On 09/09/2013 11:37 AM, Richard Biener wrote:
That said, grepping for %q+D reveals quite some uses and it looks like
all of them expect the location being used to be that of the decl passed
to the diagnostic call, not some random other location.
If the decl is *not* a PARM_DECL, I expect %q+D to be often accurate. In
fact, even when *is* a PARM_DECL what we have now is pretty decent,
because normally the location of the corresponding FUNCTION_DECL isn't
that far. The point is whether we want to be *more* accurate and point
to the specific unused parameter, for C and C++, as clang and icc do.
Paolo.
