llvm-project/libcxx/test/containers/associative/multiset/size.pass.cpp

37 lines
864 B
C++

//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <set>
// class multiset
// size_type size() const;
#include <set>
#include <cassert>
int main()
{
typedef std::multiset<int> M;
M m;
assert(m.size() == 0);
m.insert(M::value_type(2));
assert(m.size() == 1);
m.insert(M::value_type(1));
assert(m.size() == 2);
m.insert(M::value_type(2));
assert(m.size() == 3);
m.erase(m.begin());
assert(m.size() == 2);
m.erase(m.begin());
assert(m.size() == 1);
m.erase(m.begin());
assert(m.size() == 0);
}