Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!helios!bcm!dimacs.rutgers.edu!rutgers!zodiac!tsommers
From: tsommers@zodiac.rutgers.edu
Newsgroups: comp.lang.icon
Subject: Re: MSDOS V8 reads
Message-ID: <201.273ee591@zodiac.rutgers.edu>
Date: 12 Nov 90 18:10:25 GMT
References: <9011100110.AA00524@megaron.cs.arizona.edu>
Distribution: inet
Organization: Rutgers University - Computing Services
Lines: 23

In article <9011100110.AA00524@megaron.cs.arizona.edu>, pax@pax7300.att.com writes:
> Is it possible that Version 8 of Icon on MS-DOS will not read past
> an octal 32 with reads???
> 
> 	procedure main()
> 		fd := open("TESTOFF.DBF","ru") | stop("DBF open failed")
> 		while line := reads(fd,32) do {
> 		      write("*line=",*line)
> 		}
> 	end
> 
> TESTOFF.DBF happens to have an octal 032 in position 49 of the file.
> 
> The above program on MS-DOS returns:
> 
> *line=32
> *line-16

My guess would be that Icon is opening the file in text mode, and that
the particular C compiler used to make Icon treats Control-Z as EOF in
text mode. If Icon just passes the mode string unaltered to the C fopen
(or whatever), then perhaps all that is required is to use the
appropriate binary mode mode string when opening the file.