reactos/sdk/lib/crt/conio/ungetch.c

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/*
* COPYRIGHT: See COPYING in the top level directory
* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details
* PROJECT: ReactOS system libraries
* FILE: lib/sdk/crt/conio/ungetch.c
* PURPOSE: Ungets a character from stdin
* PROGRAMER: DJ Delorie
Ariadne [ Adapted from djgpp libc ]
* UPDATE HISTORY:
* 28/12/98: Created
*/
#include <precomp.h>
int char_avail = 0;
int ungot_char = 0;
/*
* @implemented
*/
int _ungetch(int c)
{
if (char_avail)
return(EOF);
ungot_char = c;
char_avail = 1;
return(c);
}