<xmemory>: _Uninitialized_copy doesn't assign, it constructs
#3028
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... so the `memmove` optimization should check `_Bitcopy_constructible` and not `_Bitcopy_assignable`. Fixes VSO-1591034, fixes VSO-1590866.
CaseyCarter
commented
Aug 11, 2022
StephanTLavavej
approved these changes
Aug 11, 2022
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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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Thanks for investigating and fixing this bug! 🐞 🕵️ 🛠️ |
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... so the
memmoveoptimization should check_Bitcopy_constructibleand not_Bitcopy_assignable.Fixes VSO-1591034/AB#1591034, fixes VSO-1590866/AB#1590866.
Credit to StephanTLavavej for the minimal repro.