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protocolbuffers / protobuf

Protocol Buffers - Google's data interchange format
http://protobuf.dev
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Add a comment that `is_cleared` is always false for repeated fields. #19314

Closed copybara-service[bot] closed 2 days ago

copybara-service[bot] commented 3 days ago

Add a comment that is_cleared is always false for repeated fields.

Also added a test to verify that no uninitialized access happens in NumExtensions.

Creation Extension() does zero initialization. Illustration: https://gcc.godbolt.org/z/37j8hrb9T