Date: Tue, 30 Aug 94 19:22:07 CDT
From: "Cave Newt" <roe2 AT midway DOT uchicago DOT edu>
To: mfeldman AT seas DOT gwu DOT edu
Subject: Re:  A couple of questions from a new DJGPP user
Cc: djgpp AT sun DOT soe DOT clarkson DOT edu

> I'm preparing a C course, and am trying to get the stuff in the text
> to be as portable as possible, since the students have several compilers
> available.

> (1) I'm trying to compile a program out of a book that uses "getch".

getch() is not portable.  Either don't use it (easiest) or else look
at the password code in ftp.uu.net:/pub/archiving/zip/zcrypt23.zip for
an example of how to do something similar "portably."  (I use quotes
because it boils down to writing a separate routine for almost every 
OS...)  Unix has two or three different ways, depending on the version
(stty/gtty, termio, possibly termios).

> (2) Just for curiosity, where is getch, etc., in standard (Unix) gcc?
>     The linker can't find it there either.

getch() is a DOSism.

Greg Roelofs