minix-1.7/fs/usr/src/commands/ash/input.c
/*
 * Undo the last call to pgetc.  Only one character may be pushed back.
 * PEOF may be pushed back.
 */
Undo the last call to pgetc.  Only one character may be pushed back.
PEOF may be pushed back.
Undo the last call to pgetc . Only one character may be pushed back . PEOF may be pushed back .
void
pungetc() {
	parsenleft++;
	parsenextc--;
}
void pungetc ( ) { parsenleft ++ ; parsenextc -- ; }
Undo the last call to pgetc.
Undo the last call to pgetc .