From:	Kevin Ashley <k DOT ashley AT ulcc DOT ac DOT uk>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Getch() in UNIX
Date:	Tue, 12 May 1998 17:30:49 +0100
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Message-ID:	<35587939.41C6@ulcc.ac.uk>
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To:	djgpp AT delorie DOT com
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Dan, Ho-Jin wrote:
> 
> #include <termio.h>
> #include <sys/ioctl.h>
> 
> int getch() {
>    struct termio o, n;
>    char c;
> 
>    ioctl(0, TCGETA, &o);
>    ioctl(0, TCGETA, &n);
....

A minor point, but one that helps portability - most systems that
support
the termio stuff indicate that the function-call interface is preferable
to the ioctl interface. Use tcgetattr, tcsetattr in preference to ioctl.
This has the obvious advantage that it is much easier to re-implement
a function like tcsetattr on another system that doesn't have termio
done
in the device driver than it is to hack ioctl to support extra
attributes.  

------------------------------------------------------------------------------
Kevin Ashley                                       K DOT Ashley AT Ulcc DOT ac DOT uk
Special Projects Manager            
http://www.ulcc.ac.uk/staff/Kevin+Ashley
ULCC                        ...ukc!ncdlab!K.Ashley (but probably not any
more)
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