Path: utzoo!attcan!uunet!lll-winken!lll-tis!ames!pasteur!ucbvax!decwrl!pyramid!prls!philabs!pwa-b!mmintl!franka
From: franka@mmintl.UUCP (Frank Adams)
Newsgroups: comp.misc
Subject: Re: Programming style with arrays, enquiry
Keywords: programming style, arrays
Message-ID: <2853@mmintl.UUCP>
Date: 17 May 88 14:52:54 GMT
References: <724@dick.cs.vu.nl>
Reply-To: franka@mmintl.UUCP (Frank Adams)
Organization: Ashton-Tate Corporation, East Hartford Development Center
Lines: 15

In article <724@dick.cs.vu.nl> dick@cs.vu.nl (Dick Grune) writes:
>1.  Address of first item and length.
>This is clean and can handle zero-length arrays.  It gives, however, rise to
>incessant additions, since one wants the upper limit much more often than the
>length:
>	if (p >= array + length)  error();

Note that this is a function of the programming language in use.  In C,
where arrays are most often referenced by explicit pointer arithmetic, this
is true.  But in most programming languages, arrays are referenced by
indexing (as, indeed, they can be in C).  And, in this case, the length is
exactly what you need.
-- 

Frank Adams                           ihnp4!philabs!pwa-b!mmintl!franka
Ashton-Tate          52 Oakland Ave North         E. Hartford, CT 06108