On Dec 28, 2003, at 3:49 PM, David Rush wrote:

> Combinators:
>
> Where is vector-fold/index??? All of the vector combinators should
> have /index versions. My vector library (predating srfi-43) does this
> because I frequently found myself in the position of needing it.
> Having O(1) access is the whole point of using vectors, it seems silly
> to prevent people from being able to cross-reference that access.

Oops.  That's an oversight.  I'll add it, and VECTOR-FOLD-RIGHT/INDEX,
too.

> Mutators:
>
> I think that vector-insert!, vector-delete!,and vector-rotate! are bad
> enough ideas to leave out. If you're going to be using these
> operations enough to notice that you don't have them, you probably
> shouldn't be using vectors to implement your collection in the first
> place. Differring opinions on this subject *are* appreciated, but the
> computational overhead to these operations is foolish to use unless it
> constitutes part of the constant overhead of an algorithm (which is
> pretty bloody unlikely).

OK.  Sergei Egorov hasn't spoken up about them, so, if he doesn't
respond soon
to a personal email to him that I shall write right now, I'll boot 'em
out.

> david rush
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