Initial revision

lang/pc/libpc/buff.c

@@ -0,0 +1,34 @@
+/*
+ * (c) copyright 1983 by the Vrije Universiteit, Amsterdam, The Netherlands.
+ *
+ *          This product is part of the Amsterdam Compiler Kit.
+ *
+ * Permission to use, sell, duplicate or disclose this software must be
+ * obtained in writing. Requests for such permissions may be sent to
+ *
+ *      Dr. Andrew S. Tanenbaum
+ *      Wiskundig Seminarium
+ *      Vrije Universiteit
+ *      Postbox 7161
+ *      1007 MC Amsterdam
+ *      The Netherlands
+ *
+ */
+
+/* Author: J.W. Stevenson */
+
+#include	<pc_file.h>
+
+extern		_flush();
+
+/* procedure buff(var f:file of ?); */
+
+buff(f) struct file *f; {
+	int sz;
+
+	if ((f->flags & (0377|WRBIT)) != (MAGIC|WRBIT))
+		return;
+	_flush(f);
+	sz = f->size;
+	f->count = f->buflen = (sz>512 ? sz : 512-512%sz);
+}