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| // map::clear #include <iostream> #include <map> int main () { std::map<char,int> mymap; mymap['x']=100; mymap['y']=200; mymap['z']=300; std::cout << "mymap contains:\n"; for (std::map<char,int>::iterator it=mymap.begin(); it!=mymap.end(); ++it) std::cout << it->first << " => " << it->second << '\n'; mymap.clear(); mymap['a']=1101; mymap['b']=2202; std::cout << "mymap contains:\n"; for (std::map<char,int>::iterator it=mymap.begin(); it!=mymap.end(); ++it) std::cout << it->first << " => " << it->second << '\n'; return 0; }
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