[PATCH] D24289: Add warning when assigning enums to bitfields without an explicit unsigned underlying type

Sasha Bermeister via cfe-commits cfe-commits at lists.llvm.org
Thu Sep 15 22:31:48 PDT 2016


sashab added a comment.

Thanks all! :)


================
Comment at: test/SemaCXX/warn-msvc-enum-bitfield.cpp:12
@@ +11,3 @@
+
+  s.e2 = E2;
+  s.f2 = F2;
----------------
thakis wrote:
> Shouldn't this be the version that warns? The assignment with E1 assigns 0 which is portable, but this assigns 1 which overflows, right?
e2 is not a bitfield :) So this code is fine.

And we should warn on all assignments, since any assigned value could potentially be incorrect. Also, most assignments are not static so we don't always have that information :)


https://reviews.llvm.org/D24289





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