Question

I’m very busy write now debugging some code, so I can’t cookup a complete example, but this basically describes my problem

class Base{}; class MyX:public Base {   ... }; class Derived:Base {   ... }; template<class X> class MyClass:Derived { private:    MyClass(const MyClass& )      :x()    {} public:    MyClass(const X& value)     :x(value)    {} };  .... MyX      x; MyClass<MyX>(x); 

This gives me an error like this:

error: there are two possible constrcutors MyClass<X>(const MyClass<X>&) and MyClass<X>(const X&) 

Answer 1

MyClass<MyX>(x); 

is parsed as

MyClass<MyX> x; 

But MyClass<MyX> does not have a default constructor. Try giving it a name:

MyClass<MyX> p(x);