thrust/random.h

File members: thrust/random.h

/*
 *  Copyright 2008-2013 NVIDIA Corporation
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

#pragma once

#include <thrust/detail/config.h>

#if defined(_CCCL_IMPLICIT_SYSTEM_HEADER_GCC)
#  pragma GCC system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_CLANG)
#  pragma clang system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_MSVC)
#  pragma system_header
#endif // no system header
#include <cstdint>

// RNGs
#include <thrust/random/discard_block_engine.h>
#include <thrust/random/linear_congruential_engine.h>
#include <thrust/random/linear_feedback_shift_engine.h>
#include <thrust/random/subtract_with_carry_engine.h>
#include <thrust/random/xor_combine_engine.h>

// distributions
#include <thrust/random/normal_distribution.h>
#include <thrust/random/uniform_int_distribution.h>
#include <thrust/random/uniform_real_distribution.h>

THRUST_NAMESPACE_BEGIN

namespace random
{

using ranlux24 = discard_block_engine<ranlux24_base, 223, 23>;

using ranlux48 = discard_block_engine<ranlux48_base, 389, 11>;

using taus88 =
  xor_combine_engine<linear_feedback_shift_engine<std::uint32_t, 32U, 31U, 13U, 12U>,
                     0,
                     xor_combine_engine<linear_feedback_shift_engine<std::uint32_t, 32U, 29U, 2U, 4U>,
                                        0,
                                        linear_feedback_shift_engine<std::uint32_t, 32U, 28U, 3U, 17U>,
                                        0>,
                     0>;

using default_random_engine = minstd_rand;

} // namespace random

// import names into thrust::
using random::default_random_engine;
using random::ranlux24;
using random::ranlux48;
using random::taus88;

THRUST_NAMESPACE_END