How to create a template function within a class? (C++)

user98188 picture user98188 · Jun 9, 2009 · Viewed 164.8k times · Source

I know it's possible to make a template function:

template<typename T>
void DoSomeThing(T x){}

and it's possible to make a template class:

template<typename T>
class Object
{
public:
    int x;
};

but is it possible to make a class not within a template, and then make a function in that class a template? Ie:

//I have no idea if this is right, this is just how I think it would look
class Object
{
public:
    template<class T>
    void DoX(){}
};

or something to the extent, where the class is not part of a template, but the function is?

Answer

Not Sure picture Not Sure · Jun 9, 2009

Your guess is the correct one. The only thing you have to remember is that the member function template definition (in addition to the declaration) should be in the header file, not the cpp, though it does not have to be in the body of the class declaration itself.