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NAME
lowbit - index of lowest nonzero bit in binary representation of integer
SYNOPSIS
lowbit(x)
TYPES
x nonzero integer
return integer
DESCRIPTION
If x is a nonzero integer, lowbit(x) returns the index of the
lowest nonzero bit in the binary representation of abs(x). Equivalently,
lowbit(x) is the greatest integer for which x/2^n is an integer;
the binary representation of x then ends with n zero bits.
EXAMPLE
; print lowbit(2), lowbit(3), lowbit(4), lowbit(-15), lowbit(2^27)
1 0 2 0 27
LIMITS
none
LINK LIBRARY
long zlowbit(ZVALUE x);
SEE ALSO
highbit, digits
## Copyright (C) 1999 Landon Curt Noll
##
## Calc is open software; you can redistribute it and/or modify it under
## the terms of the version 2.1 of the GNU Lesser General Public License
## as published by the Free Software Foundation.
##
## Calc is distributed in the hope that it will be useful, but WITHOUT
## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
## Public License for more details.
##
## A copy of version 2.1 of the GNU Lesser General Public License is
## distributed with calc under the filename COPYING-LGPL. You should have
## received a copy with calc; if not, write to Free Software Foundation, Inc.
## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
##
## Under source code control: 1995/10/03 10:40:02
## File existed as early as: 1995
##
## chongo <was here> /\oo/\ http://www.isthe.com/chongo/
## Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
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