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Date: 2002-07-16 (20:22)
From: John Max Skaller <skaller@o...>
Subject: [Caml-list] Re: Statically detecting arrays bound exceptions ?? (was: Universal Serializer)
Berke Durak wrote:

>On Fri, Jul 12, 2002 at 10:41:35PM +1000, John Max Skaller wrote:
>>Ocaml run time errors include array (and string) bounds exceptions and 
>>infinite recursions:
>>static type checking could detect the first, but not the second.
>Hey, wait a minute, how do you plan to statically detect bounds exceptions ?
>It's as undecidable as detecting infinite recursions.
Nah. Just depends on your mindset.
In Pascal, array indexes have a specific type,
(possibly a subrange type). So it isn't possible to
get an array bounds error, only a type error
if the index is the wrong type.

John Max Skaller,
snail:10/1 Toxteth Rd, Glebe, NSW 2037, Australia.

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