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tuple support: random_result

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bolero-MURAKAMI 2013-04-22 14:51:38 +09:00
parent ba3d7d74b0
commit f461643582
4 changed files with 97 additions and 3 deletions
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96
sprout/random/random_result.hpp
View file

@ -7,8 +7,10 @@
#include <type_traits> #include <type_traits>
#include <sprout/config.hpp> #include <sprout/config.hpp>
#include <sprout/iterator/next.hpp> #include <sprout/iterator/next.hpp>
#include <sprout/tuple/tuple.hpp>
#include <sprout/generator.hpp> #include <sprout/generator.hpp>
#include <sprout/utility/swap.hpp> #include <sprout/utility/swap.hpp>
#include <sprout/utility/move.hpp>
namespace sprout { namespace sprout {
namespace random { namespace random {
@ -288,6 +290,100 @@ namespace sprout {
} // namespace random } // namespace random
using sprout::random::random_result; using sprout::random::random_result;
namespace tuples {
namespace detail {
template<std::size_t I, typename T>
struct tuple_element_impl;
template<typename Engine, typename Distribution>
struct tuple_element_impl<0, sprout::random::random_result<Engine, Distribution> > {
public:
typedef typename sprout::random::random_result<Engine, Distribution>::result_type type;
};
template<typename Engine, typename Distribution>
struct tuple_element_impl<1, sprout::random::random_result<Engine, Distribution> > {
public:
typedef sprout::random::random_result<Engine, Distribution> type;
};
template<std::size_t I, typename T>
struct get_impl;
template<typename Engine, typename Distribution>
struct get_impl<0, sprout::random::random_result<Engine, Distribution> > {
public:
SPROUT_CONSTEXPR typename sprout::random::random_result<Engine, Distribution>::result_type&
operator()(sprout::random::random_result<Engine, Distribution>& t) const {
return t.generated_value();
}
SPROUT_CONSTEXPR typename sprout::random::random_result<Engine, Distribution>::result_type const&
operator()(sprout::random::random_result<Engine, Distribution> const& t) const {
return t.generated_value();
}
};
template<typename Engine, typename Distribution>
struct get_impl<1, sprout::random::random_result<Engine, Distribution> > {
public:
SPROUT_CONSTEXPR sprout::random::random_result<Engine, Distribution>&
operator()(sprout::random::random_result<Engine, Distribution>& t) const {
return t.next_generator();
}
SPROUT_CONSTEXPR sprout::random::random_result<Engine, Distribution> const&
operator()(sprout::random::random_result<Engine, Distribution> const& t) const {
return t.next_generator();
}
};
} // namespace detail
} // namespace tuples
} // namespace sprout
namespace std {
#if defined(__clang__)
# pragma clang diagnostic push
# pragma clang diagnostic ignored "-Wmismatched-tags"
#endif
//
// tuple_size
//
template<typename Engine, typename Distribution>
struct tuple_size<sprout::random::random_result<Engine, Distribution> >
: public std::integral_constant<std::size_t, 2>
{};
//
// tuple_element
//
template<std::size_t I, typename Engine, typename Distribution>
struct tuple_element<I, sprout::random::random_result<Engine, Distribution> >
: public sprout::tuples::detail::tuple_element_impl<I, sprout::random::random_result<Engine, Distribution> >
{};
#if defined(__clang__)
# pragma clang diagnostic pop
#endif
} // namespace std
namespace sprout {
namespace random {
//
// tuple_get
//
template<std::size_t I, typename Engine, typename Distribution>
inline SPROUT_CONSTEXPR typename sprout::tuples::tuple_element<I, sprout::random::random_result<Engine, Distribution> >::type&
tuple_get(sprout::random::random_result<Engine, Distribution>& t) SPROUT_NOEXCEPT {
static_assert(I < 2, "tuple_get: index out of range");
return sprout::tuples::detail::get_impl<I, sprout::random::random_result<Engine, Distribution> >()(t);
}
template<std::size_t I, typename Engine, typename Distribution>
inline SPROUT_CONSTEXPR typename sprout::tuples::tuple_element<I, sprout::random::random_result<Engine, Distribution> >::type const&
tuple_get(sprout::random::random_result<Engine, Distribution> const& t) SPROUT_NOEXCEPT {
static_assert(I < 2, "tuple_get: index out of range");
return sprout::tuples::detail::get_impl<I, sprout::random::random_result<Engine, Distribution> >()(t);
}
template<std::size_t I, typename Engine, typename Distribution>
inline SPROUT_CONSTEXPR typename sprout::tuples::tuple_element<I, sprout::random::random_result<Engine, Distribution> >::type&&
tuple_get(sprout::random::random_result<Engine, Distribution>&& t) SPROUT_NOEXCEPT {
return sprout::move(sprout::tuples::get<I>(t));
}
} // namespace random
} // namespace sprout } // namespace sprout
#endif // #ifndef SPROUT_RANDOM_RANDOM_RESULT_HPP #endif // #ifndef SPROUT_RANDOM_RANDOM_RESULT_HPP

1
sprout/tuple/sscrisk/cel/utility.hpp
View file

@ -55,7 +55,6 @@ namespace sprout {
}; };
template<typename T1, typename T2> template<typename T1, typename T2>
struct get_impl<1, sscrisk::cel::pair<T1, T2> > { struct get_impl<1, sscrisk::cel::pair<T1, T2> > {
public:
public: public:
SPROUT_CONSTEXPR T2& operator()(sscrisk::cel::pair<T1, T2>& t) const { SPROUT_CONSTEXPR T2& operator()(sscrisk::cel::pair<T1, T2>& t) const {
return t.second; return t.second;

1
sprout/tuple/std/utility.hpp
View file

@ -25,7 +25,6 @@ namespace sprout {
}; };
template<typename T1, typename T2> template<typename T1, typename T2>
struct get_impl<1, std::pair<T1, T2> > { struct get_impl<1, std::pair<T1, T2> > {
public:
public: public:
SPROUT_CONSTEXPR T2& operator()(std::pair<T1, T2>& t) const { SPROUT_CONSTEXPR T2& operator()(std::pair<T1, T2>& t) const {
return t.second; return t.second;