Thread: How can you tell if the input buffer is empty?

Code:

	if (getch() != EOF)
		getch();

Basically if the buffer is empty, then good, but if it's not then I want to do the getch() (there would only be 1 thing in the buffer so this would work perfectly)

Any ideas?

If you're using VC++: int _kbhit(void); in <conio.h>. It return non-zero if a key was pressed.

Here's an example right from the docs:

Code:

/* KBHIT.C: This program loops until the user
 * presses a key. If _kbhit returns nonzero, a
 * keystroke is waiting in the buffer. The program
 * can call _getch or _getche to get the keystroke.
 */

#include <conio.h>
#include <stdio.h>

void main( void )
{
   /* Display message until key is pressed. */
   while( !_kbhit() )
      _cputs( "Hit me!! " );

   /* Use _getch to throw key away. */
   printf( "\nKey struck was '%c'\n", _getch() );
   _getch();
}