[PATCH] D31513: [Sema] Add __is_aggregate type-trait and implement LWG 2015

[Aaron Ballman via Phabricator via cfe-commits]

aaron.ballman added inline comments.


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Comment at: docs/LanguageExtensions.rst:996
 * ``__is_abstract`` (GNU, Microsoft)
+* ``__is_aggregate`` (GNU, Microsoft)
 * ``__is_base_of`` (GNU, Microsoft)
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Has Microsoft already implemented this? If not, do we want to wait for them before claiming they implement it as well?


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Comment at: lib/Sema/SemaExprCXX.cpp:4234
+    // support aggregate initialization. GCC mirrors this behavior for vectors
+    // but not _Complex.
+    return T->isAggregateType() || T->isVectorType() || T->isExtVectorType() ||
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Is there benefit to diverging from GCC's behavior here for _Complex types?


https://reviews.llvm.org/D31513