How to define a default parameter of Vector2f ? [SFML]

Question

I have some function func in a class Class:

 void func(int arg1, int arg2, Vector2f vec = Vector2f(0,0)){};

And I get a build error:

error C2572: 'Classs::func': redefinition of default argument: parameter 1

I tried many different synataxes but none worked. How can I define a default parameter of this type?

score 4 · Accepted Answer · answered Jun 01 '20 at 14:12

Specify the default parameter in the prototype only. Don't repeat this in the function definition.

// prototype
void func(int arg1, int arg2, Vector2f vec = Vector2f(0,0));

// definition
void func(int arg1, int arg2, Vector2f vec)
{
    ...
}

This advice applies to any default parameter. It's got nothing to do with the type.

1 Answers1