std::multimap::clear

// multimap::clear
#include <iostream>
#include <map>
int main ()
{
  std::multimap<char,int> mymultimap;
  std::multimap<char,int>::iterator it;
  mymultimap.insert(std::pair<char,int>('b',80));
  mymultimap.insert(std::pair<char,int>('b',120));
  mymultimap.insert(std::pair<char,int>('q',360));
  std::cout << "mymultimap contains:\n";
  for (it=mymultimap.begin(); it!=mymultimap.end(); ++it)
    std::cout << (*it).first << " => " << (*it).second << '\n';
  mymultimap.clear();
  mymultimap.insert(std::pair<char,int>('a',11));
  mymultimap.insert(std::pair<char,int>('x',22));
  std::cout << "mymultimap contains:\n";
  for (it=mymultimap.begin(); it != mymultimap.end(); ++it)
    std::cout << (*it).first << " => " << (*it).second << '\n';
  return 0;
}