Comment by teo_zero

Please note that, despite the misleading title, TFA is about the precedence of bitwise operators & and | with respect to the comparison operators (== and all the others). In particular it was asked to Ritchie why the former are weaker than the latter in C, a rule generally considered a mistake because it makes it impossible to write common expressions like

  if (addr & mask == 0)

without adding extra parentheses:

  if ((addr & mask) == 0)

TFA is not about the relative precedence between & and | (which is well understood, although disputed, and has mathematical basis), or between && and || (which mimics & and |). And TFA is not even about the precedence of the logical operators && and || vs. the comparison operators.

I'm writing this because I've seen a lot of comments that, while interesting in themselves, completely misunderstood the premise.