Re: [boost] polymorphic containers

From: David Abrahams (david.abrahams_at_[hidden])
Date: 2001-11-16 15:08:35

----- Original Message -----
From: "Jeff King" <peff-boost_at_[hidden]>

> On Fri, 16 Nov 2001, ERICSSON,JOHAN (A-Sonoma,ex1) wrote:
>
> > 1. Don't allow the poly_ptr to have a NULL value. This simplifies both
the
> > implementation of poly_ptr and the client significantly. The client no
> > longer has to check for a NULL poly_ptr. If the client needs an optional
>
> I wanted to do that at first, but I also wanted poly_ptr to be default
> constructible for use with standard containers.

What does default-constructibility have to do with the standard containers?

-Dave