I'm pretty sure I've never seen "do { ... } if ...;" or similar. That is so pointlessly obfuscated that it is something I would avoid (such as in a coding standard) even more than I would avoid bare blocks as loops (which I also find can always be replaced with better alternatives). So I still jump to "loop" when I see ";\ndo {\n" and I will continue to. I also still don't jump to "loop" when I see a lone open bracket (and nobody should since most of the time they'd be wrong anyway).

So a do loop is clearer than a bare block "loop". True, there is no guarantee against somebody writing something that clearly looks like a loop but is in fact an unclear and uselessly obfuscated non-loop. That isn't a concern when trying to decide how to make code easy to maintain. If you've got "do { ... } if ...;" in your code, then you've got worse problems to deal with first.

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