<optional>: Extend compiler bug workaround to MSVC
#5407
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davidmrdavid
approved these changes
Apr 17, 2025
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I'm mirroring this to the MSVC-internal repo - please notify me if any further changes are pushed. |
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#5369 revealed VSO-2444237 "[RWC][prod/fe][std:c++latest][Regression] LLVM failed with Assertion failed:
ParseTree::Utility::SigStack::sigStack.size() == 1".@xiangfan-ms tracked this down to the introduction of
_Derived_from_optionaland reduced it to a library-free repro. The compiler is having trouble with the lambda's templated function call operator.To unblock our Real World Code test suite, we should extend the workaround we're currently using for EDG to also cover MSVC.