C++ const question

Question

If I do this:

// In header 
class Foo {
void foo(bar*);
};

// In cpp
void Foo::foo(bar* const pBar) {
//Stuff
}

The compiler does not comp

Answer 1

It probably doesn't care much about void Foo::foo(bar* const pBar) because how you treat the pointer itself (const or not) doesn't matter one bit outside of the routine. The C rules say that no change to pBar will travel outside of foo either way.

However, if it is (const bar* pBar), that makes a difference, because it means the compiler is not to allow callers to pass in pointers to non-const objects.