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- /*
- * Libraries and headers for PDC release 3.3 (C) 1989 Lionel Hummel.
- * PDC Software Distribution (C) 1989 Lionel Hummel and Paul Petersen.
- * PDC I/O Library (C) 1987 by J.A. Lydiatt.
- *
- * This code is freely redistributable upon the conditions that this
- * notice remains intact and that modified versions of this file not
- * be included as part of the PDC Software Distribution without the
- * express consent of the copyright holders. No warrantee of any
- * kind is provided with this code. For further information, contact:
- *
- * PDC Software Distribution Internet: BIX:
- * P.O. Box 4006 or hummel@cs.uiuc.edu lhummel
- * Urbana, IL 61801-8801 petersen@uicsrd.csrd.uiuc.edu
- */
-
- /* getc.c
- *
- * Performs single-character buffered I/O
- */
-
- #include <stdio.h>
-
- extern int _filebfill();
-
- int fgetc(fp)
- FILE *fp;
- {
- if ( fp->_filecpos >= fp->_fileend )
- return _filebfill( fp );
- return (*fp->_filecpos++ & 0xFF);
- }
-
-
- int ungetc(c, fp )
- char c;
- FILE *fp;
- {
- if ( c == EOF || fp->_filecpos <= fp->_filebufp )
- return EOF;
-
- *--fp->_filecpos = c;
- return (c);
- }
-