1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
10
11// template<container-compatible-range<value_type> R>
12// set(from_range_t, R&& rg, const Compare& comp = Compare(), const Allocator& = Allocator()); // C++23
13//
14// template<container-compatible-range<value_type> R>
15// set(from_range_t, R&& rg, const Allocator& a))
16// : set(from_range, std::forward<R>(rg), Compare(), a) { } // C++23
17
18#include <array>
19#include <set>
20
21#include "../../from_range_associative_containers.h"
22#include "test_macros.h"
23
24void test_duplicates() {
25 using T = KeyValue;
26
27 std::array input = {T{1, 'a'}, T{2, 'a'}, T{3, 'a'}, T{3, 'b'}, T{3, 'c'}, T{2, 'b'}, T{4, 'a'}};
28 std::array expected = {T{1, 'a'}, T{2, 'b'}, T{3, 'c'}, T{4, 'a'}};
29 auto c = std::set<T>(std::from_range, input);
30 assert(std::ranges::is_permutation(expected, c));
31}
32
33int main(int, char**) {
34 for_all_iterators_and_allocators<int>(f: []<class Iter, class Sent, class Alloc>() {
35 test_associative_set<std::set, int, Iter, Sent, test_less<int>, Alloc>();
36 });
37 test_associative_set_move_only<std::set>();
38 test_duplicates();
39
40 static_assert(test_set_constraints<std::set, int, double>());
41
42 test_set_exception_safety_throwing_copy<std::set>();
43 test_set_exception_safety_throwing_allocator<std::set, int>();
44
45 return 0;
46}
47

source code of libcxx/test/std/containers/associative/set/set.cons/from_range.pass.cpp