Re: auto_sequence (was auto_vector)

From: rogeeff (rogeeff_at_[hidden])
Date: 2002-02-23 19:05:37

--- In boost_at_y..., "Mark Rodgers" <mark.rodgers_at_c...> wrote:
> ----- Original Message ----- 
> > Why did you choose private inheritance? Why not public abd 
eliminate 
> > all forwarding function?
> 
> Three reasons:
> 
> 1. I don't want the implicit conversion to the base.

What wrong with that? Other than item 3? I would consider this as a 
useful feature allowing to pass container in old function expecting 
regular container.

> 2. Sometimes the function needs to be more than a simple forward.  
Then
>    I don't want to "override" (i.e. hide) a non-virtual.

What wrong with that? You are doing that already. but with private 
parent.

> 3. The base probably won't have a virtual destructor and so I want 
to 
>    avoid deletions through a base pointer.

I would not say that it is more dangerous that s[0] = new T, but you 
agreed to live with that.

> 
> Mark

There are al least 2 significant(?) drawbacks with private 
inheritance:
1. Need to forward all the functions
Now it's about 70-80 persent of all function you implemented.
2. Can't use custom function.
Since you forward only some functions you can't use any custom 
function presented by base contaner. For example map::find, or any 
custom function in my custom container.

Gennadiy.