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Subject: Re: [boost] Interest in a "Heterogenous Container" system?
From: Ross Levine (ross.levine_at_[hidden])
Date: 2009-06-29 18:40:59

On Mon, Jun 29, 2009 at 6:12 PM, Christian Schladetsch <
christian.schladetsch_at_[hidden]> wrote:

> The issue of which allocator to use is quite important to some people,
> especially in embedded and/or high-performance situations. Sliding in a
> heap
> allocation somewhere in a container which has an allocator is a big no-no.
> ptr_container does it as well when making temporary arrays and for clones.

High-performance/embedded situations are probably not going to need
heterogeneous storage. Moreover, not only does deriving from common_base
suddenly make a class polymorphic, which adds a vptr, and thus extra size,
to every class instance, but your code uses dynamic_cast which requires
RTTI, which is typically disabled in these environments to reduce overhead.

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