| /* 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: seed.hpp 60755 2010-03-22 00:45:06Z steven_watanabe $ |
| */ |
| |
| #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_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_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 |