenerator> SampleIterator sample(PopulationIterator first, PopulationIterator last, SampleIterator out, Distance n, UniformRandomBitGenerator&& g); namespace ranges { template<input_iterator I, sentinel_for<I> S, weakly_incrementable O, class Gen> requires (forward_iterator<I> || random_access_iterator<O>) && indirectly_copyable<I, O> && uniform_random_bit_generator<remove_reference_t<Gen>> O sample(I first, S last, O out, iter_difference_t<I> n, Gen&& g); template<input_range R, weakly_incrementable O, class Gen> requires (forward_range<R> || random_access_iterator<O>) && indirectly_copyable<iterator_t<R>, O> && uniform_random_bit_generator<remove_reference_t<Gen>> O sample(R&& r, O out, range_difference_t<R> n, Gen&& g); } // [alg.random.shuffle], shuffle template<class RandomAccessIterator, class UniformRandomBitGenerator> void shuffle(RandomAccessIterator first, RandomAccessIterator last, UniformRandomBitGenerator&& g); namespace ranges { template<random_access_iterator I, sentinel_for<I> S, class Gen> requires permutable<I> && uniform_random_bit_generator<remove_reference_t<Gen>> I shuffle(I first, S last, Gen&& g); template<random_access_range R, class Gen> requires permutable<iterator_t<R>> && uniform_random_bit_generator<remove_reference_t<Gen>> borrowed_iterator_t<R> shuffle(R&& r, Gen&& g); } // [alg.shift], shift template<class ForwardIterator> constexpr ForwardIterator shift_left(ForwardIterator first, ForwardIterator last, typename iterator_traits<ForwardIterator>::difference_type n); template<class ExecutionPolicy, class ForwardIterator> ForwardIterator shift_left(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, typename iterator_traits<ForwardIterator>::difference_type n); namespace ranges { template<permutable I, sentinel_for<I> S> constexpr subrange<I> shift_left(I first, S last, iter_difference_t<I> n); template<forward_range R> requires permutable<iterator_t<R>> constexpr borrowed_subrange_t<R> shift_left(R&& r, range_difference_t<R> n); } template<class ForwardIterator> constexpr ForwardIterator shift_right(ForwardIterator first, ForwardIterator last, typename iterator_traits<ForwardIterator>::difference_type n); template<class ExecutionPolicy, class ForwardIterator> ForwardIterator shift_right(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, typename iterator_traits<ForwardIterator>::difference_type n); namespace ranges { template<permutable I, sentinel_for<I> S> constexpr subrange<I> shift_right(I first, S last, iter_difference_t<I> n); template<forward_range R> requires permutable<iterator_t<R>> constexpr borrowed_subrange_t<R> shift_right(R&& r, range_difference_t<R> n); } // [alg.sorting], sorting and related operations // [alg.sort], sorting template<class RandomAccessIterator> constexpr void sort(RandomAccessIterator first, RandomAccessIterator last); template<class RandomAccessIterator, class Compare> constexpr void sort(RandomAccessIterator first, RandomAccessIterator last, Compare comp); template<class ExecutionPolicy, class RandomAccessIterator> void sort(ExecutionPolicy&& exec, RandomAccessIterator first, RandomAccessIterator last); template<class ExecutionPolicy, class RandomAccessIterator, class Compare> void sort(ExecutionPolicy&& exec, RandomAccessIterator first, RandomAccessIterator last, Compare comp); namespace ranges { template<random_access_iterator I, sentinel_for<I> S, class Comp = ranges::less, class Proj = identity> requires sortable<I, Comp, Proj> constexpr I sort(I first, S last, Comp comp = {}, Proj proj = {}); template<random_access_range R, class Comp = ranges::less, class Proj = identity> requires sortable<iterator_t<R>, Comp, Proj> constexpr borrowed_iterator_t<R> sort(R&& r, Comp comp = {}, Proj proj = {}); } template<class RandomAccessIterator> constexpr void stable_sort(RandomAccessIterator first, RandomAccessIterator last); template<class RandomAccessIterator, class Compare> constexpr void stable_sort(RandomAccessIterator first, RandomAccessIterator last, Compare comp); template<class ExecutionPolicy, class RandomAccessIterator> void stable_sort(ExecutionPolicy&& exec, RandomAccessIterator first, RandomAccessIterator last); template<class ExecutionPolicy, class RandomAccessIterator, class Compare> void stable_sort(ExecutionPolicy&& exec, RandomAccessIterator first, RandomAccessIterator last, Compare comp); namespace ranges { template<random_access_iterator I, sentinel_for<I> S, class Comp = ranges::less, class Proj = identity> requires sortable<I, Comp, Proj> constexpr I stable_sort(I first, S last, Comp comp = {}, Proj proj = {}); template<random_access_range R, class Comp = ranges::less, class Proj = identity> requires sortable<iterator_t<R>, Comp, Proj> constexpr borrowed_iterator_t<R> stable_sort(R&& r, Comp comp = {}, Proj proj = {}); } template<class RandomAccessIterator> constexpr void partial_sort(RandomAccessIterator first, RandomAccessIterator middle, RandomAccessIterator last); template<class RandomAccessIterator, class Compare> constexpr void partial_sort(RandomAccessIterator first, RandomAccessIterator middle, RandomAccessIterator last, Compare comp); template<class ExecutionPolicy, class RandomAccessIterator> void partial_sort(ExecutionPolicy&& exec, RandomAccessIterator first, RandomAccessIterator middle, RandomAccessIterator last); template<class ExecutionPolicy, class RandomAccessIterator, class Compare> void partial_sort(ExecutionPolicy&& exec, RandomAccessIterator first, RandomAccessIterator middle, RandomAccessIterator last, Compare comp); namespace ranges { template<random_access_iterator I, sentinel_for<I> S, class Comp = ranges::less, class Proj = identity> requires sortable<I, Comp, Proj> constexpr I partial_sort(I first, I middle, S last, Comp comp = {}, Proj proj = {}); template<random_access_range R, class Comp = ranges::less, class Proj = identity> requires sortable<iterator_t<R>, Comp, Proj> constexpr borrowed_iterator_t<R> partial_sort(R&& r, iterator_t<R> middle, Comp comp = {}, Proj proj = {}); } template<class InputIterator, class RandomAccessIterator> constexpr RandomAccessIterator partial_sort_copy(InputIterator first, InputIterator last, RandomAccessIterator result_first, RandomAccessIterator result_last); template<class InputIterator, class RandomAccessIterator, class Compare> constexpr RandomAccessIterator partial_sort_copy(InputIterator first, InputIterator last, RandomAccessIterator result_first, RandomAccessIterator result_last, Compare comp); template<class ExecutionPolicy, class ForwardIterator, class RandomAccessIterator> RandomAccessIterator partial_sort_copy(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, RandomAccessIterator result_first, RandomAccessIterator result_last); template<class ExecutionPolicy, class ForwardIterator, class RandomAccessIterator, class Compare> RandomAccessIterator partial_sort_copy(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, RandomAccessIterator result_first, RandomAccessIterator result_last, Compare comp); namespace ranges { template<class I, class O> using partial_sort_copy_result = in_out_result<I, O>; template<input_iterator I1, sentinel_for<I1> S1, random_access_iterator I2, sentinel_for<I2> S2, class Comp = ranges::less, class Proj1 = identity, class Proj2 = identity> requires indirectly_copyable<I1, I2> && sortable<I2, Comp, Proj2> && indirect_strict_weak_order<Comp, projected<I1, Proj1>, projected<I2, Proj2>> constexpr partial_sort_copy_result<I1, I2> partial_sort_copy(I1 first, S1 last, I2 result_first, S2 result_last, Comp comp = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); template<input_range R1, random_access_range R2, class Comp = ranges::less, class Proj1 = identity, class Proj2 = identity> requires indirectly_copyable<iterator_t<R1>, iterator_t<R2>> && sortable<iterator_t<R2>, Comp, Proj2> && indirect_strict_weak_order<Comp, projected<iterator_t<R1>, Proj1>, projected<iterator_t<R2>, Proj2>> constexpr partial_sort_copy_result<borrowed_iterator_t<R1>, borrowed_iterator_t<R2>> partial_sort_copy(R1&& r, R2&& result_r, Comp comp = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); } template<class ForwardIterator> constexpr bool is_sorted(ForwardIterator first, ForwardIterator last); template<class ForwardIterator, class Compare> constexpr bool is_sorted(ForwardIterator first, ForwardIterator last, Compare comp); template<class ExecutionPolicy, class ForwardIterator> bool is_sorted(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last); template<class ExecutionPolicy, class ForwardIterator, class Compare> bool is_sorted(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, Compare comp); namespace ranges { template<forward_iterator I, sentinel_for<I> S, class Proj = identity, indirect_strict_weak_order<projected<I, Proj>> Comp = ranges::less> constexpr bool is_sorted(I first, S last, Comp comp = {}, Proj proj = {}); template<forward_range R, class Proj = identity, indirect_strict_weak_order<projected<iterator_t<R>, Proj>> Comp = ranges::less> constexpr bool is_sorted(R&& r, Comp comp = {}, Proj proj = {}); } template<class ForwardIterator> constexpr ForwardIterator is_sorted_until(ForwardIterator first, ForwardIterator last); template<class ForwardIterator, class Compare> constexpr ForwardIterator is_sorted_until(ForwardIterator first, ForwardIterator last, Compare comp); template<class ExecutionPolicy, class ForwardIterator> ForwardIterator is_sorted_until(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last); template<class ExecutionPolicy, class ForwardIterator, class Compare> ForwardIterator is_sorted_until(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, Compare comp); namespace ranges { template<forward_iterator I, sentinel_for<I> S, class Proj = identity, indirect_strict_weak_order<projected<I, Proj>> Comp = ranges::less> constexpr I is_sorted_until(I first, S last, Comp comp = {}, Proj proj = {}); template<forward_range R, class Proj = identity, indirect_strict_weak_order<projected<iterator_t<R>, Proj>> Comp = ranges::less> constexpr borrowed_iterator_t<R> is_sorted_until(R&& r, Comp comp = {}, Proj proj = {}); } // [alg.nth.element], Nth element template<class RandomAccessIterator> constexpr void nth_element(RandomAccessIterator first, RandomAccessIterator nth, RandomAccessIterator last); template<class RandomAccessIterator, class Compare> constexpr void nth_element(RandomAccessIterator first, RandomAccessIterator nth, RandomAccessIterator last, Compare comp); template<class ExecutionPolicy, class RandomAccessIterator> void nth_element(ExecutionPolicy&& exec, RandomAccessIterator first, RandomAccessIterator nth, RandomAccessIterator last); template<class ExecutionPolicy, class RandomAccessIterator, class Compare> void nth_element(ExecutionPolicy&& exec, RandomAccessIterator first, RandomAccessIterator nth, RandomAccessIterator last, Compare comp); namespace ranges { template<random_access_iterator I, sentinel_for<I> S, class Comp = ranges::less, class Proj = identity> requires sortable<I, Comp, Proj> constexpr I nth_element(I first, I nth, S last, Comp comp = {}, Proj proj = {}); template<random_access_range R, class Comp = ranges::less, class Proj = identity> requires sortable<iterator_t<R>, Comp, Proj> constexpr borrowed_iterator_t<R> nth_element(R&& r, iterator_t<R> nth, Comp comp = {}, Proj proj = {}); } // [alg.binary.search], binary search template<class ForwardIterator, class T = iterator_traits<ForwardIterator>::value_type> constexpr ForwardIterator lower_bound(ForwardIterator first, ForwardIterator last, const T& value); template<class ForwardIterator, class T = iterator_traits<ForwardIterator>::value_type, class Compare> constexpr ForwardIterator lower_bound(ForwardIterator first, ForwardIterator last, const T& value, Compare comp); namespace ranges { template<forward_iterator I, sentinel_for<I> S, class Proj = identity, class T = projected_value_t<I, Proj>, indirect_strict_weak_order<const T*, projected<I, Proj>> Comp = ranges::less> constexpr I lower_bound(I first, S last, const T& value, Comp comp = {}, Proj proj = {}); template<forward_range R, class Proj = identity, class T = projected_value_t<iterator_t<R>, Proj>, indirect_strict_weak_order<const T*, projected<iterator_t<R>, Proj>> Comp = ranges::less> constexpr borrowed_iterator_t<R> lower_bound(R&& r, const T& value, Comp comp = {}, Proj proj = {}); } template<class ForwardIterator, class T = iterator_traits<ForwardIterator>::value_type> constexpr ForwardIterator upper_bound(ForwardIterator first, ForwardIterator last, const T& value); template<class ForwardIterator, class T = iterator_traits<ForwardIterator>::value_type, class Compare> constexpr ForwardIterator upper_bound(ForwardIterator first, ForwardIterator last, const T& value, Compare comp); namespace ranges { template<forward_iterator I, sentinel_for<I> S, class Proj = identity, class T = projected_value_t<I, Proj> indirect_strict_weak_order<const T*, projected<I, Proj>> Comp = ranges::less> constexpr I upper_bound(I first, S last, const T& value, Comp comp = {}, Proj proj = {}); template<forward_range R, class Proj = identity, class T = projected_value_t<iterator_t<R>, Proj>, indirect_strict_weak_order<const T*, projected<iterator_t<R>, Proj>> Comp = ranges::less> constexpr borrowed_iterator_t<R> upper_bound(R&& r, const T& value, Comp comp = {}, Proj proj = {}); } template<class ForwardIterator, class T = iterator_traits<ForwardIterator>::value_type> constexpr pair<ForwardIterator, ForwardIterator> equal_range(ForwardIterator first, ForwardIterator last, const T& value); template<class ForwardIterator, class T = iterator_traits<ForwardIterator>::value_type, class Compare> constexpr pair<ForwardIterator, ForwardIterator> equal_range(ForwardIterator first, ForwardIterator last, const T& value, Compare comp); namespace ranges { template<forward_iterator I, sentinel_for<I> S, class Proj = identity, class T = projected_value_t<I, Proj, indirect_strict_weak_order<const T*, projected<I, Proj>> Comp = ranges::less> constexpr subrange<I> equal_range(I first, S last, const T& value, Comp comp = {}, Proj proj = {}); template<forward_range R, class Proj = identity, class T = projected_value_t<iterator_t<R>, Proj>, indirect_strict_weak_order<const T*, projected<iterator_t<R>, Proj>> Comp = ranges::less> constexpr borrowed_subrange_t<R> equal_range(R&& r, const T& value, Comp comp = {}, Proj proj = {}); } template<class ForwardIterator, class T = iterator_traits<ForwardIterator>::value_type> constexpr bool binary_search(ForwardIterator first, ForwardIterator last, const T& value); template<class ForwardIterator, class T = iterator_traits<ForwardIterator>::value_type, class Compare> constexpr bool binary_search(ForwardIterator first, ForwardIterator last, const T& value, Compare comp); namespace ranges { template<forward_iterator I, sentinel_for<I> S, class Proj = identity, class T = projected_value_t<I, Proj>, indirect_strict_weak_order<const T*, projected<I, Proj>> Comp = ranges::less> constexpr bool binary_search(I first, S last, const T& value, Comp comp = {}, Proj proj = {}); template<forward_range R, class Proj = identity, class T = projected_value_t<iterator_t<R>, Proj>, indirect_strict_weak_order<const T*, projected<iterator_t<R>, Proj>> Comp = ranges::less> constexpr bool binary_search(R&& r, const T& value, Comp comp = {}, Proj proj = {}); } // [alg.partitions], partitions template<class InputIterator, class Predicate> constexpr bool is_partitioned(InputIterator first, InputIterator last, Predicate pred); template<class ExecutionPolicy, class ForwardIterator, class Predicate> bool is_partitioned(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, Predicate pred); namespace ranges { template<input_iterator I, sentinel_for<I> S, class Proj = identity, indirect_unary_predicate<projected<I, Proj>> Pred> constexpr bool is_partitioned(I first, S last, Pred pred, Proj proj = {}); template<input_range R, class Proj = identity, indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred> constexpr bool is_partitioned(R&& r, Pred pred, Proj proj = {}); } template<class ForwardIterator, class Predicate> constexpr ForwardIterator partition(ForwardIterator first, ForwardIterator last, Predicate pred); template<class ExecutionPolicy, class ForwardIterator, class Predicate> ForwardIterator partition(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, Predicate pred); namespace ranges { template<permutable I, sentinel_for<I> S, class Proj = identity, indirect_unary_predicate<projected<I, Proj>> Pred> constexpr subrange<I> partition(I first, S last, Pred pred, Proj proj = {}); template<forward_range R, class Proj = identity, indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred> requires permutable<iterator_t<R>> constexpr borrowed_subrange_t<R> partition(R&& r, Pred pred, Proj proj = {}); } template<class BidirectionalIterator, class Predicate> constexpr BidirectionalIterator stable_partition(BidirectionalIterator first, BidirectionalIterator last, Predicate pred); template<class ExecutionPolicy, class BidirectionalIterator, class Predicate> BidirectionalIterator stable_partition(ExecutionPolicy&& exec, BidirectionalIterator first, BidirectionalIterator last, Predicate pred); namespace ranges { template<bidirectional_iterator I, sentinel_for<I> S, class Proj = identity, indirect_unary_predicate<projected<I, Proj>> Pred> requires permutable<I> constexpr subrange<I> stable_partition(I first, S last, Pred pred, Proj proj = {}); template<bidirectional_range R, class Proj = identity, indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred> requires permutable<iterator_t<R>> constexpr borrowed_subrange_t<R> stable_partition(R&& r, Pred pred, Proj proj = {}); } template<class InputIterator, class OutputIterator1, class OutputIterator2, class Predicate> constexpr pair<OutputIterator1, OutputIterator2> partition_copy(InputIterator first, InputIterator last, OutputIterator1 out_true, OutputIterator2 out_false, Predicate pred); template<class ExecutionPolicy, class ForwardIterator, class ForwardIterator1, class ForwardIterator2, class Predicate> pair<ForwardIterator1, ForwardIterator2> partition_copy(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, ForwardIterator1 out_true, ForwardIterator2 out_false, Predicate pred); namespace ranges { template<class I, class O1, class O2> using partition_copy_result = in_out_out_result<I, O1, O2>; template<input_iterator I, sentinel_for<I> S, weakly_incrementable O1, weakly_incrementable O2, class Proj = identity, indirect_unary_predicate<projected<I, Proj>> Pred> requires indirectly_copyable<I, O1> && indirectly_copyable<I, O2> constexpr partition_copy_result<I, O1, O2> partition_copy(I first, S last, O1 out_true, O2 out_false, Pred pred, Proj proj = {}); template<input_range R, weakly_incrementable O1, weakly_incrementable O2, class Proj = identity, indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred> requires indirectly_copyable<iterator_t<R>, O1> && indirectly_copyable<iterator_t<R>, O2> constexpr partition_copy_result<borrowed_iterator_t<R>, O1, O2> partition_copy(R&& r, O1 out_true, O2 out_false, Pred pred, Proj proj = {}); } template<class ForwardIterator, class Predicate> constexpr ForwardIterator partition_point(ForwardIterator first, ForwardIterator last, Predicate pred); namespace ranges { template<forward_iterator I, sentinel_for<I> S, class Proj = identity, indirect_unary_predicate<projected<I, Proj>> Pred> constexpr I partition_point(I first, S last, Pred pred, Proj proj = {}); template<forward_range R, class Proj = identity, indirect_unary_predicate<projected<iterator_t<R>, Proj>> Pred> constexpr borrowed_iterator_t<R> partition_point(R&& r, Pred pred, Proj proj = {}); } // [alg.merge], merge template<class InputIterator1, class InputIterator2, class OutputIterator> constexpr OutputIterator merge(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2, OutputIterator result); template<class InputIterator1, class InputIterator2, class OutputIterator, class Compare> constexpr OutputIterator merge(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2, OutputIterator result, Compare comp); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class ForwardIterator> ForwardIterator merge(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, ForwardIterator result); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class ForwardIterator, class Compare> ForwardIterator merge(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, ForwardIterator result, Compare comp); namespace ranges { template<class I1, class I2, class O> using merge_result = in_in_out_result<I1, I2, O>; template<input_iterator I1, sentinel_for<I1> S1, input_iterator I2, sentinel_for<I2> S2, weakly_incrementable O, class Comp = ranges::less, class Proj1 = identity, class Proj2 = identity> requires mergeable<I1, I2, O, Comp, Proj1, Proj2> constexpr merge_result<I1, I2, O> merge(I1 first1, S1 last1, I2 first2, S2 last2, O result, Comp comp = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); template<input_range R1, input_range R2, weakly_incrementable O, class Comp = ranges::less, class Proj1 = identity, class Proj2 = identity> requires mergeable<iterator_t<R1>, iterator_t<R2>, O, Comp, Proj1, Proj2> constexpr merge_result<borrowed_iterator_t<R1>, borrowed_iterator_t<R2>, O> merge(R1&& r1, R2&& r2, O result, Comp comp = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); } template<class BidirectionalIterator> constexpr void inplace_merge(BidirectionalIterator first, BidirectionalIterator middle, BidirectionalIterator last); template<class BidirectionalIterator, class Compare> constexpr void inplace_merge(BidirectionalIterator first, BidirectionalIterator middle, BidirectionalIterator last, Compare comp); template<class ExecutionPolicy, class BidirectionalIterator> void inplace_merge(ExecutionPolicy&& exec, BidirectionalIterator first, BidirectionalIterator middle, BidirectionalIterator last); template<class ExecutionPolicy, class BidirectionalIterator, class Compare> void inplace_merge(ExecutionPolicy&& exec, BidirectionalIterator first, BidirectionalIterator middle, BidirectionalIterator last, Compare comp); namespace ranges { template<bidirectional_iterator I, sentinel_for<I> S, class Comp = ranges::less, class Proj = identity> requires sortable<I, Comp, Proj> constexpr I inplace_merge(I first, I middle, S last, Comp comp = {}, Proj proj = {}); template<bidirectional_range R, class Comp = ranges::less, class Proj = identity> requires sortable<iterator_t<R>, Comp, Proj> constexpr borrowed_iterator_t<R> inplace_merge(R&& r, iterator_t<R> middle, Comp comp = {}, Proj proj = {}); } // [alg.set.operations], set operations template<class InputIterator1, class InputIterator2> constexpr bool includes(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2); template<class InputIterator1, class InputIterator2, class Compare> constexpr bool includes(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2, Compare comp); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2> bool includes(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class Compare> bool includes(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, Compare comp); namespace ranges { template<input_iterator I1, sentinel_for<I1> S1, input_iterator I2, sentinel_for<I2> S2, class Proj1 = identity, class Proj2 = identity, indirect_strict_weak_order<projected<I1, Proj1>, projected<I2, Proj2>> Comp = ranges::less> constexpr bool includes(I1 first1, S1 last1, I2 first2, S2 last2, Comp comp = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); template<input_range R1, input_range R2, class Proj1 = identity, class Proj2 = identity, indirect_strict_weak_order<projected<iterator_t<R1>, Proj1>, projected<iterator_t<R2>, Proj2>> Comp = ranges::less> constexpr bool includes(R1&& r1, R2&& r2, Comp comp = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); } template<class InputIterator1, class InputIterator2, class OutputIterator> constexpr OutputIterator set_union(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2, OutputIterator result); template<class InputIterator1, class InputIterator2, class OutputIterator, class Compare> constexpr OutputIterator set_union(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2, OutputIterator result, Compare comp); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class ForwardIterator> ForwardIterator set_union(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, ForwardIterator result); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class ForwardIterator, class Compare> ForwardIterator set_union(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, ForwardIterator result, Compare comp); namespace ranges { template<class I1, class I2, class O> using set_union_result = in_in_out_result<I1, I2, O>; template<input_iterator I1, sentinel_for<I1> S1, input_iterator I2, sentinel_for<I2> S2, weakly_incrementable O, class Comp = ranges::less, class Proj1 = identity, class Proj2 = identity> requires mergeable<I1, I2, O, Comp, Proj1, Proj2> constexpr set_union_result<I1, I2, O> set_union(I1 first1, S1 last1, I2 first2, S2 last2, O result, Comp comp = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); template<input_range R1, input_range R2, weakly_incrementable O, class Comp = ranges::less, class Proj1 = identity, class Proj2 = identity> requires mergeable<iterator_t<R1>, iterator_t<R2>, O, Comp, Proj1, Proj2> constexpr set_union_result<borrowed_iterator_t<R1>, borrowed_iterator_t<R2>, O> set_union(R1&& r1, R2&& r2, O result, Comp comp = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); } template<class InputIterator1, class InputIterator2, class OutputIterator> constexpr OutputIterator set_intersection(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2, OutputIterator result); template<class InputIterator1, class InputIterator2, class OutputIterator, class Compare> constexpr OutputIterator set_intersection(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2, OutputIterator result, Compare comp); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class ForwardIterator> ForwardIterator set_intersection(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, ForwardIterator result); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class ForwardIterator, class Compare> ForwardIterator set_intersection(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, ForwardIterator result, Compare comp); namespace ranges { template<class I1, class I2, class O> using set_intersection_result = in_in_out_result<I1, I2, O>; template<input_iterator I1, sentinel_for<I1> S1, input_iterator I2, sentinel_for<I2> S2, weakly_incrementable O, class Comp = ranges::less, class Proj1 = identity, class Proj2 = identity> requires mergeable<I1, I2, O, Comp, Proj1, Proj2> constexpr set_intersection_result<I1, I2, O> set_intersection(I1 first1, S1 last1, I2 first2, S2 last2, O result, Comp comp = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); template<input_range R1, input_range R2, weakly_incrementable O, class Comp = ranges::less, class Proj1 = identity, class Proj2 = identity> requires mergeable<iterator_t<R1>, iterator_t<R2>, O, Comp, Proj1, Proj2> constexpr set_intersection_result<borrowed_iterator_t<R1>, borrowed_iterator_t<R2>, O> set_intersection(R1&& r1, R2&& r2, O result, Comp comp = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); } template<class InputIterator1, class InputIterator2, class OutputIterator> constexpr OutputIterator set_difference(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2, OutputIterator result); template<class InputIterator1, class InputIterator2, class OutputIterator, class Compare> constexpr OutputIterator set_difference(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2, OutputIterator result, Compare comp); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class ForwardIterator> ForwardIterator set_difference(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, ForwardIterator result); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class ForwardIterator, class Compare> ForwardIterator set_difference(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, ForwardIterator result, Compare comp); namespace ranges { template<class I, class O> using set_difference_result = in_out_result<I, O>; template<input_iterator I1, sentinel_for<I1> S1, input_iterator I2, sentinel_for<I2> S2, weakly_incrementable O, class Comp = ranges::less, class Proj1 = identity, class Proj2 = identity> requires mergeable<I1, I2, O, Comp, Proj1, Proj2> constexpr set_difference_result<I1, O> set_difference(I1 first1, S1 last1, I2 first2, S2 last2, O result, Comp comp = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); template<input_range R1, input_range R2, weakly_incrementable O, class Comp = ranges::less, class Proj1 = identity, class Proj2 = identity> requires mergeable<iterator_t<R1>, iterator_t<R2>, O, Comp, Proj1, Proj2> constexpr set_difference_result<borrowed_iterator_t<R1>, O> set_difference(R1&& r1, R2&& r2, O result, Comp comp = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); } template<class InputIterator1, class InputIterator2, class OutputIterator> constexpr OutputIterator set_symmetric_difference(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2, OutputIterator result); template<class InputIterator1, class InputIterator2, class OutputIterator, class Compare> constexpr OutputIterator set_symmetric_difference(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2, OutputIterator result, Compare comp); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class ForwardIterator> ForwardIterator set_symmetric_difference(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, ForwardIterator result); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class ForwardIterator, class Compare> ForwardIterator set_symmetric_difference(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, ForwardIterator result, Compare comp); namespace ranges { template<class I1, class I2, class O> using set_symmetric_difference_result = in_in_out_result<I1, I2, O>; template<input_iterator I1, sentinel_for<I1> S1, input_iterator I2, sentinel_for<I2> S2, weakly_incrementable O, class Comp = ranges::less, class Proj1 = identity, class Proj2 = identity> requires mergeable<I1, I2, O, Comp, Proj1, Proj2> constexpr set_symmetric_difference_result<I1, I2, O> set_symmetric_difference(I1 first1, S1 last1, I2 first2, S2 last2, O result, Comp comp = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); template<input_range R1, input_range R2, weakly_incrementable O, class Comp = ranges::less, class Proj1 = identity, class Proj2 = identity> requires mergeable<iterator_t<R1>, iterator_t<R2>, O, Comp, Proj1, Proj2> constexpr set_symmetric_difference_result<borrowed_iterator_t<R1>, borrowed_iterator_t<R2>, O> set_symmetric_difference(R1&& r1, R2&& r2, O result, Comp comp = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); } // [alg.heap.operations], heap operations template<class RandomAccessIterator> constexpr void push_heap(RandomAccessIterator first, RandomAccessIterator last); template<class RandomAccessIterator, class Compare> constexpr void push_heap(RandomAccessIterator first, RandomAccessIterator last, Compare comp); namespace ranges { template<random_access_iterator I, sentinel_for<I> S, class Comp = ranges::less, class Proj = identity> requires sortable<I, Comp, Proj> constexpr I push_heap(I first, S last, Comp comp = {}, Proj proj = {}); template<random_access_range R, class Comp = ranges::less, class Proj = identity> requires sortable<iterator_t<R>, Comp, Proj> constexpr borrowed_iterator_t<R> push_heap(R&& r, Comp comp = {}, Proj proj = {}); } template<class RandomAccessIterator> constexpr void pop_heap(RandomAccessIterator first, RandomAccessIterator last); template<class RandomAccessIterator, class Compare> constexpr void pop_heap(RandomAccessIterator first, RandomAccessIterator last, Compare comp); namespace ranges { template<random_access_iterator I, sentinel_for<I> S, class Comp = ranges::less, class Proj = identity> requires sortable<I, Comp, Proj> constexpr I pop_heap(I first, S last, Comp comp = {}, Proj proj = {}); template<random_access_range R, class Comp = ranges::less, class Proj = identity> requires sortable<iterator_t<R>, Comp, Proj> constexpr borrowed_iterator_t<R> pop_heap(R&& r, Comp comp = {}, Proj proj = {}); } template<class RandomAccessIterator> constexpr void make_heap(RandomAccessIterator first, RandomAccessIterator last); template<class RandomAccessIterator, class Compare> constexpr void make_heap(RandomAccessIterator first, RandomAccessIterator last, Compare comp); namespace ranges { template<random_access_iterator I, sentinel_for<I> S, class Comp = ranges::less, class Proj = identity> requires sortable<I, Comp, Proj> constexpr I make_heap(I first, S last, Comp comp = {}, Proj proj = {}); template<random_access_range R, class Comp = ranges::less, class Proj = identity> requires sortable<iterator_t<R>, Comp, Proj> constexpr borrowed_iterator_t<R> make_heap(R&& r, Comp comp = {}, Proj proj = {}); } template<class RandomAccessIterator> constexpr void sort_heap(RandomAccessIterator first, RandomAccessIterator last); template<class RandomAccessIterator, class Compare> constexpr void sort_heap(RandomAccessIterator first, RandomAccessIterator last, Compare comp); namespace ranges { template<random_access_iterator I, sentinel_for<I> S, class Comp = ranges::less, class Proj = identity> requires sortable<I, Comp, Proj> constexpr I sort_heap(I first, S last, Comp comp = {}, Proj proj = {}); template<random_access_range R, class Comp = ranges::less, class Proj = identity> requires sortable<iterator_t<R>, Comp, Proj> constexpr borrowed_iterator_t<R> sort_heap(R&& r, Comp comp = {}, Proj proj = {}); } template<class RandomAccessIterator> constexpr bool is_heap(RandomAccessIterator first, RandomAccessIterator last); template<class RandomAccessIterator, class Compare> constexpr bool is_heap(RandomAccessIterator first, RandomAccessIterator last, Compare comp); template<class ExecutionPolicy, class RandomAccessIterator> bool is_heap(ExecutionPolicy&& exec, RandomAccessIterator first, RandomAccessIterator last); template<class ExecutionPolicy, class RandomAccessIterator, class Compare> bool is_heap(ExecutionPolicy&& exec, RandomAccessIterator first, RandomAccessIterator last, Compare comp); namespace ranges { template<random_access_iterator I, sentinel_for<I> S, class Proj = identity, indirect_strict_weak_order<projected<I, Proj>> Comp = ranges::less> constexpr bool is_heap(I first, S last, Comp comp = {}, Proj proj = {}); template<random_access_range R, class Proj = identity, indirect_strict_weak_order<projected<iterator_t<R>, Proj>> Comp = ranges::less> constexpr bool is_heap(R&& r, Comp comp = {}, Proj proj = {}); } template<class RandomAccessIterator> constexpr RandomAccessIterator is_heap_until(RandomAccessIterator first, RandomAccessIterator last); template<class RandomAccessIterator, class Compare> constexpr RandomAccessIterator is_heap_until(RandomAccessIterator first, RandomAccessIterator last, Compare comp); template<class ExecutionPolicy, class RandomAccessIterator> RandomAccessIterator is_heap_until(ExecutionPolicy&& exec, RandomAccessIterator first, RandomAccessIterator last); template<class ExecutionPolicy, class RandomAccessIterator, class Compare> RandomAccessIterator is_heap_until(ExecutionPolicy&& exec, RandomAccessIterator first, RandomAccessIterator last, Compare comp); namespace ranges { template<random_access_iterator I, sentinel_for<I> S, class Proj = identity, indirect_strict_weak_order<projected<I, Proj>> Comp = ranges::less> constexpr I is_heap_until(I first, S last, Comp comp = {}, Proj proj = {}); template<random_access_range R, class Proj = identity, indirect_strict_weak_order<projected<iterator_t<R>, Proj>> Comp = ranges::less> constexpr borrowed_iterator_t<R> is_heap_until(R&& r, Comp comp = {}, Proj proj = {}); } // [alg.min.max], minimum and maximum template<class T> constexpr const T& min(const T& a, const T& b); template<class T, class Compare> constexpr const T& min(const T& a, const T& b, Compare comp); template<class T> constexpr T min(initializer_list<T> t); template<class T, class Compare> constexpr T min(initializer_list<T> t, Compare comp); namespace ranges { template<class T, class Proj = identity, indirect_strict_weak_order<projected<const T*, Proj>> Comp = ranges::less> constexpr const T& min(const T& a, const T& b, Comp comp = {}, Proj proj = {}); template<copyable T, class Proj = identity, indirect_strict_weak_order<projected<const T*, Proj>> Comp = ranges::less> constexpr T min(initializer_list<T> r, Comp comp = {}, Proj proj = {}); template<input_range R, class Proj = identity, indirect_strict_weak_order<projected<iterator_t<R>, Proj>> Comp = ranges::less> requires indirectly_copyable_storable<iterator_t<R>, range_value_t<R>*> constexpr range_value_t<R> min(R&& r, Comp comp = {}, Proj proj = {}); } template<class T> constexpr const T& max(const T& a, const T& b); template<class T, class Compare> constexpr const T& max(const T& a, const T& b, Compare comp); template<class T> constexpr T max(initializer_list<T> t); template<class T, class Compare> constexpr T max(initializer_list<T> t, Compare comp); namespace ranges { template<class T, class Proj = identity, indirect_strict_weak_order<projected<const T*, Proj>> Comp = ranges::less> constexpr const T& max(const T& a, const T& b, Comp comp = {}, Proj proj = {}); template<copyable T, class Proj = identity, indirect_strict_weak_order<projected<const T*, Proj>> Comp = ranges::less> constexpr T max(initializer_list<T> r, Comp comp = {}, Proj proj = {}); template<input_range R, class Proj = identity, indirect_strict_weak_order<projected<iterator_t<R>, Proj>> Comp = ranges::less> requires indirectly_copyable_storable<iterator_t<R>, range_value_t<R>*> constexpr range_value_t<R> max(R&& r, Comp comp = {}, Proj proj = {}); } template<class T> constexpr pair<const T&, const T&> minmax(const T& a, const T& b); template<class T, class Compare> constexpr pair<const T&, const T&> minmax(const T& a, const T& b, Compare comp); template<class T> constexpr pair<T, T> minmax(initializer_list<T> t); template<class T, class Compare> constexpr pair<T, T> minmax(initializer_list<T> t, Compare comp); namespace ranges { template<class T> using minmax_result = min_max_result<T>; template<class T, class Proj = identity, indirect_strict_weak_order<projected<const T*, Proj>> Comp = ranges::less> constexpr minmax_result<const T&> minmax(const T& a, const T& b, Comp comp = {}, Proj proj = {}); template<copyable T, class Proj = identity, indirect_strict_weak_order<projected<const T*, Proj>> Comp = ranges::less> constexpr minmax_result<T> minmax(initializer_list<T> r, Comp comp = {}, Proj proj = {}); template<input_range R, class Proj = identity, indirect_strict_weak_order<projected<iterator_t<R>, Proj>> Comp = ranges::less> requires indirectly_copyable_storable<iterator_t<R>, range_value_t<R>*> constexpr minmax_result<range_value_t<R>> minmax(R&& r, Comp comp = {}, Proj proj = {}); } template<class ForwardIterator> constexpr ForwardIterator min_element(ForwardIterator first, ForwardIterator last); template<class ForwardIterator, class Compare> constexpr ForwardIterator min_element(ForwardIterator first, ForwardIterator last, Compare comp); template<class ExecutionPolicy, class ForwardIterator> ForwardIterator min_element(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last); template<class ExecutionPolicy, class ForwardIterator, class Compare> ForwardIterator min_element(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, Compare comp); namespace ranges { template<forward_iterator I, sentinel_for<I> S, class Proj = identity, indirect_strict_weak_order<projected<I, Proj>> Comp = ranges::less> constexpr I min_element(I first, S last, Comp comp = {}, Proj proj = {}); template<forward_range R, class Proj = identity, indirect_strict_weak_order<projected<iterator_t<R>, Proj>> Comp = ranges::less> constexpr borrowed_iterator_t<R> min_element(R&& r, Comp comp = {}, Proj proj = {}); } template<class ForwardIterator> constexpr ForwardIterator max_element(ForwardIterator first, ForwardIterator last); template<class ForwardIterator, class Compare> constexpr ForwardIterator max_element(ForwardIterator first, ForwardIterator last, Compare comp); template<class ExecutionPolicy, class ForwardIterator> ForwardIterator max_element(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last); template<class ExecutionPolicy, class ForwardIterator, class Compare> ForwardIterator max_element(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, Compare comp); namespace ranges { template<forward_iterator I, sentinel_for<I> S, class Proj = identity, indirect_strict_weak_order<projected<I, Proj>> Comp = ranges::less> constexpr I max_element(I first, S last, Comp comp = {}, Proj proj = {}); template<forward_range R, class Proj = identity, indirect_strict_weak_order<projected<iterator_t<R>, Proj>> Comp = ranges::less> constexpr borrowed_iterator_t<R> max_element(R&& r, Comp comp = {}, Proj proj = {}); } template<class ForwardIterator> constexpr pair<ForwardIterator, ForwardIterator> minmax_element(ForwardIterator first, ForwardIterator last); template<class ForwardIterator, class Compare> constexpr pair<ForwardIterator, ForwardIterator> minmax_element(ForwardIterator first, ForwardIterator last, Compare comp); template<class ExecutionPolicy, class ForwardIterator> pair<ForwardIterator, ForwardIterator> minmax_element(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last); template<class ExecutionPolicy, class ForwardIterator, class Compare> pair<ForwardIterator, ForwardIterator> minmax_element(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, Compare comp); namespace ranges { template<class I> using minmax_element_result = min_max_result<I>; template<forward_iterator I, sentinel_for<I> S, class Proj = identity, indirect_strict_weak_order<projected<I, Proj>> Comp = ranges::less> constexpr minmax_element_result<I> minmax_element(I first, S last, Comp comp = {}, Proj proj = {}); template<forward_range R, class Proj = identity, indirect_strict_weak_order<projected<iterator_t<R>, Proj>> Comp = ranges::less> constexpr minmax_element_result<borrowed_iterator_t<R>> minmax_element(R&& r, Comp comp = {}, Proj proj = {}); } // [alg.clamp], bounded value template<class T> constexpr const T& clamp(const T& v, const T& lo, const T& hi); template<class T, class Compare> constexpr const T& clamp(const T& v, const T& lo, const T& hi, Compare comp); namespace ranges { template<class T, class Proj = identity, indirect_strict_weak_order<projected<const T*, Proj>> Comp = ranges::less> constexpr const T& clamp(const T& v, const T& lo, const T& hi, Comp comp = {}, Proj proj = {}); } // [alg.lex.comparison], lexicographical comparison template<class InputIterator1, class InputIterator2> constexpr bool lexicographical_compare(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2); template<class InputIterator1, class InputIterator2, class Compare> constexpr bool lexicographical_compare(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2, Compare comp); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2> bool lexicographical_compare(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2); template<class ExecutionPolicy, class ForwardIterator1, class ForwardIterator2, class Compare> bool lexicographical_compare(ExecutionPolicy&& exec, ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, Compare comp); namespace ranges { template<input_iterator I1, sentinel_for<I1> S1, input_iterator I2, sentinel_for<I2> S2, class Proj1 = identity, class Proj2 = identity, indirect_strict_weak_order<projected<I1, Proj1>, projected<I2, Proj2>> Comp = ranges::less> constexpr bool lexicographical_compare(I1 first1, S1 last1, I2 first2, S2 last2, Comp comp = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); template<input_range R1, input_range R2, class Proj1 = identity, class Proj2 = identity, indirect_strict_weak_order<projected<iterator_t<R1>, Proj1>, projected<iterator_t<R2>, Proj2>> Comp = ranges::less> constexpr bool lexicographical_compare(R1&& r1, R2&& r2, Comp comp = {}, Proj1 proj1 = {}, Proj2 proj2 = {}); } // [alg.three.way], three-way comparison algorithms template<class InputIterator1, class InputIterator2, class Cmp> constexpr auto lexicographical_compare_three_way(InputIterator1 b1, InputIterator1 e1, InputIterator2 b2, InputIterator2 e2, Cmp comp) -> decltype(comp(*b1, *b2)); template<class InputIterator1, class InputIterator2> constexpr auto lexicographical_compare_three_way(InputIterator1 b1, InputIterator1 e1, InputIterator2 b2, InputIterator2 e2); // [alg.permutation.generators], permutations template<class BidirectionalIterator> constexpr bool next_permutation(BidirectionalIterator first, BidirectionalIterator last); template<class BidirectionalIterator, class Compare> constexpr bool next_permutation(BidirectionalIterator first, BidirectionalIterator last, Compare comp); namespace ranges { template<class I> using next_permutation_result = in_found_result<I>; template<bidirectional_iterator I, sentinel_for<I> S, class Comp = ranges::less, class Proj = identity> requires sortable<I, Comp, Proj> constexpr next_permutation_result<I> next_permutation(I first, S last, Comp comp = {}, Proj proj = {}); template<bidirectional_range R, class Comp = ranges::less, class Proj = identity> requires sortable<iterator_t<R>, Comp, Proj> constexpr next_permutation_result<borrowed_iterator_t<R>> next_permutation(R&& r, Comp comp = {}, Proj proj = {}); } template<class BidirectionalIterator> constexpr bool prev_permutation(BidirectionalIterator first, BidirectionalIterator last); template<class BidirectionalIterator, class Compare> constexpr bool prev_permutation(BidirectionalIterator first, BidirectionalIterator last, Compare comp); namespace ranges { template<class I> using prev_permutation_result = in_found_result<I>; template<bidirectional_iterator I, sentinel_for<I> S, class Comp = ranges::less, class Proj = identity> requires sortable<I, Comp, Proj> constexpr prev_permutation_result<I> prev_permutation(I first, S last, Comp comp = {}, Proj proj = {}); template<bidirectional_range R, class Comp = ranges::less, class Proj = identity> requires sortable<iterator_t<R>, Comp, Proj> constexpr prev_permutation_result<borrowed_iterator_t<R>> prev_permutation(R&& r, Comp comp = {}, Proj proj = {}); } }