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From: Vinzent Hoefler <ada.rocks@jlfencey.com>
Newsgroups: comp.lang.ada
Subject: Re: FW: Ada 200X
Date: Tue, 03 Jun 2003 17:16:09 +0200
Organization: JeLlyFish software
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Date: 2003-06-03T17:16:09+02:00
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Erlo Haugen wrote:

>Wouldn't
>subtype day_number is natural range 1..31;
>type month_days is array (day_number) of some_other_type;
>eliminate the boundschecking??

Inside a function that takes a type day_number as parameter to use it
on an array of type month_days, it definitely should.

The bounds checking should occur *before* calling the function with an
out of range parameter then. Quite hard to determine in C when you
only have ints that can mean everything.


Vinzent.