Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!sharkey!cfctech!ttardis!rlw
From: rlw@ttardis.UUCP (Ron Wilson)
Newsgroups: comp.sys.apple
Subject: Re: HyperC
Message-ID: <2470@ttardis.UUCP>
Date: 12 Feb 90 18:12:16 GMT
Organization: Gallifrey
Lines: 24

In article <PNAKADA.90Feb11160145@pnakada.oracle.com>, pnakada@oracle.com (Paul Nakada) writes:
>In article <14121@reed.UUCP> reeder@reed.UUCP (Doug Reeder) writes:
>
>   Since EOF is not defined, even in std.h, how do you detect the end of
>   files?
>
>[ 
>  EOF can be either -1 or 255.  Here are some hypotheses.  the
>  getchr() function returns a signed char in which case you want to
>  compare its result with -1.  When i tried to assign getchr() to a
>  char and then check, I had to compare with 255.  So, I guess that
>  the default char is an unsigned char.  I have yet to try, but I bet
>  that assigning getchr() to a signed char will alleviate the problem.
>
>  So.  EOF = -1 and getchr returns  signed char.
>]
Actually, getchr (should be getchar) PROBABLY returns an integer - this
is the way it is defined on MOST Un*x C compilers and also MS, Lattice,
and Aztec C compilers for MS-DOS.

As I recall, Aztec C for the Apple ][ also defines getchar as returning
an integer.

- Ron Wilson