[PATCH] D68364: Implement C++20's P0784 (More constexpr containers)

[Jonathan Wakely via Phabricator via cfe-commits]

jwakely added inline comments.


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Comment at: libcxx/include/new:243
 # ifdef _LIBCPP_HAS_NO_BUILTIN_OVERLOADED_OPERATOR_NEW_DELETE
     return ::operator new(__size, __align_val);
 # else
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jwakely wrote:
> ldionne wrote:
> > This breaks GCC (as of GCC 9). I don't know what mechanism GCC uses to tie into constexpr allocation, so I don't know what the fix is.
> > 
> > @jwakely Can you throw some hints at me?
> GCC 9 doesn't support constexpr allocation at all.
GCC 9 doesn't support constexpr allocation at all. You can use `__cpp_constexpr_dynamic_alloc` to test for the feature.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D68364/new/

https://reviews.llvm.org/D68364