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by orlp
1493 days ago
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Right, you resolve the ambiguity of the wraparound because we know that logically the read_idx (which I guess is better called pop_idx) can never exceed the write_idx. It does fail if bufsize equals 2^w where w is the width of your index type, but eh, that's fair enough. You still 'waste' a slot but it's in the address space rather than physically. |
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