cplus

#include <iostream>
    #include <ios>
    #include <istream>
    #include <limits>
    using namespace std;
    template <typename CharT>
    void ignore_line ( basic_istream<CharT>& in )
    {
        in.ignore ( numeric_limits<streamsize> :: max(), in.widen ( '\n' ) );
    }
    int main()
    {
        cout << "First input: ";
        cin.get();
        cout << "Clearing cin.\n";
        cin.clear();
        ignore_line ( cin );
        cout << "All done.\n";
    }