Re: [C/C++ PATCH] Add -Wlogical-not-parentheses (PR c/49706)

[Jason Merrill]

On 06/02/2014 12:23 PM, Marek Polacek wrote:
I have no special reason for that check, so dropped it too in this
patch.

Thanks. I expect that warn_logical_not_parentheses will crash if one of 
the operands is type-dependent such that TREE_TYPE is NULL_TREE, so 
you'll want to handle that case, and test it in the testcase, i.e. 
something like

#ifdef __cplusplus
template <class T, class U> bool f(T t, U u) { return (!t == u); }
#endif

I think !t should have null TREE_TYPE in this case.

Jason