Microsoft enum extensions. 2 things will change on -fms-extensions:
1. enum underlying type is int by default.
2. Error "enumerator value is not representable in the underlying type"is a ExtWarning
llvm-svn: 116704
diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index c727c643..a65c69d 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -5526,7 +5526,9 @@
// Recover by falling back to int.
EnumUnderlying = Context.IntTy.getTypePtr();
}
- }
+ } else if (getLangOptions().Microsoft)
+ // Microsoft enums are always of int type.
+ EnumUnderlying = Context.IntTy.getTypePtr();
}
DeclContext *SearchDC = CurContext;
@@ -7080,10 +7082,14 @@
// C++0x [dcl.enum]p5:
// ... if the initializing value of an enumerator cannot be
// represented by the underlying type, the program is ill-formed.
- if (!isRepresentableIntegerValue(Context, EnumVal, EltTy))
- Diag(IdLoc, diag::err_enumerator_too_large)
- << EltTy;
- else
+ if (!isRepresentableIntegerValue(Context, EnumVal, EltTy)) {
+ if (getLangOptions().Microsoft) {
+ Diag(IdLoc, diag::ext_enumerator_too_large) << EltTy;
+ ImpCastExprToType(Val, EltTy, CK_IntegralCast);
+ } else
+ Diag(IdLoc, diag::err_enumerator_too_large)
+ << EltTy;
+ } else
ImpCastExprToType(Val, EltTy, CK_IntegralCast);
}
else {