1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/security/nss/lib/dbm/src/h_log2.c Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,52 @@
1.4 +/*-
1.5 + * Copyright (c) 1990, 1993, 1994
1.6 + * The Regents of the University of California. All rights reserved.
1.7 + *
1.8 + * This code is derived from software contributed to Berkeley by
1.9 + * Margo Seltzer.
1.10 + *
1.11 + * Redistribution and use in source and binary forms, with or without
1.12 + * modification, are permitted provided that the following conditions
1.13 + * are met:
1.14 + * 1. Redistributions of source code must retain the above copyright
1.15 + * notice, this list of conditions and the following disclaimer.
1.16 + * 2. Redistributions in binary form must reproduce the above copyright
1.17 + * notice, this list of conditions and the following disclaimer in the
1.18 + * documentation and/or other materials provided with the distribution.
1.19 + * 3. ***REMOVED*** - see
1.20 + * ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change
1.21 + * 4. Neither the name of the University nor the names of its contributors
1.22 + * may be used to endorse or promote products derived from this software
1.23 + * without specific prior written permission.
1.24 + *
1.25 + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
1.26 + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.27 + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.28 + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
1.29 + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1.30 + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
1.31 + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1.32 + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
1.33 + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
1.34 + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1.35 + * SUCH DAMAGE.
1.36 + */
1.37 +
1.38 +#if defined(LIBC_SCCS) && !defined(lint)
1.39 +static char sccsid[] = "@(#)hash_log2.c 8.2 (Berkeley) 5/31/94";
1.40 +#endif /* LIBC_SCCS and not lint */
1.41 +
1.42 +#include <stdio.h>
1.43 +#ifndef macintosh
1.44 +#include <sys/types.h>
1.45 +#endif
1.46 +#include "mcom_db.h"
1.47 +
1.48 +uint32 __log2(uint32 num)
1.49 +{
1.50 + register uint32 i, limit;
1.51 +
1.52 + limit = 1;
1.53 + for (i = 0; limit < num; limit = limit << 1, i++) {}
1.54 + return (i);
1.55 +}
