Re: Mixed public/private derivation?
* Adam Aulick:
Phlip wrote:
Adam Aulick wrote:
struct A { virtual ~A(){} virtual void foo() = 0; };
struct B: virtual A { void foo(){} void boo(){} };
I tried without the using statements (there are a large number of them,
and they are still changing periodically)
Why are there many of them? Why don't you pass around a reference to
A, so
clients of B only see A's interface, with the narrow set of methods in
it.
This is called the Interface Segregation Principle, I think.
I do pass around a reference to A, and clients see what I want them to
see at this point, which is good. What I'm trying to avoid is
nit-picky: having code in C's declaration for each method of A, which
causes maintenance the maintenance overhead of changing C's declaration
every time I add or remove a method in A.
struct C: protected B
{
operator A& () { return *this; }
operator A const& () { return *this; }
};
Perhaps?
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