Paul  Moore <[EMAIL PROTECTED]> writes:

> OK, but that allocates the initial buffer, which I will then throw
> away.

Why don't you use a constructor argument that allows specifying the
initial buffer size?

> In practice, this isn't a significant issue (the overhead of one
> allocation and one deallocation isn't going to wreck things!) but it
> feels somehow clumsy. However, I can't see an obvious way to
> refactor the code so that building the object and assigning the
> buffer are separate - so that I can write a function like
> Pattern_init, which allocates a differently sized buffer (well, I
> could, but if I did, I'd have no way of using it that respects
> subclassing...

Another way would be to avoid allocating the buffer at all until it is
actually needed.
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