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reimplementation tuple class

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bolero-MURAKAMI 2014-09-20 12:55:29 +09:00
parent 0c15b01b0d
commit 3b0ab6f5fd
11 changed files with 438 additions and 371 deletions
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2
README.rst
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@ -36,7 +36,7 @@ Supported Compilers
Linux: Linux:
* GCC, C++11/14 mode: 4.7.0, 4.7.1, 4.7.2, 4.7.3, 4.7.4, 4.8.0, 4.8.1, 4.8.2, 4.8.3, 4.9.0 * GCC, C++11/14 mode: 4.7.0, 4.7.1, 4.7.2, 4.7.3, 4.7.4, 4.8.0, 4.8.1, 4.8.2, 4.8.3, 4.9.0
* Clang, C++11/14 mode: 3.2, 3.3, 3.4, 3.4.1 * Clang, C++11/14 mode: 3.2, 3.3, 3.4, 3.4.1, 3.5.0
******************************************************************************* *******************************************************************************
Author Author

52
sprout/tpp/algorithm/all_of.hpp
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@ -10,47 +10,43 @@
#include <type_traits> #include <type_traits>
#include <sprout/config.hpp> #include <sprout/config.hpp>
#include <sprout/workaround/std/cstddef.hpp>
#include <sprout/type_traits/integral_constant.hpp> #include <sprout/type_traits/integral_constant.hpp>
#include <sprout/type/type_tuple.hpp>
namespace sprout { namespace sprout {
namespace tpp { namespace tpp {
namespace detail { namespace detail {
template<bool... Values> template<typename Tup, std::size_t First, std::size_t Last, bool = (Last - First == 1)>
struct all_of_impl; struct all_of_impl
template<> : public std::tuple_element<First, Tup>::type
struct all_of_impl<>
: public sprout::true_type
{}; {};
template<> template<typename Tup, std::size_t First, std::size_t Last>
struct all_of_impl<true> struct all_of_impl<Tup, First, Last, false>
: public sprout::true_type : public sprout::integral_constant<
{}; bool,
template<> sprout::tpp::detail::all_of_impl<Tup, First, (First + Last) / 2>::value
struct all_of_impl<false> && sprout::tpp::detail::all_of_impl<Tup, (First + Last) / 2, Last>::value
: public sprout::false_type >
{};
template<bool... Tail>
struct all_of_impl<true, Tail...>
: public sprout::integral_constant<bool, sprout::tpp::detail::all_of_impl<Tail...>::value>
{};
template<bool... Tail>
struct all_of_impl<false, Tail...>
: public sprout::false_type
{}; {};
} // namespace detail } // namespace detail
// //
// all_of_c
//
template<bool... Values>
struct all_of_c
: public sprout::tpp::detail::all_of_impl<Values...>
{};
//
// all_of // all_of
// //
template<typename... Types> template<typename... Types>
struct all_of struct all_of
: public sprout::tpp::all_of_c<Types::value...> : public sprout::tpp::detail::all_of_impl<sprout::types::type_tuple<Types...>, 0, sizeof...(Types)>
{};
template<>
struct all_of<>
: public sprout::true_type
{};
//
// all_of_c
//
template<bool... Values>
struct all_of_c
: public sprout::tpp::all_of<sprout::integral_constant<bool, Values>...>
{}; {};
} // namespace tpp } // namespace tpp
} // namespace sprout } // namespace sprout

53
sprout/tpp/algorithm/any_of.hpp
View file

@ -8,48 +8,45 @@
#ifndef SPROUT_TPP_ALGORITHM_ANY_OF_HPP #ifndef SPROUT_TPP_ALGORITHM_ANY_OF_HPP
#define SPROUT_TPP_ALGORITHM_ANY_OF_HPP #define SPROUT_TPP_ALGORITHM_ANY_OF_HPP
#include <type_traits>
#include <sprout/config.hpp> #include <sprout/config.hpp>
#include <sprout/workaround/std/cstddef.hpp>
#include <sprout/type_traits/integral_constant.hpp> #include <sprout/type_traits/integral_constant.hpp>
#include <sprout/type/type_tuple.hpp>
namespace sprout { namespace sprout {
namespace tpp { namespace tpp {
namespace detail { namespace detail {
template<bool... Values> template<typename Tup, std::size_t First, std::size_t Last, bool = (Last - First == 1)>
struct any_of_impl; struct any_of_impl
template<> : public std::tuple_element<First, Tup>::type
struct any_of_impl<>
: public sprout::false_type
{}; {};
template<> template<typename Tup, std::size_t First, std::size_t Last>
struct any_of_impl<true> struct any_of_impl<Tup, First, Last, false>
: public sprout::true_type : public sprout::integral_constant<
{}; bool,
template<> sprout::tpp::detail::any_of_impl<Tup, First, (First + Last) / 2>::value
struct any_of_impl<false> || sprout::tpp::detail::any_of_impl<Tup, (First + Last) / 2, Last>::value
: public sprout::false_type >
{};
template<bool... Tail>
struct any_of_impl<true, Tail...>
: public sprout::true_type
{};
template<bool... Tail>
struct any_of_impl<false, Tail...>
: public sprout::integral_constant<bool, sprout::tpp::detail::any_of_impl<Tail...>::value>
{}; {};
} // namespace detail } // namespace detail
// //
// any_of_c
//
template<bool... Values>
struct any_of_c
: public sprout::tpp::detail::any_of_impl<Values...>
{};
//
// any_of // any_of
// //
template<typename... Types> template<typename... Types>
struct any_of struct any_of
: public sprout::tpp::any_of_c<Types::value...> : public sprout::tpp::detail::any_of_impl<sprout::types::type_tuple<Types...>, 0, sizeof...(Types)>
{};
template<>
struct any_of<>
: public sprout::false_type
{};
//
// any_of_c
//
template<bool... Values>
struct any_of_c
: public sprout::tpp::any_of<sprout::integral_constant<bool, Values>...>
{}; {};
} // namespace tpp } // namespace tpp
} // namespace sprout } // namespace sprout

53
sprout/tpp/algorithm/none_of.hpp
View file

@ -8,48 +8,45 @@
#ifndef SPROUT_TPP_ALGORITHM_NONE_OF_HPP #ifndef SPROUT_TPP_ALGORITHM_NONE_OF_HPP
#define SPROUT_TPP_ALGORITHM_NONE_OF_HPP #define SPROUT_TPP_ALGORITHM_NONE_OF_HPP
#include <type_traits>
#include <sprout/config.hpp> #include <sprout/config.hpp>
#include <sprout/workaround/std/cstddef.hpp>
#include <sprout/type_traits/integral_constant.hpp> #include <sprout/type_traits/integral_constant.hpp>
#include <sprout/type/type_tuple.hpp>
namespace sprout { namespace sprout {
namespace tpp { namespace tpp {
namespace detail { namespace detail {
template<bool... Values> template<typename Tup, std::size_t First, std::size_t Last, bool = (Last - First == 1)>
struct none_of_impl; struct none_of_impl
template<> : public sprout::integral_constant<bool, !std::tuple_element<First, Tup>::type::value>
struct none_of_impl<>
: public sprout::true_type
{}; {};
template<> template<typename Tup, std::size_t First, std::size_t Last>
struct none_of_impl<true> struct none_of_impl<Tup, First, Last, false>
: public sprout::false_type : public sprout::integral_constant<
{}; bool,
template<> sprout::tpp::detail::none_of_impl<Tup, First, (First + Last) / 2>::value
struct none_of_impl<false> && sprout::tpp::detail::none_of_impl<Tup, (First + Last) / 2, Last>::value
: public sprout::true_type >
{};
template<bool... Tail>
struct none_of_impl<true, Tail...>
: public sprout::false_type
{};
template<bool... Tail>
struct none_of_impl<false, Tail...>
: public sprout::integral_constant<bool, sprout::tpp::detail::none_of_impl<Tail...>::value>
{}; {};
} // namespace detail } // namespace detail
// //
// none_of_c
//
template<bool... Values>
struct none_of_c
: public sprout::tpp::detail::none_of_impl<Values...>
{};
//
// none_of // none_of
// //
template<typename... Types> template<typename... Types>
struct none_of struct none_of
: public sprout::tpp::none_of_c<Types::value...> : public sprout::tpp::detail::none_of_impl<sprout::types::type_tuple<Types...>, 0, sizeof...(Types)>
{};
template<>
struct none_of<>
: public sprout::true_type
{};
//
// none_of_c
//
template<bool... Values>
struct none_of_c
: public sprout::tpp::none_of<sprout::integral_constant<bool, Values>...>
{}; {};
} // namespace tpp } // namespace tpp
} // namespace sprout } // namespace sprout

102
sprout/tpp/algorithm/one_of.hpp
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@ -8,50 +8,98 @@
#ifndef SPROUT_TPP_ALGORITHM_ONE_OF_HPP #ifndef SPROUT_TPP_ALGORITHM_ONE_OF_HPP
#define SPROUT_TPP_ALGORITHM_ONE_OF_HPP #define SPROUT_TPP_ALGORITHM_ONE_OF_HPP
#include <type_traits>
#include <sprout/config.hpp> #include <sprout/config.hpp>
#include <sprout/tpp/algorithm/none_of.hpp> #include <sprout/workaround/std/cstddef.hpp>
#include <sprout/type_traits/integral_constant.hpp> #include <sprout/type_traits/integral_constant.hpp>
#include <sprout/type/type_tuple.hpp>
namespace sprout { namespace sprout {
namespace tpp { namespace tpp {
namespace detail { namespace detail {
template<bool... Values> template<typename Tup, std::size_t First, std::size_t Last, bool = (Last - First == 1)>
struct one_of_impl; struct one_of_impl_1
template<> : public sprout::integral_constant<bool, !std::tuple_element<First, Tup>::type::value>
struct one_of_impl<>
: public sprout::false_type
{}; {};
template<> template<typename Tup, std::size_t First, std::size_t Last>
struct one_of_impl<true> struct one_of_impl_1<Tup, First, Last, false>
: public sprout::true_type : public sprout::integral_constant<
bool,
sprout::tpp::detail::one_of_impl_1<Tup, First, (First + Last) / 2>::value
&& sprout::tpp::detail::one_of_impl_1<Tup, (First + Last) / 2, Last>::value
>
{}; {};
template<>
struct one_of_impl<false> template<typename Tup, std::size_t First, std::size_t Last, bool = (Last - First == 1)>
: public sprout::false_type struct one_of_impl
: public std::tuple_element<First, Tup>::type
{}; {};
template<bool... Tail> template<typename Tup, std::size_t First, std::size_t Last>
struct one_of_impl<true, Tail...> struct one_of_impl<Tup, First, Last, false>
: public sprout::tpp::none_of_c<Tail...> : public sprout::integral_constant<
{}; bool,
template<bool... Tail> sprout::tpp::detail::one_of_impl<Tup, First, (First + Last) / 2>::value
struct one_of_impl<false, Tail...> ? sprout::tpp::detail::one_of_impl_1<Tup, (First + Last) / 2, Last>::value
: public sprout::integral_constant<bool, sprout::tpp::detail::one_of_impl<Tail...>::value> : sprout::tpp::detail::one_of_impl<Tup, (First + Last) / 2, Last>::value
>
{}; {};
} // namespace detail } // namespace detail
// //
// one_of_c
//
template<bool... Values>
struct one_of_c
: public sprout::tpp::detail::one_of_impl<Values...>
{};
//
// one_of // one_of
// //
template<typename... Types> template<typename... Types>
struct one_of struct one_of
: public sprout::tpp::one_of_c<Types::value...> : public sprout::tpp::detail::one_of_impl<sprout::types::type_tuple<Types...>, 0, sizeof...(Types)>
{}; {};
template<>
struct one_of<>
: public sprout::false_type
{};
//
// one_of_c
//
template<bool... Values>
struct one_of_c
: public sprout::tpp::one_of<sprout::integral_constant<bool, Values>...>
{};
// namespace detail {
// template<bool... Values>
// struct one_of_impl;
// template<>
// struct one_of_impl<>
// : public sprout::false_type
// {};
// template<>
// struct one_of_impl<true>
// : public sprout::true_type
// {};
// template<>
// struct one_of_impl<false>
// : public sprout::false_type
// {};
// template<bool... Tail>
// struct one_of_impl<true, Tail...>
// : public sprout::tpp::none_of_c<Tail...>
// {};
// template<bool... Tail>
// struct one_of_impl<false, Tail...>
// : public sprout::integral_constant<bool, sprout::tpp::detail::one_of_impl<Tail...>::value>
// {};
// } // namespace detail
// //
// // one_of_c
// //
// template<bool... Values>
// struct one_of_c
// : public sprout::tpp::detail::one_of_impl<Values...>
// {};
// //
// // one_of
// //
// template<typename... Types>
// struct one_of
// : public sprout::tpp::one_of_c<Types::value...>
// {};
} // namespace tpp } // namespace tpp
} // namespace sprout } // namespace sprout

19
sprout/tuple/tuple/get.hpp
View file

@ -23,36 +23,23 @@
namespace sprout { namespace sprout {
namespace tuples { namespace tuples {
namespace detail {
template<std::size_t I, typename Head, typename... Tail>
inline SPROUT_CONSTEXPR typename std::add_lvalue_reference<Head>::type
get_helper(sprout::tuples::detail::tuple_impl<I, Head, Tail...>& t) SPROUT_NOEXCEPT {
return sprout::tuples::detail::tuple_impl<I, Head, Tail...>::head(t);
}
template<std::size_t I, typename Head, typename... Tail>
inline SPROUT_CONSTEXPR typename std::add_lvalue_reference<typename std::add_const<Head>::type>::type
get_helper(sprout::tuples::detail::tuple_impl<I, Head, Tail...> const& t) SPROUT_NOEXCEPT {
return sprout::tuples::detail::tuple_impl<I, Head, Tail...>::head(t);
}
} // namespace detail
// //
// tuple_get // tuple_get
// //
template<std::size_t I, typename... Types> template<std::size_t I, typename... Types>
inline SPROUT_CONSTEXPR typename sprout::tuples::tuple_element<I, sprout::tuples::tuple<Types...> >::type& inline SPROUT_CONSTEXPR typename sprout::tuples::tuple_element<I, sprout::tuples::tuple<Types...> >::type&
tuple_get(sprout::tuples::tuple<Types...>& t) SPROUT_NOEXCEPT { tuple_get(sprout::tuples::tuple<Types...>& t) SPROUT_NOEXCEPT {
return sprout::tuples::detail::get_helper<I>(t); return sprout::tuples::detail::tuple_access<Types...>::template get<I>(t);
} }
template<std::size_t I, typename... Types> template<std::size_t I, typename... Types>
inline SPROUT_CONSTEXPR typename sprout::tuples::tuple_element<I, sprout::tuples::tuple<Types...> >::type&& inline SPROUT_CONSTEXPR typename sprout::tuples::tuple_element<I, sprout::tuples::tuple<Types...> >::type&&
tuple_get(sprout::tuples::tuple<Types...>&& t) SPROUT_NOEXCEPT { tuple_get(sprout::tuples::tuple<Types...>&& t) SPROUT_NOEXCEPT {
typedef typename sprout::tuples::tuple_element<I, sprout::tuples::tuple<Types...> >::type type; return sprout::tuples::detail::tuple_access<Types...>::template get<I>(sprout::move(t));
return SPROUT_FORWARD(type, sprout::tuples::tuple_get<I>(t));
} }
template<std::size_t I, typename... Types> template<std::size_t I, typename... Types>
inline SPROUT_CONSTEXPR typename sprout::tuples::tuple_element<I, sprout::tuples::tuple<Types...> >::type const& inline SPROUT_CONSTEXPR typename sprout::tuples::tuple_element<I, sprout::tuples::tuple<Types...> >::type const&
tuple_get(sprout::tuples::tuple<Types...> const& t) SPROUT_NOEXCEPT { tuple_get(sprout::tuples::tuple<Types...> const& t) SPROUT_NOEXCEPT {
return sprout::tuples::detail::get_helper<I>(t); return sprout::tuples::detail::tuple_access<Types...>::template get<I>(t);
} }
} // namespace tuples } // namespace tuples

27
sprout/tuple/tuple/tuple.hpp
View file

@ -11,6 +11,7 @@
#include <sprout/config.hpp> #include <sprout/config.hpp>
#include <sprout/utility/forward.hpp> #include <sprout/utility/forward.hpp>
#include <sprout/utility/pair/pair_decl.hpp> #include <sprout/utility/pair/pair_decl.hpp>
#include <sprout/type_traits/enabler_if.hpp>
#include <sprout/tuple/tuple/tuple_decl.hpp> #include <sprout/tuple/tuple/tuple_decl.hpp>
#include <sprout/tuple/flexibly_construct.hpp> #include <sprout/tuple/flexibly_construct.hpp>
@ -26,7 +27,7 @@ namespace sprout {
typename typename
> >
inline SPROUT_CONSTEXPR sprout::tuples::tuple<Types...>::tuple(sprout::pair<UType1, UType2> const& t) inline SPROUT_CONSTEXPR sprout::tuples::tuple<Types...>::tuple(sprout::pair<UType1, UType2> const& t)
: impl_type(t.first, t.second) : base_type(t.first, t.second)
{} {}
template<typename... Types> template<typename... Types>
template< template<
@ -34,7 +35,7 @@ namespace sprout {
typename typename
> >
inline SPROUT_CONSTEXPR sprout::tuples::tuple<Types...>::tuple(sprout::pair<UType1, UType2>&& t) inline SPROUT_CONSTEXPR sprout::tuples::tuple<Types...>::tuple(sprout::pair<UType1, UType2>&& t)
: impl_type(SPROUT_FORWARD(UType1, t.first), SPROUT_FORWARD(UType2, t.second)) : base_type(SPROUT_FORWARD(UType1, t.first), SPROUT_FORWARD(UType2, t.second))
{} {}
template<typename... Types> template<typename... Types>
@ -43,7 +44,12 @@ namespace sprout {
typename typename
> >
inline SPROUT_CONSTEXPR sprout::tuples::tuple<Types...>::tuple(sprout::tuples::flexibly_construct_t, sprout::pair<UType1, UType2> const& t) inline SPROUT_CONSTEXPR sprout::tuples::tuple<Types...>::tuple(sprout::tuples::flexibly_construct_t, sprout::pair<UType1, UType2> const& t)
: impl_type(t.first, t.second) : base_type(
sprout::tuples::flexibly_construct_t(),
sprout::index_range<0, 2>::make(),
sprout::index_range<2, sizeof...(Types)>::make(),
t.first, t.second
)
{} {}
template<typename... Types> template<typename... Types>
template< template<
@ -51,7 +57,12 @@ namespace sprout {
typename typename
> >
inline SPROUT_CONSTEXPR sprout::tuples::tuple<Types...>::tuple(sprout::tuples::flexibly_construct_t, sprout::pair<UType1, UType2>&& t) inline SPROUT_CONSTEXPR sprout::tuples::tuple<Types...>::tuple(sprout::tuples::flexibly_construct_t, sprout::pair<UType1, UType2>&& t)
: impl_type(SPROUT_FORWARD(UType1, t.first), SPROUT_FORWARD(UType2, t.second)) : base_type(
sprout::tuples::flexibly_construct_t(),
sprout::index_range<0, 2>::make(),
sprout::index_range<2, sizeof...(Types)>::make(),
SPROUT_FORWARD(UType1, t.first), SPROUT_FORWARD(UType2, t.second)
)
{} {}
// tuple assignment // tuple assignment
template<typename... Types> template<typename... Types>
@ -61,8 +72,8 @@ namespace sprout {
> >
inline SPROUT_CXX14_CONSTEXPR sprout::tuples::tuple<Types...>& inline SPROUT_CXX14_CONSTEXPR sprout::tuples::tuple<Types...>&
sprout::tuples::tuple<Types...>::operator=(sprout::pair<UType1, UType2> const& rhs) { sprout::tuples::tuple<Types...>::operator=(sprout::pair<UType1, UType2> const& rhs) {
sprout::tuples::detail::tuple_impl<0, Types...>::head(*this) = rhs.first; base_type::template get<0>(*this) = rhs.first;
sprout::tuples::detail::tuple_impl<1, Types...>::head(*this) = rhs.second; base_type::template get<1>(*this) = rhs.second;
return *this; return *this;
} }
template<typename... Types> template<typename... Types>
@ -72,8 +83,8 @@ namespace sprout {
> >
inline SPROUT_CXX14_CONSTEXPR sprout::tuples::tuple<Types...>& inline SPROUT_CXX14_CONSTEXPR sprout::tuples::tuple<Types...>&
sprout::tuples::tuple<Types...>::operator=(sprout::pair<UType1, UType2>&& rhs) { sprout::tuples::tuple<Types...>::operator=(sprout::pair<UType1, UType2>&& rhs) {
sprout::tuples::detail::tuple_impl<0, Types...>::head(*this) = sprout::move(rhs.first); base_type::template get<0>(*this) = sprout::move(rhs.first);
sprout::tuples::detail::tuple_impl<1, Types...>::head(*this) = sprout::move(rhs.second); base_type::template get<1>(*this) = sprout::move(rhs.second);
return *this; return *this;
} }
} // namespace tuples } // namespace tuples

473
sprout/tuple/tuple/tuple_decl.hpp
View file

@ -8,20 +8,22 @@
#ifndef SPROUT_TUPLE_TUPLE_TUPLE_DECL_HPP #ifndef SPROUT_TUPLE_TUPLE_TUPLE_DECL_HPP
#define SPROUT_TUPLE_TUPLE_TUPLE_DECL_HPP #define SPROUT_TUPLE_TUPLE_TUPLE_DECL_HPP
#include <utility>
#include <type_traits> #include <type_traits>
#include <tuple> #include <tuple>
#include <sprout/config.hpp> #include <sprout/config.hpp>
#include <sprout/workaround/std/cstddef.hpp> #include <sprout/workaround/std/cstddef.hpp>
#include <sprout/detail/predef.hpp> #include <sprout/detail/predef.hpp>
#include <sprout/detail/nil_base.hpp>
#include <sprout/index_tuple/metafunction.hpp> #include <sprout/index_tuple/metafunction.hpp>
#include <sprout/utility/forward.hpp> #include <sprout/utility/forward.hpp>
#include <sprout/utility/move.hpp> #include <sprout/utility/move.hpp>
#include <sprout/utility/swap.hpp> #include <sprout/utility/swap.hpp>
#include <sprout/utility/eat.hpp>
#include <sprout/utility/pack.hpp> #include <sprout/utility/pack.hpp>
#include <sprout/utility/pair/pair_fwd.hpp> #include <sprout/utility/pair/pair_fwd.hpp>
#include <sprout/type_traits/integral_constant.hpp> #include <sprout/type_traits/integral_constant.hpp>
#include <sprout/type_traits/is_convert_constructible.hpp> #include <sprout/type_traits/is_convert_constructible.hpp>
#include <sprout/type_traits/enabler_if.hpp>
#include <sprout/tpp/algorithm/all_of.hpp> #include <sprout/tpp/algorithm/all_of.hpp>
#include <sprout/tuple/tuple/tuple_fwd.hpp> #include <sprout/tuple/tuple/tuple_fwd.hpp>
#include <sprout/tuple/flexibly_construct.hpp> #include <sprout/tuple/flexibly_construct.hpp>
@ -29,244 +31,170 @@
namespace sprout { namespace sprout {
namespace tuples { namespace tuples {
namespace detail { namespace detail {
template<typename Dummy, typename T, T Value> template<typename... Types>
struct dummy_integral_constant class tuple_access;
: public sprout::integral_constant<T, Value>
{};
template<std::size_t Index, typename Head, bool IsEmpty> struct from_tuple_construct_t {};
class head_base; struct few_construct_t {};
// EBO disabled struct excess_construct_t {};
// template<std::size_t Index, typename Head>
// class head_base<Index, Head, true>
// : public Head
// {
// public:
// static SPROUT_CONSTEXPR Head& head(head_base& t) SPROUT_NOEXCEPT {
// return t;
// }
// static SPROUT_CONSTEXPR Head const& head(head_base const& t) SPROUT_NOEXCEPT {
// return t;
// }
// public:
// SPROUT_CONSTEXPR head_base()
// : Head()
// {}
// SPROUT_CONSTEXPR head_base(Head const& v)
// : Head(v)
// {}
// template<typename UHead>
// explicit SPROUT_CONSTEXPR head_base(UHead&& v)
// : Head(SPROUT_FORWARD(UHead, v))
// {}
// };
template<std::size_t Index, typename Head>
class head_base<Index, Head, true> {
public:
static SPROUT_CONSTEXPR Head& head(head_base& t) SPROUT_NOEXCEPT {
return t.head_;
}
static SPROUT_CONSTEXPR Head const& head(head_base const& t) SPROUT_NOEXCEPT {
return t.head_;
}
private:
Head head_;
public:
SPROUT_CONSTEXPR head_base()
: head_()
{}
SPROUT_CONSTEXPR head_base(Head const& v)
: head_(v)
{}
template<typename UHead>
explicit SPROUT_CONSTEXPR head_base(UHead&& v)
: head_(SPROUT_FORWARD(UHead, v))
{}
};
template<std::size_t Index, typename Head>
class head_base<Index, Head, false> {
public:
static SPROUT_CONSTEXPR Head& head(head_base& t) SPROUT_NOEXCEPT {
return t.head_;
}
static SPROUT_CONSTEXPR Head const& head(head_base const& t) SPROUT_NOEXCEPT {
return t.head_;
}
private:
Head head_;
public:
SPROUT_CONSTEXPR head_base()
: head_()
{}
SPROUT_CONSTEXPR head_base(Head const& v)
: head_(v)
{}
template<typename UHead>
explicit SPROUT_CONSTEXPR head_base(UHead&& v)
: head_(SPROUT_FORWARD(UHead, v))
{}
};
template<std::size_t Index, typename... Types> template<sprout::index_t I, typename IdentityType>
class tuple_impl; struct element_holder {
template<std::size_t Index>
class tuple_impl<Index> {
public: public:
template<typename...> typedef typename IdentityType::type value_type;
friend class tuple; private:
template<std::size_t, typename...> value_type value_;
friend class sprout::tuples::detail::tuple_impl; public:
explicit SPROUT_CONSTEXPR element_holder()
: value_()
{}
element_holder(element_holder const&) = default;
element_holder(element_holder&&) = default;
template<typename T>
explicit SPROUT_CONSTEXPR element_holder(T&& value)
: value_(SPROUT_FORWARD(T, value))
{}
protected: protected:
SPROUT_CXX14_CONSTEXPR void swap(tuple_impl&) SPROUT_NOEXCEPT {} static SPROUT_CONSTEXPR value_type&
public: get(element_holder& t) {
SPROUT_CONSTEXPR tuple_impl() SPROUT_DEFAULTED_DEFAULT_CONSTRUCTOR_DECL return t.value_;
template<typename... UTypes>
explicit SPROUT_CONSTEXPR tuple_impl(UTypes&&...) SPROUT_NOEXCEPT {}
tuple_impl(tuple_impl const&) = default;
tuple_impl(tuple_impl&&) = default;
template<typename... UTypes>
SPROUT_CONSTEXPR tuple_impl(tuple_impl<Index, UTypes...> const&) SPROUT_NOEXCEPT {}
template<typename... UTypes>
SPROUT_CONSTEXPR tuple_impl(tuple_impl<Index, UTypes...>&&) SPROUT_NOEXCEPT {}
SPROUT_CXX14_CONSTEXPR tuple_impl& operator=(tuple_impl const&) SPROUT_NOEXCEPT {
return *this;
} }
SPROUT_CXX14_CONSTEXPR tuple_impl& operator=(tuple_impl&&) SPROUT_NOEXCEPT { static SPROUT_CONSTEXPR value_type&&
return *this; get(element_holder&& t) {
return sprout::move(t.value_);
} }
template<typename... UTypes> static SPROUT_CONSTEXPR value_type const&
SPROUT_CXX14_CONSTEXPR tuple_impl& operator=(sprout::tuples::detail::tuple_impl<Index, UTypes...> const&) SPROUT_NOEXCEPT { get(element_holder const& t) {
return *this; return t.value_;
}
template<typename... UTypes>
SPROUT_CXX14_CONSTEXPR tuple_impl& operator=(sprout::tuples::detail::tuple_impl<Index, UTypes...>&&) SPROUT_NOEXCEPT {
return *this;
} }
}; };
template<std::size_t Index, typename Head, typename... Tail>
class tuple_impl<Index, Head, Tail...> template<typename IndexTuple, typename... Types>
: public sprout::tuples::detail::tuple_impl<Index + 1, Tail...> class tuple_base;
, private sprout::tuples::detail::head_base<Index, Head, std::is_empty<Head>::value> template<sprout::index_t... Indexes, typename... Types>
class tuple_base<sprout::index_tuple<Indexes...>, Types...>
: public sprout::tuples::detail::element_holder<Indexes, sprout::identity<Types> >...
{ {
template<typename IndexTuple, typename... UTypes>
friend class sprout::tuples::detail::tuple_base;
protected:
template<sprout::index_t I, typename IdentityType>
static IdentityType element_helper(sprout::tuples::detail::element_holder<I, IdentityType> const&);
template<sprout::index_t I>
static sprout::detail::nil_base element_helper(...);
template<std::size_t I>
struct element
: public sprout::identity<decltype(element_helper<I>(std::declval<tuple_base>()))>::type
{};
struct size
: public sprout::integral_constant<std::size_t, sizeof...(Types)>
{};
public: public:
template<typename...> SPROUT_CONSTEXPR tuple_base()
friend class tuple; : sprout::tuples::detail::element_holder<Indexes, sprout::identity<Types> >()...
template<std::size_t, typename...>
friend class sprout::tuples::detail::tuple_impl;
public:
typedef sprout::tuples::detail::tuple_impl<Index + 1, Tail...> inherited_type;
typedef sprout::tuples::detail::head_base<Index, Head, std::is_empty<Head>::value> base_type;
public:
static SPROUT_CONSTEXPR Head& head(tuple_impl& t) SPROUT_NOEXCEPT {
return base_type::head(t);
}
static SPROUT_CONSTEXPR Head const& head(tuple_impl const& t) SPROUT_NOEXCEPT {
return base_type::head(t);
}
static SPROUT_CONSTEXPR inherited_type& tail(tuple_impl& t) SPROUT_NOEXCEPT {
return t;
}
static SPROUT_CONSTEXPR inherited_type const& tail(tuple_impl const& t) SPROUT_NOEXCEPT {
return t;
}
public:
SPROUT_CXX14_CONSTEXPR void swap(tuple_impl& t)
SPROUT_NOEXCEPT_IF(
SPROUT_NOEXCEPT_EXPR(sprout::swap(head(std::declval<tuple_impl&>()), head(t)))
&& SPROUT_NOEXCEPT_EXPR(std::declval<inherited_type&>().swap(tail(t)))
)
{
sprout::swap(head(*this), head(t));
inherited_type::swap(tail(t));
}
public:
SPROUT_CONSTEXPR tuple_impl()
: inherited_type()
, base_type()
{} {}
explicit SPROUT_CONSTEXPR tuple_impl(Head const& h, Tail const&... tail)
: inherited_type(tail...)
, base_type(h)
{}
template<typename UHead, typename... UTail>
explicit SPROUT_CONSTEXPR tuple_impl(UHead&& h, UTail&&... tail)
: inherited_type(SPROUT_FORWARD(UTail, tail)...)
, base_type(SPROUT_FORWARD(UHead, h))
{}
tuple_impl(tuple_impl const&) = default;
#if SPROUT_GCC_IN_RANGE((4, 8, 0), (4, 8, 2))
tuple_impl(tuple_impl&&) = default;
#else
SPROUT_CONSTEXPR tuple_impl(tuple_impl&& t)
SPROUT_NOEXCEPT_IF(std::is_nothrow_move_constructible<Head>::value && std::is_nothrow_move_constructible<inherited_type>::value)
: inherited_type(sprout::move(tail(t)))
, base_type(SPROUT_FORWARD(Head, head(t)))
{}
#endif
template<typename... UTypes> template<typename... UTypes>
SPROUT_CONSTEXPR tuple_impl(tuple_impl<Index, UTypes...> const& t) explicit SPROUT_CONSTEXPR tuple_base(UTypes&&... args)
: inherited_type(sprout::tuples::detail::tuple_impl<Index, UTypes...>::tail(t)) : sprout::tuples::detail::element_holder<Indexes, sprout::identity<Types> >(SPROUT_FORWARD(UTypes, args))...
, base_type(sprout::tuples::detail::tuple_impl<Index, UTypes...>::head(t))
{} {}
template<typename UHead, typename... UTail> template<typename Tuple>
SPROUT_CONSTEXPR tuple_impl(tuple_impl<Index, UHead, UTail...>&& t) SPROUT_CONSTEXPR tuple_base(sprout::tuples::detail::from_tuple_construct_t, Tuple&& t)
: inherited_type(sprout::move(sprout::tuples::detail::tuple_impl<Index, UHead, UTail...>::tail(t))) : sprout::tuples::detail::element_holder<Indexes, sprout::identity<Types> >(std::decay<Tuple>::type::template get<Indexes>(SPROUT_FORWARD(Tuple, t)))...
, base_type(SPROUT_FORWARD(UHead, (sprout::tuples::detail::tuple_impl<Index, UHead, UTail...>::head(t))))
{} {}
SPROUT_CONSTEXPR tuple_impl(tuple_impl<Index> const&)
: inherited_type() template<
, base_type() typename... UTypes, sprout::index_t... Is, sprout::index_t... Js,
typename sprout::enabler_if<(sizeof...(Types) == sizeof...(UTypes))>::type = sprout::enabler
>
explicit SPROUT_CONSTEXPR tuple_base(sprout::tuples::flexibly_construct_t, sprout::index_tuple<Is...>, sprout::index_tuple<Js...>, UTypes&&... args)
: sprout::tuples::detail::element_holder<Indexes, sprout::identity<Types> >(SPROUT_FORWARD(UTypes, args))...
{} {}
SPROUT_CONSTEXPR tuple_impl(tuple_impl<Index>&&) template<
: inherited_type() typename... UTypes, sprout::index_t... Is, sprout::index_t... Js,
, base_type() typename sprout::enabler_if<(sizeof...(Types) > sizeof...(UTypes))>::type = sprout::enabler
>
explicit SPROUT_CONSTEXPR tuple_base(sprout::tuples::flexibly_construct_t, sprout::index_tuple<Is...>, sprout::index_tuple<Js...>, UTypes&&... args)
: sprout::tuples::detail::element_holder<Is, sprout::identity<typename sprout::pack_element<Is, Types...>::type> >(SPROUT_FORWARD(UTypes, args))...
, sprout::tuples::detail::element_holder<Js, sprout::identity<typename sprout::pack_element<Js, Types...>::type> >()...
{} {}
SPROUT_CXX14_CONSTEXPR tuple_impl& operator=(tuple_impl const& t) { template<
head(*this) = head(t); typename... UTypes, sprout::index_t... Is, sprout::index_t... Js,
tail(*this) = tail(t); typename sprout::enabler_if<(sizeof...(Types) < sizeof...(UTypes))>::type = sprout::enabler
return *this; >
explicit SPROUT_CONSTEXPR tuple_base(sprout::tuples::flexibly_construct_t, sprout::index_tuple<Is...>, sprout::index_tuple<Js...>, UTypes&&... args)
: sprout::tuples::detail::element_holder<Indexes, sprout::identity<Types> >(sprout::pack_get<Indexes>(SPROUT_FORWARD(UTypes, args)...))...
{}
template<
typename Tuple, sprout::index_t... Is, sprout::index_t... Js,
typename sprout::enabler_if<(sizeof...(Types) == std::decay<Tuple>::type::size::value)>::type = sprout::enabler
>
explicit SPROUT_CONSTEXPR tuple_base(sprout::tuples::detail::from_tuple_construct_t, sprout::tuples::flexibly_construct_t, sprout::index_tuple<Is...>, sprout::index_tuple<Js...>, Tuple&& t)
: sprout::tuples::detail::element_holder<Indexes, sprout::identity<Types> >(std::decay<Tuple>::type::template get<Indexes>(SPROUT_FORWARD(Tuple, t)))...
{}
template<
typename Tuple, sprout::index_t... Is, sprout::index_t... Js,
typename sprout::enabler_if<(sizeof...(Types) > std::decay<Tuple>::type::size::value)>::type = sprout::enabler
>
explicit SPROUT_CONSTEXPR tuple_base(sprout::tuples::detail::from_tuple_construct_t, sprout::tuples::flexibly_construct_t, sprout::index_tuple<Is...>, sprout::index_tuple<Js...>, Tuple&& t)
: sprout::tuples::detail::element_holder<Is, sprout::identity<typename sprout::pack_element<Is, Types...>::type> >(std::decay<Tuple>::type::template get<Is>(SPROUT_FORWARD(Tuple, t)))...
, sprout::tuples::detail::element_holder<Js, sprout::identity<typename sprout::pack_element<Js, Types...>::type> >()...
{}
template<
typename Tuple, sprout::index_t... Is, sprout::index_t... Js,
typename sprout::enabler_if<(sizeof...(Types) < std::decay<Tuple>::type::size::value)>::type = sprout::enabler
>
explicit SPROUT_CONSTEXPR tuple_base(sprout::tuples::detail::from_tuple_construct_t, sprout::tuples::flexibly_construct_t, sprout::index_tuple<Is...>, sprout::index_tuple<Js...>, Tuple&& t)
: sprout::tuples::detail::element_holder<Indexes, sprout::identity<Types> >(std::decay<Tuple>::type::template get<Indexes>(SPROUT_FORWARD(Tuple, t)))...
{}
private:
template<std::size_t I, typename IdentityType>
static SPROUT_CONSTEXPR typename element<I>::type&
get_impl(sprout::tuples::detail::element_holder<I, IdentityType>& value) {
return sprout::tuples::detail::element_holder<I, IdentityType>::get(value);
} }
SPROUT_CXX14_CONSTEXPR tuple_impl& operator=(tuple_impl&& t) template<std::size_t I, typename IdentityType>
SPROUT_NOEXCEPT_IF(std::is_nothrow_move_assignable<Head>::value && std::is_nothrow_move_assignable<inherited_type>::value) static SPROUT_CONSTEXPR typename element<I>::type&&
{ get_impl(sprout::tuples::detail::element_holder<I, IdentityType>&& value) {
head(*this) = SPROUT_FORWARD(Head, head(t)); return sprout::tuples::detail::element_holder<I, IdentityType>::get(sprout::move(value));
tail(*this) = sprout::move(tail(t));
return *this;
} }
template<typename... UTypes> template<std::size_t I, typename IdentityType>
SPROUT_CXX14_CONSTEXPR tuple_impl& operator=(sprout::tuples::detail::tuple_impl<Index, UTypes...> const& t) { static SPROUT_CONSTEXPR typename element<I>::type const&
head(*this) = sprout::tuples::detail::tuple_impl<Index, UTypes...>::head(t); get_impl(sprout::tuples::detail::element_holder<I, IdentityType> const& value) {
tail(*this) = sprout::tuples::detail::tuple_impl<Index, UTypes...>::tail(t); return sprout::tuples::detail::element_holder<I, IdentityType>::get(value);
return *this;
} }
template<typename UHead, typename... UTail> protected:
SPROUT_CXX14_CONSTEXPR tuple_impl& operator=(sprout::tuples::detail::tuple_impl<Index, UHead, UTail...>&& t) { template<std::size_t I>
head(*this) = SPROUT_FORWARD(UHead, (sprout::tuples::detail::tuple_impl<Index, UHead, UTail...>::head(t))); static SPROUT_CONSTEXPR typename element<I>::type&
tail(*this) = sprout::move(sprout::tuples::detail::tuple_impl<Index, UHead, UTail...>::tail(t)); get(tuple_base& t) {
return *this; return get_impl<I>(t);
} }
SPROUT_CXX14_CONSTEXPR tuple_impl& operator=(sprout::tuples::detail::tuple_impl<Index> const&) { template<std::size_t I>
*this = sprout::move(tuple_impl()); static SPROUT_CONSTEXPR typename element<I>::type&&
return *this; get(tuple_base&& t) {
return get_impl<I>(sprout::move(t));
} }
SPROUT_CXX14_CONSTEXPR tuple_impl& operator=(sprout::tuples::detail::tuple_impl<Index>&&) { template<std::size_t I>
*this = sprout::move(tuple_impl()); static SPROUT_CONSTEXPR typename element<I>::type const&
return *this; get(tuple_base const& t) {
return get_impl<I>(t);
} }
}; };
} // namespace detail } // namespace detail
//
// tuple
//
template<typename... Types> template<typename... Types>
class tuple class tuple
: public sprout::tuples::detail::tuple_impl<0, Types...> : public sprout::tuples::detail::tuple_base<typename sprout::make_index_tuple<sizeof...(Types)>::type, Types...>
{ {
template<typename... UTypes>
friend class sprout::tuples::tuple;
template<typename... UTypes>
friend class sprout::tuples::detail::tuple_access;
private: private:
typedef sprout::tuples::detail::tuple_impl<0, Types...> impl_type; typedef typename sprout::make_index_tuple<sizeof...(Types)>::type index_tuple_type;
typedef sprout::tuples::detail::tuple_base<index_tuple_type, Types...> base_type;
private: private:
template<typename TndexTuple, typename... Utypes> template<typename IndexTuple, typename... Utypes>
struct is_flexibly_convert_constructible_impl; struct is_flexibly_convert_constructible_impl;
template<sprout::index_t... Indexes, typename... Utypes> template<sprout::index_t... Indexes, typename... Utypes>
struct is_flexibly_convert_constructible_impl<sprout::index_tuple<Indexes...>, Utypes...> struct is_flexibly_convert_constructible_impl<sprout::index_tuple<Indexes...>, Utypes...>
@ -278,7 +206,7 @@ namespace sprout {
> >
{}; {};
template<typename TndexTuple, typename... Utypes> template<typename IndexTuple, typename... Utypes>
struct is_flexibly_assignable_impl; struct is_flexibly_assignable_impl;
template<sprout::index_t... Indexes, typename... Utypes> template<sprout::index_t... Indexes, typename... Utypes>
struct is_flexibly_assignable_impl<sprout::index_tuple<Indexes...>, Utypes...> struct is_flexibly_assignable_impl<sprout::index_tuple<Indexes...>, Utypes...>
@ -353,13 +281,30 @@ namespace sprout {
struct is_clvref_fixedly_assignable struct is_clvref_fixedly_assignable
: public is_fixedly_assignable<UTypes const&...> : public is_fixedly_assignable<UTypes const&...>
{}; {};
private:
template<sprout::index_t... Indexes>
SPROUT_CXX14_CONSTEXPR void
swap_impl(tuple& other, sprout::index_tuple<Indexes...>) {
sprout::eat((sprout::swap(base_type::template get<Indexes>(*this), base_type::template get<Indexes>(other)), 0)...);
}
template<typename Tuple>
SPROUT_CXX14_CONSTEXPR void
assign(Tuple&& t) {
assign_impl(SPROUT_FORWARD(Tuple, t), index_tuple_type());
}
template<typename Tuple, sprout::index_t... Indexes>
SPROUT_CXX14_CONSTEXPR void
assign_impl(Tuple&& t, sprout::index_tuple<Indexes...>) {
typedef typename std::decay<Tuple>::type type;
sprout::eat((sprout::eat(base_type::template get<Indexes>(*this) = sprout::move(type::template get<Indexes>(SPROUT_FORWARD(Tuple, t)))), 0)...);
}
public: public:
// tuple construction // tuple construction
SPROUT_CONSTEXPR tuple() SPROUT_CONSTEXPR tuple()
: impl_type() : base_type()
{} {}
explicit SPROUT_CONSTEXPR tuple(Types const&... elements) explicit SPROUT_CONSTEXPR tuple(Types const&... elements)
: impl_type(elements...) : base_type(elements...)
{} {}
template< template<
typename... UTypes, typename... UTypes,
@ -368,7 +313,7 @@ namespace sprout {
>::type >::type
> >
explicit SPROUT_CONSTEXPR tuple(UTypes&&... elements) explicit SPROUT_CONSTEXPR tuple(UTypes&&... elements)
: impl_type(SPROUT_FORWARD(UTypes, elements)...) : base_type(SPROUT_FORWARD(UTypes, elements)...)
{} {}
tuple(tuple const&) = default; tuple(tuple const&) = default;
tuple(tuple&&) = default; tuple(tuple&&) = default;
@ -379,7 +324,7 @@ namespace sprout {
>::type >::type
> >
SPROUT_CONSTEXPR tuple(sprout::tuples::tuple<UTypes...> const& t) SPROUT_CONSTEXPR tuple(sprout::tuples::tuple<UTypes...> const& t)
: impl_type(static_cast<sprout::tuples::detail::tuple_impl<0, UTypes...> const&>(t)) : base_type(sprout::tuples::detail::from_tuple_construct_t(), t)
{} {}
template< template<
typename... UTypes, typename... UTypes,
@ -388,7 +333,7 @@ namespace sprout {
>::type >::type
> >
SPROUT_CONSTEXPR tuple(sprout::tuples::tuple<UTypes...>&& t) SPROUT_CONSTEXPR tuple(sprout::tuples::tuple<UTypes...>&& t)
: impl_type(static_cast<sprout::tuples::detail::tuple_impl<0, UTypes...>&&>(t)) : base_type(sprout::tuples::detail::from_tuple_construct_t(), sprout::move(t))
{} {}
template< template<
typename UType1, typename UType2, typename UType1, typename UType2,
@ -404,7 +349,6 @@ namespace sprout {
>::type >::type
> >
SPROUT_CONSTEXPR tuple(sprout::pair<UType1, UType2>&& t); SPROUT_CONSTEXPR tuple(sprout::pair<UType1, UType2>&& t);
template< template<
typename... UTypes, typename... UTypes,
typename = typename std::enable_if< typename = typename std::enable_if<
@ -412,7 +356,12 @@ namespace sprout {
>::type >::type
> >
explicit SPROUT_CONSTEXPR tuple(sprout::tuples::flexibly_construct_t, UTypes&&... elements) explicit SPROUT_CONSTEXPR tuple(sprout::tuples::flexibly_construct_t, UTypes&&... elements)
: impl_type(SPROUT_FORWARD(UTypes, elements)...) : base_type(
sprout::tuples::flexibly_construct_t(),
sprout::index_range<0, sizeof...(UTypes)>::make(),
sprout::index_range<sizeof...(UTypes), sizeof...(Types)>::make(),
SPROUT_FORWARD(UTypes, elements)...
)
{} {}
template< template<
typename... UTypes, typename... UTypes,
@ -421,8 +370,14 @@ namespace sprout {
>::type >::type
> >
SPROUT_CONSTEXPR tuple(sprout::tuples::flexibly_construct_t, sprout::tuples::tuple<UTypes...> const& t) SPROUT_CONSTEXPR tuple(sprout::tuples::flexibly_construct_t, sprout::tuples::tuple<UTypes...> const& t)
: impl_type(static_cast<sprout::tuples::detail::tuple_impl<0, UTypes...> const&>(t)) : base_type(
sprout::tuples::detail::from_tuple_construct_t(), sprout::tuples::flexibly_construct_t(),
sprout::index_range<0, sizeof...(UTypes)>::make(),
sprout::index_range<sizeof...(UTypes), sizeof...(Types)>::make(),
t
)
{} {}
template< template<
typename... UTypes, typename... UTypes,
typename = typename std::enable_if< typename = typename std::enable_if<
@ -430,7 +385,12 @@ namespace sprout {
>::type >::type
> >
SPROUT_CONSTEXPR tuple(sprout::tuples::flexibly_construct_t, sprout::tuples::tuple<UTypes...>&& t) SPROUT_CONSTEXPR tuple(sprout::tuples::flexibly_construct_t, sprout::tuples::tuple<UTypes...>&& t)
: impl_type(static_cast<sprout::tuples::detail::tuple_impl<0, UTypes...>&&>(t)) : base_type(
sprout::tuples::detail::from_tuple_construct_t(), sprout::tuples::flexibly_construct_t(),
sprout::index_range<0, sizeof...(UTypes)>::make(),
sprout::index_range<sizeof...(UTypes), sizeof...(Types)>::make(),
sprout::move(t)
)
{} {}
template< template<
typename UType1, typename UType2, typename UType1, typename UType2,
@ -447,14 +407,16 @@ namespace sprout {
> >
SPROUT_CONSTEXPR tuple(sprout::tuples::flexibly_construct_t, sprout::pair<UType1, UType2>&& t); SPROUT_CONSTEXPR tuple(sprout::tuples::flexibly_construct_t, sprout::pair<UType1, UType2>&& t);
// tuple assignment // tuple assignment
SPROUT_CXX14_CONSTEXPR tuple& operator=(tuple const& rhs) { SPROUT_CXX14_CONSTEXPR tuple&
static_cast<impl_type&>(*this) = rhs; operator=(tuple const& rhs) {
assign(rhs);
return *this; return *this;
} }
SPROUT_CXX14_CONSTEXPR tuple& operator=(tuple&& rhs) SPROUT_CXX14_CONSTEXPR tuple&
operator=(tuple&& rhs)
SPROUT_NOEXCEPT_IF(sprout::tpp::all_of<std::is_nothrow_move_assignable<Types>...>::value) SPROUT_NOEXCEPT_IF(sprout::tpp::all_of<std::is_nothrow_move_assignable<Types>...>::value)
{ {
static_cast<impl_type&>(*this) = sprout::move(rhs); assign(sprout::move(rhs));
return *this; return *this;
} }
template< template<
@ -463,8 +425,9 @@ namespace sprout {
sizeof...(Types) == sizeof...(UTypes) && sprout::tpp::all_of<std::is_assignable<Types&, UTypes const&>...>::value sizeof...(Types) == sizeof...(UTypes) && sprout::tpp::all_of<std::is_assignable<Types&, UTypes const&>...>::value
>::type >::type
> >
SPROUT_CXX14_CONSTEXPR tuple& operator=(sprout::tuples::tuple<UTypes...> const& rhs) { SPROUT_CXX14_CONSTEXPR tuple&
static_cast<impl_type&>(*this) = rhs; operator=(sprout::tuples::tuple<UTypes...> const& rhs) {
assign(rhs);
return *this; return *this;
} }
template< template<
@ -473,8 +436,9 @@ namespace sprout {
sizeof...(Types) == sizeof...(UTypes) && sprout::tpp::all_of<std::is_assignable<Types&, UTypes&&>...>::value sizeof...(Types) == sizeof...(UTypes) && sprout::tpp::all_of<std::is_assignable<Types&, UTypes&&>...>::value
>::type >::type
> >
SPROUT_CXX14_CONSTEXPR tuple& operator=(sprout::tuples::tuple<UTypes...>&& rhs) { SPROUT_CXX14_CONSTEXPR tuple&
static_cast<impl_type&>(*this) = sprout::move(rhs); operator=(sprout::tuples::tuple<UTypes...>&& rhs) {
assign(sprout::move(rhs));
return *this; return *this;
} }
template< template<
@ -492,29 +456,37 @@ namespace sprout {
> >
SPROUT_CXX14_CONSTEXPR tuple& operator=(sprout::pair<UType1, UType2>&& rhs); SPROUT_CXX14_CONSTEXPR tuple& operator=(sprout::pair<UType1, UType2>&& rhs);
// tuple swap // tuple swap
SPROUT_CXX14_CONSTEXPR void swap(tuple& other) SPROUT_CXX14_CONSTEXPR void
swap(tuple& other)
SPROUT_NOEXCEPT_IF(sprout::tpp::all_of_c<SPROUT_NOEXCEPT_EXPR(sprout::swap(std::declval<Types&>(), std::declval<Types&>()))...>::value) SPROUT_NOEXCEPT_IF(sprout::tpp::all_of_c<SPROUT_NOEXCEPT_EXPR(sprout::swap(std::declval<Types&>(), std::declval<Types&>()))...>::value)
{ {
impl_type::swap(other); swap_impl(other, index_tuple_type());
} }
}; };
template<> template<>
class tuple<> { class tuple<> {
template<typename... UTypes>
friend class sprout::tuples::detail::tuple_access;
protected:
template<std::size_t I>
struct element
: public sprout::detail::nil_base
{};
public: public:
// tuple construction // tuple construction
SPROUT_CONSTEXPR tuple() SPROUT_DEFAULTED_DEFAULT_CONSTRUCTOR_DECL SPROUT_CONSTEXPR tuple() SPROUT_DEFAULTED_DEFAULT_CONSTRUCTOR_DECL
tuple(tuple const&) = default; tuple(tuple const&) = default;
tuple(tuple&&) = default; tuple(tuple&&) = default;
template<typename... UTypes> template<typename... UTypes>
explicit SPROUT_CONSTEXPR tuple(sprout::tuples::flexibly_construct_t, UTypes&&...) {} explicit SPROUT_CONSTEXPR tuple(sprout::tuples::flexibly_construct_t, UTypes&&...) SPROUT_NOEXCEPT {}
template<typename... UTypes> template<typename... UTypes>
SPROUT_CONSTEXPR tuple(sprout::tuples::flexibly_construct_t, sprout::tuples::tuple<UTypes...> const&) {} SPROUT_CONSTEXPR tuple(sprout::tuples::flexibly_construct_t, sprout::tuples::tuple<UTypes...> const&) SPROUT_NOEXCEPT {}
template<typename... UTypes> template<typename... UTypes>
SPROUT_CONSTEXPR tuple(sprout::tuples::flexibly_construct_t, sprout::tuples::tuple<UTypes...>&&) {} SPROUT_CONSTEXPR tuple(sprout::tuples::flexibly_construct_t, sprout::tuples::tuple<UTypes...>&&) SPROUT_NOEXCEPT {}
template<typename UType1, typename UType2> template<typename UType1, typename UType2>
SPROUT_CONSTEXPR tuple(sprout::tuples::flexibly_construct_t, sprout::pair<UType1, UType2> const&) {} SPROUT_CONSTEXPR tuple(sprout::tuples::flexibly_construct_t, sprout::pair<UType1, UType2> const&) SPROUT_NOEXCEPT {}
template<typename UType1, typename UType2> template<typename UType1, typename UType2>
SPROUT_CONSTEXPR tuple(sprout::tuples::flexibly_construct_t, sprout::pair<UType1, UType2>&&) {} SPROUT_CONSTEXPR tuple(sprout::tuples::flexibly_construct_t, sprout::pair<UType1, UType2>&&) SPROUT_NOEXCEPT {}
// tuple swap // tuple swap
SPROUT_CXX14_CONSTEXPR void swap(tuple&) SPROUT_NOEXCEPT {} SPROUT_CXX14_CONSTEXPR void swap(tuple&) SPROUT_NOEXCEPT {}
}; };
@ -529,6 +501,36 @@ namespace sprout {
{ {
lhs.swap(rhs); lhs.swap(rhs);
} }
namespace detail {
template<typename... Types>
class tuple_access {
public:
template<std::size_t I>
struct element
: public sprout::tuples::tuple<Types...>::template element<I>
{};
struct size
: public sprout::integral_constant<std::size_t, sizeof...(Types)>
{};
public:
template<std::size_t I>
static SPROUT_CONSTEXPR typename element<I>::type&
get(sprout::tuples::tuple<Types...>& t) {
return sprout::tuples::tuple<Types...>::template get<I>(t);
}
template<std::size_t I>
static SPROUT_CONSTEXPR typename element<I>::type&&
get(sprout::tuples::tuple<Types...>&& t) {
return sprout::tuples::tuple<Types...>::template get<I>(sprout::move(t));
}
template<std::size_t I>
static SPROUT_CONSTEXPR typename element<I>::type const&
get(sprout::tuples::tuple<Types...> const& t) {
return sprout::tuples::tuple<Types...>::template get<I>(t);
}
};
} // namespace detail
} // namespace tuples } // namespace tuples
using sprout::tuples::tuple; using sprout::tuples::tuple;
@ -553,7 +555,8 @@ namespace std {
// //
template<std::size_t I, typename... Types> template<std::size_t I, typename... Types>
struct tuple_element<I, sprout::tuples::tuple<Types...> > struct tuple_element<I, sprout::tuples::tuple<Types...> >
: public sprout::pack_element<I, Types...> // : public sprout::pack_element<I, Types...>
: public sprout::tuples::detail::tuple_access<Types...>::template element<I>
{}; {};
#if defined(__clang__) #if defined(__clang__)
# pragma clang diagnostic pop # pragma clang diagnostic pop

6
sprout/type/type_tuple.hpp
View file

@ -10,6 +10,7 @@
#include <sprout/config.hpp> #include <sprout/config.hpp>
#include <sprout/workaround/std/cstddef.hpp> #include <sprout/workaround/std/cstddef.hpp>
#include <sprout/type_traits/identity.hpp>
#include <sprout/type/iterator.hpp> #include <sprout/type/iterator.hpp>
#include <sprout/type/iterator/index_iterator.hpp> #include <sprout/type/iterator/index_iterator.hpp>
#include <sprout/type/type_tuple_decl.hpp> #include <sprout/type/type_tuple_decl.hpp>
@ -25,6 +26,11 @@ namespace sprout {
typedef type_tuple type; typedef type_tuple type;
typedef sprout::types::index_iterator<type_tuple, 0> begin; typedef sprout::types::index_iterator<type_tuple, 0> begin;
typedef sprout::types::index_iterator<type_tuple, sizeof...(Types)> end; typedef sprout::types::index_iterator<type_tuple, sizeof...(Types)> end;
public:
template<typename... UTypes>
struct apply
: public sprout::identity<type_tuple<Types..., UTypes...> >
{};
public: public:
SPROUT_STATIC_CONSTEXPR std::size_t static_size = sizeof...(Types); SPROUT_STATIC_CONSTEXPR std::size_t static_size = sizeof...(Types);
}; };

21
sprout/utility/eat.hpp Normal file
View file

@ -0,0 +1,21 @@
/*=============================================================================
Copyright (c) 2011-2014 Bolero MURAKAMI
https://github.com/bolero-MURAKAMI/Sprout
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)
=============================================================================*/
#ifndef SPROUT_UTILITY_EAT_HPP
#define SPROUT_UTILITY_EAT_HPP
#include <sprout/config.hpp>
namespace sprout {
//
// eat
//
inline SPROUT_CXX14_CONSTEXPR void
eat(...) SPROUT_NOEXCEPT {}
} // namespace sprout
#endif // #ifndef SPROUT_UTILITY_EAT_HPP

1
sprout/utility/operation.hpp
View file

@ -15,5 +15,6 @@
#include <sprout/utility/swap.hpp> #include <sprout/utility/swap.hpp>
#include <sprout/utility/exchange.hpp> #include <sprout/utility/exchange.hpp>
#include <sprout/utility/unmove.hpp> #include <sprout/utility/unmove.hpp>
#include <sprout/utility/eat.hpp>
#endif // #ifndef SPROUT_UTILITY_OPERATION_HPP #endif // #ifndef SPROUT_UTILITY_OPERATION_HPP