Message-ID: <32E3091F.5450@dmv.com>
Date: Sun, 19 Jan 1997 21:56:47 -0800
From: Pyro Technic <invid AT dmv DOT com>
Reply-To: invid AT dmv DOT com
Organization: Happy 'N Snappy PC Repair
MIME-Version: 1.0
To: mail-list <djgpp AT delorie DOT com>
Subject: Re: getch() and getche()
References: <32E251B8 DOT 1C3E AT dmv DOT com> <32E2ADC2 DOT 1579 AT cs DOT com>
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John M. Aldrich wrote:
> 
> Pyro Technic wrote:
> >
> > i don't no if NE1 else has noticed this but there is a very annoying
> > featire with getch() and getche(). as a newbie i'd much appreciate NE1
> > who could point out how to fix it.
> 
> Under gcc, stdout is line buffered.  It only gets flushed when you print
> a newline or call a stdio input function.  However, getch() and getche()
> are conio functions which interface directly with the BIOS.  The two are
> not directly compatible and will cause problems if you use them
> together.  Please note that this is NOT a bug in djgpp, but a feature of
> ANSI C/C++.  You should never mix stdio and conio functions in portable
> code.
> 
> There are several ways to solve your problem without using a newline:
> 
> 1)  Manually flush stdout after the cout call.
> 
>  cout << "Y for yes or N for No: ";
>  fflush( stdout );
>  answer = getche();
> 
> 2)  Use cprinf (a conio function) instead of cout.
> 
>  cprintf( "Y for yes or N for No: " );
>  answer = getche();
> 
> 3)  Use stdio input functions.
> 
>  cout << "Y for yes or N for No: ";
>  cin >> answer;
> 
> Of course, here you'll have to press Enter to get your key accepted.
> 
> --
> ---------------------------------------------------------------------
> | John M. Aldrich, aka Fighteer I  |        fighteer AT cs DOT com         |
> | Call me for your free AOL disk!  |   http://www.cs.com/fighteer   |
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	tanxs much, U guys R just about the nicest smartest bunch of people i
never met. :>

	Pyro