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@ -169,9 +169,33 @@ constexpr bool ShouldAnyUseBase() { |
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} |
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template <typename T, typename V> |
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using TupleMoveConstructible = typename std::conditional< |
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std::is_reference<T>::value, std::is_convertible<V, T>, |
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std::is_constructible<T, V&&>>::type; |
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using TupleElementMoveConstructible = |
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typename std::conditional<std::is_reference<T>::value, |
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std::is_convertible<V, T>, |
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std::is_constructible<T, V&&>>::type; |
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template <bool SizeMatches, class T, class... Vs> |
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struct TupleMoveConstructible : std::false_type {}; |
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template <class... Ts, class... Vs> |
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struct TupleMoveConstructible<true, CompressedTuple<Ts...>, Vs...> |
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: std::integral_constant< |
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bool, absl::conjunction< |
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TupleElementMoveConstructible<Ts, Vs&&>...>::value> {}; |
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template <typename T> |
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struct compressed_tuple_size; |
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template <typename... Es> |
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struct compressed_tuple_size<CompressedTuple<Es...>> |
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: public std::integral_constant<std::size_t, sizeof...(Es)> {}; |
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template <class T, class... Vs> |
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struct TupleItemsMoveConstructible |
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: std::integral_constant< |
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bool, TupleMoveConstructible<compressed_tuple_size<T>::value == |
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sizeof...(Vs), |
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T, Vs...>::value> {}; |
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} // namespace internal_compressed_tuple
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@ -217,17 +241,18 @@ class ABSL_INTERNAL_COMPRESSED_TUPLE_DECLSPEC CompressedTuple |
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explicit constexpr CompressedTuple(const Ts&... base) |
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: CompressedTuple::CompressedTupleImpl(absl::in_place, base...) {} |
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template <typename... Vs, |
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template <typename First, typename... Vs, |
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absl::enable_if_t< |
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absl::conjunction< |
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// Ensure we are not hiding default copy/move constructors.
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absl::negation<std::is_same<void(CompressedTuple), |
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void(absl::decay_t<Vs>...)>>, |
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internal_compressed_tuple::TupleMoveConstructible< |
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Ts, Vs&&>...>::value, |
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void(absl::decay_t<First>)>>, |
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internal_compressed_tuple::TupleItemsMoveConstructible< |
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CompressedTuple<Ts...>, First, Vs...>>::value, |
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bool> = true> |
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explicit constexpr CompressedTuple(Vs&&... base) |
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explicit constexpr CompressedTuple(First&& first, Vs&&... base) |
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: CompressedTuple::CompressedTupleImpl(absl::in_place, |
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absl::forward<First>(first), |
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absl::forward<Vs>(base)...) {} |
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template <int I> |
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