/* boost random/detail/seed.hpp header file * * Copyright Steven Watanabe 2009 * 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_SEED_HPP #define BOOST_RANDOM_DETAIL_SEED_HPP #include <boost/config.hpp> // Sun seems to have trouble with the use of SFINAE for the // templated constructor. So does Borland. #if !defined(BOOST_NO_SFINAE) && !defined(__SUNPRO_CC) && !defined(__BORLANDC__) #include <boost/utility/enable_if.hpp> #include <boost/type_traits/is_arithmetic.hpp> namespace boost { namespace random { namespace detail { template<class T> struct disable_seed : boost::disable_if<boost::is_arithmetic<T> > {}; template<class Engine, class T> struct disable_constructor : disable_seed<T> {}; template<class Engine> struct disable_constructor<Engine, Engine> {}; #define BOOST_RANDOM_DETAIL_GENERATOR_CONSTRUCTOR(Self, Generator, gen) \ template<class Generator> \ explicit Self(Generator& gen, typename ::boost::random::detail::disable_constructor<Self, Generator>::type* = 0) #define BOOST_RANDOM_DETAIL_GENERATOR_SEED(Self, Generator, gen) \ template<class Generator> \ void seed(Generator& gen, typename ::boost::random::detail::disable_seed<Generator>::type* = 0) #define BOOST_RANDOM_DETAIL_SEED_SEQ_CONSTRUCTOR(Self, SeedSeq, seq) \ template<class SeedSeq> \ explicit Self(SeedSeq& seq, typename ::boost::random::detail::disable_constructor<Self, SeedSeq>::type* = 0) #define BOOST_RANDOM_DETAIL_SEED_SEQ_SEED(Self, SeedSeq, seq) \ template<class SeedSeq> \ void seed(SeedSeq& seq, typename ::boost::random::detail::disable_seed<SeedSeq>::type* = 0) #define BOOST_RANDOM_DETAIL_ARITHMETIC_CONSTRUCTOR(Self, T, x) \ explicit Self(const T& x) #define BOOST_RANDOM_DETAIL_ARITHMETIC_SEED(Self, T, x) \ void seed(const T& x) } } } #else #include <boost/type_traits/is_arithmetic.hpp> #include <boost/mpl/bool.hpp> #define BOOST_RANDOM_DETAIL_GENERATOR_CONSTRUCTOR(Self, Generator, gen) \ Self(Self& other) { *this = other; } \ Self(const Self& other) { *this = other; } \ template<class Generator> \ explicit Self(Generator& gen) { \ boost_random_constructor_impl(gen, ::boost::is_arithmetic<Generator>());\ } \ template<class Generator> \ void boost_random_constructor_impl(Generator& gen, ::boost::mpl::false_) #define BOOST_RANDOM_DETAIL_GENERATOR_SEED(Self, Generator, gen) \ template<class Generator> \ void seed(Generator& gen) { \ boost_random_seed_impl(gen, ::boost::is_arithmetic<Generator>());\ }\ template<class Generator>\ void boost_random_seed_impl(Generator& gen, ::boost::mpl::false_) #define BOOST_RANDOM_DETAIL_SEED_SEQ_CONSTRUCTOR(Self, SeedSeq, seq) \ Self(Self& other) { *this = other; } \ Self(const Self& other) { *this = other; } \ template<class SeedSeq> \ explicit Self(SeedSeq& seq) { \ boost_random_constructor_impl(seq, ::boost::is_arithmetic<SeedSeq>());\ } \ template<class SeedSeq> \ void boost_random_constructor_impl(SeedSeq& seq, ::boost::mpl::false_) #define BOOST_RANDOM_DETAIL_SEED_SEQ_SEED(Self, SeedSeq, seq) \ template<class SeedSeq> \ void seed(SeedSeq& seq) { \ boost_random_seed_impl(seq, ::boost::is_arithmetic<SeedSeq>()); \ } \ template<class SeedSeq> \ void boost_random_seed_impl(SeedSeq& seq, ::boost::mpl::false_) #define BOOST_RANDOM_DETAIL_ARITHMETIC_CONSTRUCTOR(Self, T, x) \ explicit Self(const T& x) { boost_random_constructor_impl(x, ::boost::mpl::true_()); }\ void boost_random_constructor_impl(const T& x, ::boost::mpl::true_) #define BOOST_RANDOM_DETAIL_ARITHMETIC_SEED(Self, T, x) \ void seed(const T& x) { boost_random_seed_impl(x, ::boost::mpl::true_()); }\ void boost_random_seed_impl(const T& x, ::boost::mpl::true_) #endif #endif