FM / detail

/usr/include/boost/random/detail

Name	Size	Mode	Actions
auto_link.hpp	959	0644	edit dl rm
config.hpp	538	0644	edit dl rm
const_mod.hpp	5566	0644	edit dl rm
disable_warnings.hpp	823	0644	edit dl rm
enable_warnings.hpp	552	0644	edit dl rm
generator_bits.hpp	874	0644	edit dl rm
generator_seed_seq.hpp	861	0644	edit dl rm
gray_coded_qrng.hpp	4662	0644	edit dl rm
integer_log2.hpp	2181	0644	edit dl rm
int_float_pair.hpp	4178	0644	edit dl rm
iterator_mixin.hpp	1303	0644	edit dl rm
large_arithmetic.hpp	3615	0644	edit dl rm
niederreiter_base2_table.hpp	36285	0644	edit dl rm
operators.hpp	3673	0644	edit dl rm
polynomial.hpp	13305	0644	edit dl rm
ptr_helper.hpp	1534	0644	edit dl rm
qrng_base.hpp	8659	0644	edit dl rm
seed.hpp	5020	0644	edit dl rm
seed_impl.hpp	14283	0644	edit dl rm
signed_unsigned_tools.hpp	2535	0644	edit dl rm
sobol_table.hpp	234013	0644	edit dl rm
uniform_int_float.hpp	2123	0644	edit dl rm
vector_io.hpp	1792	0644	edit dl rm

Edit: /usr/include/boost/random/detail/integer_log2.hpp (2181B)

#ifndef BOOST_RANDOM_DETAIL_INTEGER_LOG2_HPP
#define BOOST_RANDOM_DETAIL_INTEGER_LOG2_HPP

#include <boost/config.hpp>
#include <boost/limits.hpp>
#include <boost/integer/integer_log2.hpp>

namespace boost {
namespace random {
namespace detail {

#if !defined(BOOST_NO_CXX11_CONSTEXPR)
#define BOOST_RANDOM_DETAIL_CONSTEXPR constexpr
#elif defined(BOOST_MSVC)
#define BOOST_RANDOM_DETAIL_CONSTEXPR __forceinline
#elif defined(__GNUC__) && __GNUC__ >= 4
#define BOOST_RANDOM_DETAIL_CONSTEXPR inline __attribute__((__const__)) __attribute__((__always_inline__))
#else
#define BOOST_RANDOM_DETAIL_CONSTEXPR inline
#endif

template<int Shift>
struct integer_log2_impl
{
#if defined(BOOST_NO_CXX11_CONSTEXPR)
    template<class T>
    BOOST_RANDOM_DETAIL_CONSTEXPR static int apply(T t, int accum)
    {
        int update = ((t >> Shift) != 0) * Shift;
        return integer_log2_impl<Shift / 2>::apply(t >> update, accum + update);
    }
#else
    template<class T>
    BOOST_RANDOM_DETAIL_CONSTEXPR static int apply2(T t, int accum, int update)
    {
        return integer_log2_impl<Shift / 2>::apply(t >> update, accum + update);
    }

template<class T>
    BOOST_RANDOM_DETAIL_CONSTEXPR static int apply(T t, int accum)
    {
        return apply2(t, accum, ((t >> Shift) != 0) * Shift);
    }
#endif
};

template<>
struct integer_log2_impl<1>
{
    template<class T>
    BOOST_RANDOM_DETAIL_CONSTEXPR static int apply(T t, int accum)
    {
        return int(t >> 1) + accum;
    }
};

template<class T>
BOOST_RANDOM_DETAIL_CONSTEXPR int integer_log2(T t)
{
    return integer_log2_impl<
        ::boost::detail::max_pow2_less<
            ::std::numeric_limits<T>::digits, 4
        >::value
    >::apply(t, 0);
}

} // namespace detail
} // namespace random
} // namespace boost

#endif // BOOST_RANDOM_DETAIL_INTEGER_LOG2_HPP

/* boost random/detail/integer_log2.hpp header file * * 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 for most recent version including documentation. * * $Id$ * */ #ifndef BOOST_RANDOM_DETAIL_INTEGER_LOG2_HPP #define BOOST_RANDOM_DETAIL_INTEGER_LOG2_HPP #include #include #include namespace boost { namespace random { namespace detail { #if !defined(BOOST_NO_CXX11_CONSTEXPR) #define BOOST_RANDOM_DETAIL_CONSTEXPR constexpr #elif defined(BOOST_MSVC) #define BOOST_RANDOM_DETAIL_CONSTEXPR __forceinline #elif defined(__GNUC__) && __GNUC__ >= 4 #define BOOST_RANDOM_DETAIL_CONSTEXPR inline __attribute__((__const__)) __attribute__((__always_inline__)) #else #define BOOST_RANDOM_DETAIL_CONSTEXPR inline #endif template struct integer_log2_impl { #if defined(BOOST_NO_CXX11_CONSTEXPR) template BOOST_RANDOM_DETAIL_CONSTEXPR static int apply(T t, int accum) { int update = ((t >> Shift) != 0) * Shift; return integer_log2_impl::apply(t >> update, accum + update); } #else template BOOST_RANDOM_DETAIL_CONSTEXPR static int apply2(T t, int accum, int update) { return integer_log2_impl::apply(t >> update, accum + update); } template BOOST_RANDOM_DETAIL_CONSTEXPR static int apply(T t, int accum) { return apply2(t, accum, ((t >> Shift) != 0) * Shift); } #endif }; template<> struct integer_log2_impl<1> { template BOOST_RANDOM_DETAIL_CONSTEXPR static int apply(T t, int accum) { return int(t >> 1) + accum; } }; template BOOST_RANDOM_DETAIL_CONSTEXPR int integer_log2(T t) { return integer_log2_impl< ::boost::detail::max_pow2_less< ::std::numeric_limits::digits, 4 >::value >::apply(t, 0); } } // namespace detail } // namespace random } // namespace boost #endif // BOOST_RANDOM_DETAIL_INTEGER_LOG2_HPP