cxx/test/containers/associative/multimap/size.pass.cpp

//===----------------------------------------------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

// <map>

// class multimap

// size_type size() const;

#include <map>
#include <cassert>

int main()
{
    typedef std::multimap<int, double> M;
    M m;
    assert(m.size() == 0);
    m.insert(M::value_type(2, 1.5));
    assert(m.size() == 1);
    m.insert(M::value_type(1, 1.5));
    assert(m.size() == 2);
    m.insert(M::value_type(3, 1.5));
    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);
}