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116 lines
5.0 KiB
C++
116 lines
5.0 KiB
C++
/* boost random/detail/seed.hpp header file
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*
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* Copyright Steven Watanabe 2009
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* Distributed under the Boost Software License, Version 1.0. (See
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* accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*
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* See http://www.boost.org for most recent version including documentation.
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*
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* $Id$
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*/
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#ifndef BOOST_RANDOM_DETAIL_SEED_HPP
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#define BOOST_RANDOM_DETAIL_SEED_HPP
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#include <boost/config.hpp>
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// Sun seems to have trouble with the use of SFINAE for the
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// templated constructor. So does Borland.
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#if !defined(BOOST_NO_SFINAE) && !defined(__SUNPRO_CC) && !defined(__BORLANDC__)
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#include <boost/utility/enable_if.hpp>
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#include <boost/type_traits/is_arithmetic.hpp>
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#include <boost/mpl/bool.hpp>
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namespace boost {
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namespace random {
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namespace detail {
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template<class T>
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struct disable_seed : boost::disable_if<boost::is_arithmetic<T> > {};
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template<class Engine, class T>
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struct disable_constructor : disable_seed<T> {};
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template<class Engine>
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struct disable_constructor<Engine, Engine> {};
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#define BOOST_RANDOM_DETAIL_GENERATOR_CONSTRUCTOR(Self, Generator, gen) \
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template<class Generator> \
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explicit Self(Generator& gen, typename ::boost::random::detail::disable_constructor<Self, Generator>::type* = 0)
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#define BOOST_RANDOM_DETAIL_GENERATOR_SEED(Self, Generator, gen) \
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template<class Generator> \
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void seed(Generator& gen, typename ::boost::random::detail::disable_seed<Generator>::type* = 0)
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#define BOOST_RANDOM_DETAIL_SEED_SEQ_CONSTRUCTOR(Self, SeedSeq, seq) \
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template<class SeedSeq> \
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explicit Self(SeedSeq& seq, typename ::boost::random::detail::disable_constructor<Self, SeedSeq>::type* = 0)
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#define BOOST_RANDOM_DETAIL_SEED_SEQ_SEED(Self, SeedSeq, seq) \
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template<class SeedSeq> \
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void seed(SeedSeq& seq, typename ::boost::random::detail::disable_seed<SeedSeq>::type* = 0)
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#define BOOST_RANDOM_DETAIL_ARITHMETIC_CONSTRUCTOR(Self, T, x) \
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explicit Self(const T& x)
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#define BOOST_RANDOM_DETAIL_ARITHMETIC_SEED(Self, T, x) \
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void seed(const T& x)
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}
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}
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}
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#else
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#include <boost/type_traits/is_arithmetic.hpp>
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#include <boost/mpl/bool.hpp>
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#define BOOST_RANDOM_DETAIL_GENERATOR_CONSTRUCTOR(Self, Generator, gen) \
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Self(Self& other) { *this = other; } \
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Self(const Self& other) { *this = other; } \
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template<class Generator> \
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explicit Self(Generator& gen) { \
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boost_random_constructor_impl(gen, ::boost::is_arithmetic<Generator>());\
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} \
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template<class Generator> \
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void boost_random_constructor_impl(Generator& gen, ::boost::mpl::false_)
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#define BOOST_RANDOM_DETAIL_GENERATOR_SEED(Self, Generator, gen) \
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template<class Generator> \
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void seed(Generator& gen) { \
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boost_random_seed_impl(gen, ::boost::is_arithmetic<Generator>());\
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}\
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template<class Generator>\
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void boost_random_seed_impl(Generator& gen, ::boost::mpl::false_)
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#define BOOST_RANDOM_DETAIL_SEED_SEQ_CONSTRUCTOR(Self, SeedSeq, seq) \
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Self(Self& other) { *this = other; } \
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Self(const Self& other) { *this = other; } \
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template<class SeedSeq> \
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explicit Self(SeedSeq& seq) { \
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boost_random_constructor_impl(seq, ::boost::is_arithmetic<SeedSeq>());\
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} \
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template<class SeedSeq> \
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void boost_random_constructor_impl(SeedSeq& seq, ::boost::mpl::false_)
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#define BOOST_RANDOM_DETAIL_SEED_SEQ_SEED(Self, SeedSeq, seq) \
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template<class SeedSeq> \
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void seed(SeedSeq& seq) { \
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boost_random_seed_impl(seq, ::boost::is_arithmetic<SeedSeq>()); \
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} \
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template<class SeedSeq> \
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void boost_random_seed_impl(SeedSeq& seq, ::boost::mpl::false_)
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#define BOOST_RANDOM_DETAIL_ARITHMETIC_CONSTRUCTOR(Self, T, x) \
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explicit Self(const T& x) { boost_random_constructor_impl(x, ::boost::mpl::true_()); }\
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void boost_random_constructor_impl(const T& x, ::boost::mpl::true_)
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#define BOOST_RANDOM_DETAIL_ARITHMETIC_SEED(Self, T, x) \
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void seed(const T& x) { boost_random_seed_impl(x, ::boost::mpl::true_()); }\
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void boost_random_seed_impl(const T& x, ::boost::mpl::true_)
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#endif
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#endif
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