ClickHouse/contrib/libboost/boost_1_62_0/boost/random/taus88.hpp
2016-12-12 07:17:16 +03:00

46 lines
1.1 KiB
C++

/* boost random/taus88.hpp header file
*
* Copyright Jens Maurer 2000-2001
* Copyright Steven Watanabe 2011
* Distributed under the Boost Software License, Version 1.0. (See
* accompanying file LICENSE_1_0.txt or copy at
* http://www.boost.org/LICENSE_1_0.txt)
*
* See http://www.boost.org/libs/random for documentation.
*
* $Id$
*
*/
#ifndef BOOST_RANDOM_TAUS88_HPP
#define BOOST_RANDOM_TAUS88_HPP
#include <boost/random/linear_feedback_shift.hpp>
#include <boost/random/xor_combine.hpp>
namespace boost {
namespace random {
/**
* The specialization taus88 was suggested in
*
* @blockquote
* "Maximally Equidistributed Combined Tausworthe Generators",
* Pierre L'Ecuyer, Mathematics of Computation, Volume 65,
* Number 213, January 1996, Pages 203-213
* @endblockquote
*/
typedef xor_combine_engine<
xor_combine_engine<
linear_feedback_shift_engine<uint32_t, 32, 31, 13, 12>, 0,
linear_feedback_shift_engine<uint32_t, 32, 29, 2, 4>, 0>, 0,
linear_feedback_shift_engine<uint32_t, 32, 28, 3, 17>, 0> taus88;
} // namespace random
using random::taus88;
} // namespace boost
#endif // BOOST_RANDOM_TAUS88_HPP