[Bug c/66773] sign-compare warning for == and != are pretty useless

[vincent-gcc at vinc17 dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66773

Vincent Lefèvre <vincent-gcc at vinc17 dot net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |vincent-gcc at vinc17 dot net

--- Comment #7 from Vincent Lefèvre <vincent-gcc at vinc17 dot net> ---
(In reply to Segher Boessenkool from comment #1)
> There certainly are cases where these warnings are inconvenient, but
> there also are cases where they are quite useful -- e.g.
> 
> int f(void) { return 0xffffffff == -1; }

I'd say that the warning is inconvenient here, since if the developer really
wants to do a test equivalent to the above one, there seems no good way to
avoid the warning with portable code.