Path: utzoo!utgpu!attcan!uunet!husc6!bloom-beacon!bu-cs!dartvax!eleazar.dartmouth.edu!yaping
From: yaping@eleazar.dartmouth.edu (Yaping Xu)
Newsgroups: comp.lang.c
Subject: Re: getch() and getche() in MSC 4.0
Summary: Thanks!
Keywords: *##%@^!&ing functions!
Message-ID: <10523@dartvax.Dartmouth.EDU>
Date: 21 Oct 88 13:53:38 GMT
References: <10508@dartvax.Dartmouth.EDU>
Sender: news@dartvax.Dartmouth.EDU
Reply-To: jalphin@prism.clemson.edu
Organization: Yale University
Lines: 20


	[This article was written by Scott Horne, not Yaping Xu.
	Direct all e-mail responses to me at jalphin@prism.clemson.edu.]

Several people have answered my question about getch() & getche() in MSC.
I didn't know that `toupper' was a macro, which it is:

#	define	 toupper(c)	( (islower(c)) ? _toupper(c) : (c) )

which caused the problem:  "toupper(getch())" would evaluate to

	((islower(getch()) ? _toupper(getch()) : getch())

and islower() would be expanded, and so would _toupper() be.  Thus getch()
is called at least twice.

Thanks for pointing out my stupid mistake--and please stop filling my mailbox
with responses!  :-)

				--Scott