🚀 go-pugleaf

In article <DAVIS.92Aug6120347@pacific.mps.ohio-state.edu> davis@pacific.mps.ohio-state.edu  (John E. Davis) writes:
>In article <l82ffaINNc9j@utkcs2.cs.utk.edu> tackett@cs.utk.edu (Jack Tackett) writes:
>   >try fflush(stdin);
>
>
>I am skeptical about this solution.  Instead try something like:
>
>                   while(bioskey(1)) if (!getch()) getch();
>
>   

Jack is correct to be skeptical about fflush(stdin)! It is NOT advisable to
use the fflush() function with input streams such as stdin.

WHY??

According to the ANSI standard, fflush() is only guaranteed to work on OUTPUT
streams and *not* input streams. To do so on input streams is what is known
in standards terms as "undefined behavior". What this means is that fflush()
is guaranteed to work on output streams but if you use it on input streams,
you can't rely on it working the same for every compiler!

Many compilers allow the fflush to work with stdin, but it really isn't the
place to do it :-)

So what to do??

There are many ways, the simplist being that you must read all characters until
it is empty.

Regards,

/David

-- 
-------------------------------------------------------
David AR Anderson   Email: anderson@Software.Mitel.COM
Software Tools and Integration
Mitel Corporation   Disclaimer: My opinions are my own!