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AK: Make smart pointer factories work with aggregates
Aggregate initialization with brace-enclosed parameters is a [C++20 feature][1] not yet implemented by Clang. This caused compile errors if we tried to use the factory functions to create smart pointers to aggregates. As a (temporary) fix, [the LWG's previously proposed solution][2] is implemented by this commit. Now, wherever it's not possible to direct-initialize, aggregate initialization is performed. [1]: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2019/p0960r3.html [2]: http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-active.html#2089
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5 changed files with 37 additions and 4 deletions
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@ -443,6 +443,10 @@ auto declval() -> T;
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template<typename T, typename... Args>
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inline constexpr bool IsCallableWithArguments = requires(T t) { t(declval<Args>()...); };
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template<typename T, typename... Args>
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inline constexpr bool IsConstructible = requires { ::new T(declval<Args>()...); };
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}
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using AK::Detail::AddConst;
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using AK::Detail::Conditional;
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@ -459,6 +463,7 @@ using AK::Detail::IsBaseOf;
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using AK::Detail::IsCallableWithArguments;
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using AK::Detail::IsClass;
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using AK::Detail::IsConst;
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using AK::Detail::IsConstructible;
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using AK::Detail::IsEnum;
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using AK::Detail::IsFloatingPoint;
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using AK::Detail::IsFunction;
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