[PATCH] D131307: [Clang] Allow downgrading to a warning the diagnostic for setting a non fixed enum to a value outside the range of the enumeration values

[Shafik Yaghmour via Phabricator via cfe-commits]

shafik created this revision.
shafik added reviewers: aaron.ballman, erichkeane, thakis, smeenai, tahonermann.
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In D130058 <https://reviews.llvm.org/D130058> we diagnose the undefined behavior of setting the value outside the range of the enumerations values for an enum without a fixed underlying type.

Based on feedback we will provide users to the ability to downgrade this this diagnostic to a waring to allow for a transition period. We expect to turn this diagnostic to an error in the next release.


https://reviews.llvm.org/D131307

Files:
  clang/docs/ReleaseNotes.rst
  clang/include/clang/Basic/DiagnosticASTKinds.td
  clang/lib/AST/ExprConstant.cpp
  clang/test/SemaCXX/MicrosoftCompatibility.cpp
  clang/test/SemaCXX/compare.cpp
  clang/test/SemaCXX/constant-expression-cxx11.cpp

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