Why include a header and forward declare the class contained in the same cpp file?

Question

I\'ve been looking at the Fear SDK for my university project, but have noticed some code like so:

Foo.h

class Foo
{
    public:
        int iSomethin         


        

Answer 1

The forward declaration is redundant, but also quite harmless. Maybe the author uses a lot of forward declarations, and doesn't rigorously ensure they are always required.