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From: lowey@sask.UUCP (Kevin Lowey)
Newsgroups: comp.lang.pascal
Subject: Re: TP problem
Message-ID: <936@sask.UUCP>
Date: Sun, 8-Nov-87 23:23:10 EST
Article-I.D.: sask.936
Posted: Sun Nov  8 23:23:10 1987
Date-Received: Thu, 12-Nov-87 06:48:16 EST
References: <16249@topaz.rutgers.edu>
Organization: University of Saskatchewan
Lines: 31
Keywords: ennumerated type error
Summary: The Answer (I think)

In article <16249@topaz.rutgers.edu>, jjoshua@topaz.rutgers.edu (Jonathan Joshua) writes:
> 
> v is a variable with an ennumerated type, right?

     right

> readln(v) ;
> gives an I/O not allowed error. I am using turbo pascal.
> Am I doing something wrong or do I need a REAL compiler?

  As far as I know, PASCAL only accepts input from the console into 
STRING (array of char), integer, or real types.  All other types (arrays, 
records, enumerated types, and any other type you define) can only be written
to and read from files.

  To do what you want, you will have to input a character from the keyboard,
then use a case statement to assign the correct variable to the enumerated
type depending upon the value of the character.

  Internally, the enumerated type is stored as an integer (or some variant 
like BYTE), so you may be able to enter a number from the keyboard, but I 
doubt it.

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