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From: rwgk (rwgk_at_[hidden])
Date: 2002-02-06 13:39:39

--- In boost_at_y..., Beman Dawes <bdawes_at_a...> wrote:
> Andrei's argument for a single policy based vector rather than
> vector classes is a powerful one. Actually seeing a proposal for
> those policies might achieve would make it easier to form a final
> opinion. Policies that no one ever uses just get in the way. But
> that are really useful become a killer argument, IMO.

What are the fundamental differences between policy based
implementations and implementations of separate types?

From the user's perspective, I find it much more convenient
to refer to std::vector<T> and fix_cap_vector<T> rather than
generic_type<T, something_else>. To me the choice of
policy-based vs. other approaches seems to be an implementation
detail that should be hidden from the user.
Unfortunately, ISO C++ does not seem to provide the means
to achieve this for policy-based types (see


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