llvm-project

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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
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// template<container-compatible-range<value_type> R>
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//   multiset(from_range_t, R&& rg, const Compare& comp = Compare(), const Allocator& = Allocator()); // C++23
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//
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// template<container-compatible-range<value_type> R>
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//   multiset(from_range_t, R&& rg, const Allocator& a))
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//     : multiset(from_range, std::forward<R>(rg), Compare(), a) { } // C++23
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#include <algorithm>
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#include <array>
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#include <set>
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#include "../../from_range_associative_containers.h"
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#include "test_macros.h"
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void test_duplicates() {
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  std::array input = {1, 2, 3, 3, 3, 4, 2, 1, 2};
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  auto c = std::multiset<int>(std::from_range, input);
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  assert(std::ranges::is_permutation(input, c));
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}
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int main(int, char**) {
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  for_all_iterators_and_allocators<int>([]<class Iter, class Sent, class Alloc>() {
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    test_associative_set<std::multiset, int, Iter, Sent, test_less<int>, Alloc>();
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  });
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  test_associative_set_move_only<std::multiset>();
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  test_duplicates();
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  static_assert(test_set_constraints<std::multiset, int, double>());
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  test_set_exception_safety_throwing_copy<std::multiset>();
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  test_set_exception_safety_throwing_allocator<std::multiset, int>();
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  return 0;
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}
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