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This package includes software taken from the following sources:
(1) Software for bit packing and unpacking. Algorithm described in
Daniel Lemire and Leonid Boytsov, Decoding billions of integers per
second through vectorization, Software Practice & Experience 45, 1-29,
2015.
Code obtained from https://github.com/lemire/FastPFor, and covered
under the Apache License, Version 2.0 (ASL2.0), available at
http://www.apache.org/licenses/LICENSE-2.0. The code was modified for
use in this project.
(2) Software for fast approximate logarithm and exponential
computations. Code obtained from http://code.google.com/p/fastapprox,
and covered under the following license:
/*=====================================================================*
* Copyright (C) 2012 Paul Mineiro *
* All rights reserved. *
* *
* Redistribution and use in source and binary forms, with *
* or without modification, are permitted provided that the *
* following conditions are met: *
* *
* * Redistributions of source code must retain the *
* above copyright notice, this list of conditions and *
* the following disclaimer. *
* *
* * Redistributions in binary form must reproduce the *
* above copyright notice, this list of conditions and *
* the following disclaimer in the documentation and/or *
* other materials provided with the distribution. *
* *
* * Neither the name of Paul Mineiro nor the names *
* of other contributors may be used to endorse or promote *
* products derived from this software without specific *
* prior written permission. *
* *
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND *
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, *
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES *
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE *
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER *
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, *
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES *
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE *
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR *
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT *
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY *
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE *
* POSSIBILITY OF SUCH DAMAGE. *
* *
* Contact: Paul Mineiro <paul@mineiro.com> *
*=====================================================================*/
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