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add conversion to atd classes

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bolero-MURAKAMI 2016-02-21 16:49:14 +09:00
parent 5bf0907974
commit 60362f5419
3 changed files with 29 additions and 2 deletions
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16
sprout/tuple/tuple/tuple_decl.hpp
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@ -22,6 +22,7 @@
#include <sprout/utility/pack.hpp>
#include <sprout/utility/pair/pair_fwd.hpp>
#include <sprout/type_traits/integral_constant.hpp>
#include <sprout/type_traits/is_nothrow_copy_constructible.hpp>
#include <sprout/type_traits/is_convert_constructible.hpp>
#include <sprout/type_traits/enabler_if.hpp>
#include <sprout/tpp/algorithm/all_of.hpp>
@ -298,6 +299,11 @@ namespace sprout {
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)...);
}
template<sprout::index_t... Indexes>
SPROUT_CONSTEXPR std::tuple<Types...>
to_std_tuple(sprout::index_tuple<Indexes...>) {
return std::tuple<Types...>(base_type::template get<Indexes>(*this)...);
}
public:
// tuple construction
SPROUT_CONSTEXPR tuple()
@ -462,6 +468,12 @@ namespace sprout {
{
swap_impl(other, index_tuple_type());
}
SPROUT_EXPLICIT_CONVERSION SPROUT_CONSTEXPR operator std::tuple<Types...>() const
SPROUT_NOEXCEPT_IF(sprout::tpp::all_of<sprout::is_nothrow_copy_constructible<Types>...>::value)
{
return to_std_tuple(index_tuple_type());;
}
};
template<>
class tuple<> {
@ -489,6 +501,10 @@ namespace sprout {
SPROUT_CONSTEXPR tuple(sprout::tuples::flexibly_construct_t, sprout::pair<UType1, UType2>&&) SPROUT_NOEXCEPT {}
// tuple swap
SPROUT_CXX14_CONSTEXPR void swap(tuple&) SPROUT_NOEXCEPT {}
SPROUT_CONSTEXPR operator std::tuple<>() const SPROUT_NOEXCEPT {
return std::tuple<>();;
}
};
//