c++ - recieve object type by argument

Question

I'm trying to pass object type by argument, and i couldn't find any way to do that.

this is what i've tried so far:

I'm trying to do a generic function for multiple classes (int, double etc.)

void changeObject(class this)
{
    static_cast<this&>(object[0][0]).foo()
}

but I couldn't make it work, this is not for HW, but instead a project i'm work on.

Answer 1

The only way to do this is to make changeObject() be a template function, eg:

template<typename T>
void changeObject()
{
    static_cast<T&>(object[0][0]).foo();
}

You can then call it like this:

changeObject<DesiredTypeHere>();