Zero Fill Right Shift (bitwise logical right shift)

R.white · September 1, 2017, 4:30am

Hi All,

I’m looking for the equivalent Java >>> Triple shift function.

bitShrn() is close (>>) but not quite right.

Any ideas?

Regards,
RW

R.white · September 13, 2017, 12:28am

Any one have any ideas?

joe.gooch · September 13, 2017, 12:04pm

If your number is positive, >> is the same as >>>

How big are your numbers?
Is the input value ever negative?

joe.gooch · September 13, 2017, 12:07pm

Also what’s wrong with bitshrn…

Especially because the implementation uses >>>

github.com

lucee/Lucee/blob/master/core/src/main/java/lucee/runtime/functions/math/BitSHRN.java

/**
 *
 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either 
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library 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.
 * 
 * You should have received a copy of the GNU Lesser General Public 
 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 * 
 **/
/**
 * Implements the CFML Function bitshrn

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