[boost] Re: ClonePtr and CopyPtr take 2

From: Andrew D Jewell (ajewell_at_[hidden])
Date: 2000-03-13 09:53:15

>   deep_opaque_ptr    // also known as CopyPtr
>   deep_ptr
>   shared_opaque_ptr
>   shared_ptr         // same as current
>   scoped_opaque_ptr
>   scoped_ptr         // same as current

If I may be so bold, I would like to suggest adding "Qualified" bit, 
and doubling the number of types. By "Qualified", I mean passing 
through the constness, such that a "const shared_ptr" dereferences to 
a pointer to a const object. I have found my own hastily-assembled 
const_scoped_ptr to be quite helpful. In fact, I have yet to find a 
need (in my own code) for the non-qualified version.

       T * operator -> ()       throw() { return p; }
const T * operator -> () const throw() { return p; }

While I'm on my soap box, I would like to strongly agree with the 
LACK of "array" options like shared_array. The same effect can be 
much more clearly and safely achieved with shared_ptr< vector<> > or 
some such.

so I would see the list as

deep_ptr
deep_opaque_ptr
deep_qualified_ptr
deep_opaque_qualified_ptr
shared_ptr
shared_opaque_ptr
shared_qualified_ptr
shared_opaque_qualified_ptr
scoped_ptr
scoped_opaque_ptr
scoped_qualified_ptr
scoped_opaque_qualified_ptr

Andy Jewell