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RE: [Caml-list] Semantics of physical equality
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Date: 2004-02-28 (01:00)
From: Michal Moskal <malekith@p...>
Subject: Re: [Caml-list] Semantics of physical equality
On Fri, Feb 27, 2004 at 05:16:06PM -0600, Kevin S. Millikin wrote:
> In the current problem, it can save me a great
> deal of effort involved in generating temporary identifiers that are
> guaranteed to be unique, and in wrapping library data structures that I
> am unwilling to change in order merely to tag them.

type t = V of int ref

let t1 = V (ref 0)
let t2 = V (ref 0)

In this case you can assume t1 != t2. If it is not a sum type, but
record type, you can use record with at least one mutable field.

: Michal Moskal :: :: GCS !tv h e>+++ b++
: When in doubt, use brute force. -- Ken Thompson :: UL++++$ C++ E--- a?

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