[Haskell-cafe] Precedence of plus and bit-wise-and

[Doug McIlroy]

Sorry for hitting return prematurely. The final sentence below
tells the tale.
The reason for the low precedence of & and | in PL/I and C is
that those were used as Boolean operators in conditions. For
example
        lessequal(a,b) { return(a<b | a==b); }
That usage was baked in before the short-cut operators && and ||
were introduced in C.

doug