Question

I have the following code:

template <typename A, typename B>
struct TheStruct {
    A a;
    B b;
};

class TheClass {
public:
    void do_something(TheStruct<A,B> blah);
}

I get compiler errors on the do_somethng method that resembles error: 'A' was not declared in this scope…

What is the correct syntax for defining this kind of type in a method parameter?

Thanks!

Answer 1

You’ll need to either make TheClass a template:

template <typename A, typename B>
class TheClass {
public:
    void do_something(TheStruct<A,B> blah);
};

Or you’ll need to make do_something() a template:

class TheClass {
public:
    template <typename A, typename B>
    void do_something(TheStruct<A,B> blah);
};