default argument for template parameter for class enclosing

Question

code:

template  >
class stack
{
    public:
        stack() {}
        temp         


        

Answer 1

You attempt to provide a default argument for the second template parameter to stack twice. Default template arguments, just like default function arguments, may only be defined once (per translation unit); not even repeating the exact same definition is allowed.

Just type the default argument at the beginning where you define the class template. After that, leave it out:

template
bool stack::empty(){
    return container.empty();
}