//===----------------------------------------------------------------------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// // UNSUPPORTED: c++98, c++03 // <set> // class multiset // template <class... Args> // iterator emplace(Args&&... args); #include <set> #include <cassert> #include "test_macros.h" #include "../../Emplaceable.h" #include "DefaultOnly.h" #include "min_allocator.h" int main(int, char**) { { typedef std::multiset<DefaultOnly> M; typedef M::iterator R; M m; assert(DefaultOnly::count == 0); R r = m.emplace(); assert(r == m.begin()); assert(m.size() == 1); assert(*m.begin() == DefaultOnly()); assert(DefaultOnly::count == 1); r = m.emplace(); assert(r == next(m.begin())); assert(m.size() == 2); assert(*m.begin() == DefaultOnly()); assert(DefaultOnly::count == 2); } assert(DefaultOnly::count == 0); { typedef std::multiset<Emplaceable> M; typedef M::iterator R; M m; R r = m.emplace(); assert(r == m.begin()); assert(m.size() == 1); assert(*m.begin() == Emplaceable()); r = m.emplace(2, 3.5); assert(r == next(m.begin())); assert(m.size() == 2); assert(*r == Emplaceable(2, 3.5)); r = m.emplace(2, 3.5); assert(r == next(m.begin(), 2)); assert(m.size() == 3); assert(*r == Emplaceable(2, 3.5)); } { typedef std::multiset<int> M; typedef M::iterator R; M m; R r = m.emplace(M::value_type(2)); assert(r == m.begin()); assert(m.size() == 1); assert(*r == 2); } { typedef std::multiset<int, std::less<int>, min_allocator<int>> M; typedef M::iterator R; M m; R r = m.emplace(M::value_type(2)); assert(r == m.begin()); assert(m.size() == 1); assert(*r == 2); } return 0; }