Re: -Wparentheses

Adriaan van Os wrote:

1. precedence of operators.

It is well defined that a or b and c is equal to a or (b and c) , as a + b * c equal to a + (b * c). A warning here is annoying. If at all, it should be a separate option, off by default and not included in -Wall.

2. logical operations in an operand of a relational operator

OK, this can be confusing, a warning is useful (off by default and on with -Wall).

Sorry, I think you're contradicting yourself. 2. is also about precendence of operators, and it's just as well defined. That's not the question -- it's about whether humans (not computers) are likely to confuse them.

When writing more complex Boolean expressions, I've found it useful (in C so far) to get this warning, since occasionally I really make such mistakes (and they're often not easy to notice otherwise).

Frank