Blush. You're right, at least in that == produces 0 or 1. I was sure it had been "ported" to produce _Bool when that was added (which then of course automatica

Blush. You're right, at least in that == produces 0 or 1. I was sure it had been "ported" to produce _Bool when that was added (which then of course automatically converts to 0 or 1 as needed), but that seems not to be the case. I still think the ANDs should be boolean (i.e. &&) though, but perhaps your hunch about branchlessness is right. Thanks.