add directory study

study/linux-travel/minix-386/estdio21.tar/estdio21/getc.c

@@ -0,0 +1,16 @@
+/*                                 g e t c                                 */
+
+#include "stdiolib.h"
+
+#define MACRO_SHADOW
+#include "hidden.h"
+
+/*LINTLIBRARY*/
+
+int getc F1(register FILE *, fp)
+
+{
+  return fp->__rptr >= fp->__rend
+	 ? (*fp->__filbuf)(fp)
+	 : UCHAR(*fp->__rptr++);
+}