61 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9// <set>10 11// class multiset12 13// size_type size() const;14 15#include <set>16#include <cassert>17 18#include "test_macros.h"19#include "min_allocator.h"20 21int main(int, char**) {22 {23 typedef std::multiset<int> M;24 M m;25 assert(m.size() == 0);26 m.insert(M::value_type(2));27 assert(m.size() == 1);28 m.insert(M::value_type(1));29 assert(m.size() == 2);30 m.insert(M::value_type(2));31 assert(m.size() == 3);32 m.erase(m.begin());33 assert(m.size() == 2);34 m.erase(m.begin());35 assert(m.size() == 1);36 m.erase(m.begin());37 assert(m.size() == 0);38 }39#if TEST_STD_VER >= 1140 {41 typedef std::multiset<int, std::less<int>, min_allocator<int>> M;42 M m;43 assert(m.size() == 0);44 m.insert(M::value_type(2));45 assert(m.size() == 1);46 m.insert(M::value_type(1));47 assert(m.size() == 2);48 m.insert(M::value_type(2));49 assert(m.size() == 3);50 m.erase(m.begin());51 assert(m.size() == 2);52 m.erase(m.begin());53 assert(m.size() == 1);54 m.erase(m.begin());55 assert(m.size() == 0);56 }57#endif58 59 return 0;60}61