Andy Wingo scripsit:

> Why not specify `close-port' instead of `close-input-port' and
> `close-output-port' ? Is there any benefit that having two procedures
> when one would do, except compatibility?  (Because if it's simply for
> compatibility, one can provide shims.)

Scheme isn't big on generic procedures, which is why we have length and
vector-length and string-length and blob-length.  Genericity is a Good
Thing, but just a little bit of it doesn't buy you much.  We did add
`port?`, but that's because it was mentioned in section 2.3 but not in
section 6, leading to substantial uncertainty and differences between
implementations.

--
I marvel at the creature: so secret and         John Cowan
so sly as he is, to come sporting in the pool   cowan@ccil.org
before our very window.  Does he think that     http://www.ccil.org/~cowan
Men sleep without watch all night?

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