Which is why I used it in my response.

Brian

-----Original Message-----
From: u2-users-boun...@listserver.u2ug.org
[mailto:u2-users-boun...@listserver.u2ug.org] On Behalf Of Ed Clark
Sent: 01 August 2013 17:10
To: U2 Users List
Subject: Re: [U2] What is true

on universe, it looks like only fileinfo(var,0) will let you test.
fileinfo(var,1) etc will abort complaining that var isn't a file variable

On Aug 1, 2013, at 9:52 AM, "Martin Phillips"
<martinphill...@ladybridge.com> wrote:

>> on universe (not sure of unidata), you can use FILEINFO() to see if
something is a file variable:
>> 
>> x=""
>> crt fileinfo(x,0)
>> 
>> returns 0. Would return 1 for an open file.
> 
> This originated in Prime Information and is available on UniVerse,
UniData, PI/open, QM, and probably a few others.
> 
> 
> Martin Phillips
> Ladybridge Systems Ltd
> 17b Coldstream Lane, Hardingstone, Northampton NN4 6DB, England
> +44 (0)1604-709200
> 
> 
> 
> 
> _______________________________________________
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