FM / detail

/usr/include/boost/beast/core/detail

Name	Size	Mode	Actions
impl/	-	0755	rm
allocator.hpp	945	0644	edit dl rm
async_base.hpp	901	0644	edit dl rm
base64.hpp	1942	0644	edit dl rm
base64.ipp	6170	0644	edit dl rm
bind_continuation.hpp	3504	0644	edit dl rm
bind_default_executor.hpp	3243	0644	edit dl rm
bind_handler.hpp	10959	0644	edit dl rm
buffer.hpp	1825	0644	edit dl rm
buffers_pair.hpp	2636	0644	edit dl rm
buffers_range_adaptor.hpp	2651	0644	edit dl rm
buffers_ref.hpp	1648	0644	edit dl rm
buffer_traits.hpp	2095	0644	edit dl rm
chacha.hpp	4167	0644	edit dl rm
char_buffer.hpp	1407	0644	edit dl rm
clamp.hpp	1229	0644	edit dl rm
config.hpp	2884	0644	edit dl rm
cpu_info.hpp	1787	0644	edit dl rm
flat_stream.hpp	1919	0644	edit dl rm
get_io_context.hpp	2338	0644	edit dl rm
is_invocable.hpp	1888	0644	edit dl rm
ostream.hpp	7004	0644	edit dl rm
pcg.hpp	1464	0644	edit dl rm
read.hpp	9217	0644	edit dl rm
remap_post_to_defer.hpp	2152	0644	edit dl rm
service_base.hpp	850	0644	edit dl rm
sha1.hpp	1624	0644	edit dl rm
sha1.ipp	7998	0644	edit dl rm
static_const.hpp	1154	0644	edit dl rm
static_ostream.hpp	3030	0644	edit dl rm
static_string.hpp	3030	0644	edit dl rm
stream_base.hpp	2685	0644	edit dl rm
stream_traits.hpp	2796	0644	edit dl rm
string.hpp	898	0644	edit dl rm
temporary_buffer.hpp	1611	0644	edit dl rm
tuple.hpp	2194	0644	edit dl rm
type_traits.hpp	2779	0644	edit dl rm
variant.hpp	4889	0644	edit dl rm
varint.hpp	1712	0644	edit dl rm
win32_unicode_path.hpp	2148	0644	edit dl rm
work_guard.hpp	1851	0644	edit dl rm

Edit: /usr/include/boost/beast/core/detail/pcg.hpp (1464B)

//
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// 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)
//
// Official repository: https://github.com/boostorg/beast
//

#ifndef BOOST_BEAST_CORE_DETAIL_PCG_HPP
#define BOOST_BEAST_CORE_DETAIL_PCG_HPP

#include <boost/core/ignore_unused.hpp>
#include <cstdint>
#include <random>

namespace boost {
namespace beast {
namespace detail {

class pcg
{
    std::uint64_t state_ = 0;
    std::uint64_t increment_;

public:
    using result_type = std::uint32_t;

// Initialize the generator.
    // There are no restrictions on the input values.
    pcg(
        std::uint64_t seed,
        std::uint64_t stream)
    {
        // increment must be odd
        increment_ = 2 * stream + 1;
        boost::ignore_unused((*this)());
        state_ += seed;
        boost::ignore_unused((*this)());
    }

std::uint32_t
    operator()()
    {
        std::uint64_t const p = state_;
        state_ = p *
            6364136223846793005ULL +
            increment_;
        std::uint32_t const x =
            static_cast<std::uint32_t>(
            ((p >> 18) ^ p) >> 27);
        std::uint32_t const r = p >> 59;
    #ifdef BOOST_MSVC
        return _rotr(x, r);
    #else
        return (x >> r) | (x << ((1 + ~r) & 31));
    #endif
    }
};

} // detail
} // beast
} // boost

#endif

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