Is default member init of bit-fields officially supported/encouraged?

Xianzhu Wang

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Oct 12, 2022, 3:47:11 PM10/12/22

to cxx

Hi,

Tricium suggested default member init for some bit-fields. It's great if this feature is officially supported, but I don't see it in this doc. Can we use this feature now, or is it just a bug of clang-tidy?

Thanks,

Xianzhu

David Benjamin

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Oct 12, 2022, 3:49:10 PM10/12/22

to Xianzhu Wang, cxx

That might be a bug? I thought that only worked in C++20. Or did Clang backport it to older versions?

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Avi Drissman

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Oct 12, 2022, 3:51:59 PM10/12/22

to David Benjamin, Xianzhu Wang, cxx

Default member init for bitfields does only work in C++20. I think it got rolled into ClangTidy/modernize-use-default-member-init without concern for availability.

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Xianzhu Wang

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Oct 12, 2022, 4:24:30 PM10/12/22

to cxx, a...@google.com, Xianzhu Wang, cxx, David Benjamin

Filed crbug.com/1374022.

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