Subject: Re: Pretty printing IP addresses
From: Erik Naggum <>
Date: 24 Sep 2002 00:15:38 +0000
Newsgroups: comp.lang.lisp
Message-ID: <>

* Matthew X. Economou
| Aren't (SIMPLE-BIT-VECTOR 32) and (UNSIGNED-BYTE 32) the same thing?

  Not even remotely comparable.

| In any case, I was attempting to build an interface that was "zero copy",
| where the in-memory and on-the-wire (or on-the-filesystem) formats were
| identical.

  You cannot write any integers into bit-vectors other than 0 and 1.  You
  address each individual bit.  It is slow and expensive to turn an integer
  into a bit-vector or vice versa unless you get at the implementation details.

  Something tells me you have no running code at this point.

Erik Naggum, Oslo, Norway

Act from reason, and failure makes you rethink and study harder.
Act from faith, and failure makes you blame someone and push harder.