[cfe-commits] [Patch] Remove checking signs of operands of conditional operator from -Wsign-compare

[David Blaikie]

> Currently, -Wsign-compare will warn if conditional operands differ in
> signedness. This patch will move this warning to -Wmixed-sign-conditional
>

What exactly are the semantics of mismatched sign types in a conditional
expression? Is one of the arguments silently forced into (signed or
unsigned) of the same size? Would it be possible to catch that coercion as a
general case, rather than looking at the conditional operator specifically?

[I suppose the -Wsign-conversion warning that Chandler mentioned would be
the user facing equivalent of this. Then my question becomes: Can that
warning be implemented in a general way such that there's no need to do
specific work for the conditional operator case]
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