+C
+C Copyright (c) 1980 The Regents of the University of California.
+C All rights reserved.
+C
+C This module is believed to contain source code proprietary to AT&T.
+C Use and redistribution is subject to the Berkeley Software License
+C Agreement and your Software Agreement with AT&T (Western Electric).
+C
+C @(#)bitst.f 5.2 (Berkeley) 4/12/91
+C
+