Comment on Bit-permuting 16 u32s at once with AVX-512parentComments−flohofwoe1yDouble underscores are reserved by the C standard (https://devblogs.microsoft.com/oldnewthing/20230109-00/?p=10...), so it's a measure to avoid collisions with user-defined types.
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Double underscores are reserved by the C standard (https://devblogs.microsoft.com/oldnewthing/20230109-00/?p=10...), so it's a measure to avoid collisions with user-defined types.