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help with relational operators [message #16180]

Thu, 08 July 1999 00:00

dmarshall
Messages: 23
Registered: December 1997

Junior Member

I'm getting near wits end.

repeat begin
...
; get user to input file name
...
dataFName='somefile.xdr'
...
fileCheck=findfile(dataFName)
if fileCheck eq '' then print, 'error: ', dataFName,' file not found'

endrep until fileCheck ne ''

% Expression must be a scalar in this context: <BYTE Array[1]>.

I just want to verify the file exists before opening it.
This gives my error message if file does not exist, but craps out if file
does exist.

help, fileCheck ne ''

tells me it _is_ a scalar expression. ?

I'm using Student Version 5.0 on MSWin95

Dave.

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help with relational operators

By: dmarshall on Thu, 08 July 1999 00:00

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