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    class Base
    {
        Base(int i) {}; //Has a constructor therefore does not get a free noargs constructor
    };
 
    class Derived : public Base
    {
    };
 
    int main()
    {
         /*Not actually possible because Derived will get a free noargs constructor
           which will attempt to invoke the non existant no args constructor of Base.
         */
         Derived d; 
 
         return 0;
    }

prog.cpp: In constructor ‘Derived::Derived()’:
prog.cpp:6:11: error: no matching function for call to ‘Base::Base()’
prog.cpp:6:11: note: candidates are:
prog.cpp:3:9: note: Base::Base(int)
prog.cpp:3:9: note:   candidate expects 1 argument, 0 provided
prog.cpp:1:11: note: Base::Base(const Base&)
prog.cpp:1:11: note:   candidate expects 1 argument, 0 provided
prog.cpp: In function ‘int main()’:
prog.cpp:15:18: note: synthesized method ‘Derived::Derived()’ first required here 

Standard output is empty