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add SFINAE: tuple flexibly construction

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This commit is contained in:
bolero-MURAKAMI 2013-03-29 19:19:40 +09:00
parent f905d1f02a
commit a1c119a9bb
3 changed files with 107 additions and 33 deletions
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39
sprout/tuple/tuple/tuple.hpp
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@ -69,32 +69,47 @@ namespace sprout {
typename
>
inline SPROUT_CONSTEXPR sprout::tuples::tuple<Types...>::tuple(sprout::pair<UTypes...>&& t)
: impl_type(sprout::move(t.first), sprout::move(t.second))
: impl_type(sprout::forward<typename sprout::pair<UTypes...>::first_type>(t.first), sprout::forward<typename sprout::pair<UTypes...>::second_type>(t.second))
{}
template<typename... Types>
template<typename... UTypes>
template<
typename... UTypes,
typename
>
inline SPROUT_CONSTEXPR sprout::tuples::tuple<Types...>::tuple(sprout::tuples::flexibly_construct_t, UTypes&&... elements)
: impl_type(sprout::forward<UTypes>(elements)...)
{}
template<typename... Types>
template<typename... UTypes>
template<
typename... UTypes,
typename
>
inline SPROUT_CONSTEXPR sprout::tuples::tuple<Types...>::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))
{}
template<typename... Types>
template<typename... UTypes>
template<
typename... UTypes,
typename
>
inline SPROUT_CONSTEXPR sprout::tuples::tuple<Types...>::tuple(sprout::tuples::flexibly_construct_t, sprout::tuples::tuple<UTypes...>&& t)
: impl_type(static_cast<sprout::tuples::detail::tuple_impl<0, UTypes...>&&>(t))
{}
template<typename... Types>
template<typename... UTypes>
template<
typename... UTypes,
typename
>
inline SPROUT_CONSTEXPR sprout::tuples::tuple<Types...>::tuple(sprout::tuples::flexibly_construct_t, sprout::pair<UTypes...> const& t)
: impl_type(t.first, t.second)
{}
template<typename... Types>
template<typename... UTypes>
template<
typename... UTypes,
typename
>
inline SPROUT_CONSTEXPR sprout::tuples::tuple<Types...>::tuple(sprout::tuples::flexibly_construct_t, sprout::pair<UTypes...>&& t)
: impl_type(sprout::move(t.first), sprout::move(t.second))
: impl_type(sprout::forward<typename sprout::pair<UTypes...>::first_type>(t.first), sprout::forward<typename sprout::pair<UTypes...>::second_type>(t.second))
{}
// tuple assignment
template<typename... Types>
@ -110,13 +125,19 @@ namespace sprout {
return *this;
}
template<typename... Types>
template<typename... UTypes>
template<
typename... UTypes,
typename
>
sprout::tuples::tuple<Types...>& sprout::tuples::tuple<Types...>::operator=(sprout::tuples::tuple<UTypes...> const& rhs) {
static_cast<impl_type&>(*this) = rhs;
return *this;
}
template<typename... Types>
template<typename... UTypes>
template<
typename... UTypes,
typename
>
sprout::tuples::tuple<Types...>& sprout::tuples::tuple<Types...>::operator=(sprout::tuples::tuple<UTypes...>&& rhs) {
static_cast<impl_type&>(*this) = sprout::move(rhs);
return *this;