- //文件名:CHAPTER9-22.cpp
- #include <set>
- #include <iostream>
- #if _MSC_VER > 1020 // if VC++ version is > 4.2
- using namespace std; // std c++ libs implemented in std
- #endif
- int main( )
- {
- multiset <int> ms1;
- ms1.insert( 1 );
- ms1.insert( 2 );
- cout << "The size of the multiset is initially "<< ms1.size( ) << "." << endl;
- ms1.clear( );
- cout << "The size of the multiset after clearing is "<< ms1.size( ) << "." << endl;
- }