.ref-8c8a5b54e79564c14fc7a2823a21a8f048449bcf/usr/src/lib/libc/db/hash/hash_log2.c

/*-
 * Copyright (c) 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Margo Seltzer.
 *
 * %sccs.include.redist.c%
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)hash_log2.c 5.1 (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */

__log2( num )
int     num;
{
    register int        i;
    register int        limit = 1;

    for ( i = 0; limit < num; limit = limit << 1, i++ );
    return (i);
}