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authorDouglas Gregor <dgregor@apple.com>2013-03-25 22:22:35 +0000
committerDouglas Gregor <dgregor@apple.com>2013-03-25 22:22:35 +0000
commitabde2c7f2c0699c7db395166f4e89b80bb87bf67 (patch)
tree99e966599c39dad7115f779981a5efcaa7b9fdf6
parente91544210a59c53ad8e49d0008a969682579814e (diff)
<rdar://problem/13459871> Allow forward declaration of enums with a fixed underlying type in Objective-C (as well as C++11).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177930 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--lib/Sema/SemaDecl.cpp3
-rw-r--r--test/SemaObjC/enum-fixed-type.m8
2 files changed, 6 insertions, 5 deletions
diff --git a/lib/Sema/SemaDecl.cpp b/lib/Sema/SemaDecl.cpp
index 5597bf6009..cb05bb0099 100644
--- a/lib/Sema/SemaDecl.cpp
+++ b/lib/Sema/SemaDecl.cpp
@@ -9858,7 +9858,8 @@ CreateNewDecl:
// If this is an undefined enum, warn.
if (TUK != TUK_Definition && !Invalid) {
TagDecl *Def;
- if (getLangOpts().CPlusPlus11 && cast<EnumDecl>(New)->isFixed()) {
+ if ((getLangOpts().CPlusPlus11 || getLangOpts().ObjC2) &&
+ cast<EnumDecl>(New)->isFixed()) {
// C++0x: 7.2p2: opaque-enum-declaration.
// Conflicts are diagnosed above. Do nothing.
}
diff --git a/test/SemaObjC/enum-fixed-type.m b/test/SemaObjC/enum-fixed-type.m
index 6fd400a637..c00e45a03e 100644
--- a/test/SemaObjC/enum-fixed-type.m
+++ b/test/SemaObjC/enum-fixed-type.m
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsyntax-only -verify %s
+// RUN: %clang_cc1 -fsyntax-only -pedantic -verify %s
#if !__has_feature(objc_fixed_enum)
# error Enumerations with a fixed underlying type are not supported
@@ -28,9 +28,9 @@ void test() {
// <rdar://10381507>
typedef enum : long { Foo } IntegerEnum;
-int arr[(sizeof(typeof(Foo)) == sizeof(typeof(IntegerEnum))) - 1];
-int arr1[(sizeof(typeof(Foo)) == sizeof(typeof(long))) - 1];
-int arr2[(sizeof(typeof(IntegerEnum)) == sizeof(typeof(long))) - 1];
+int arr[(sizeof(__typeof__(Foo)) == sizeof(__typeof__(IntegerEnum)))? 1 : -1];
+int arr1[(sizeof(__typeof__(Foo)) == sizeof(__typeof__(long)))? 1 : -1];
+int arr2[(sizeof(__typeof__(IntegerEnum)) == sizeof(__typeof__(long)))? 1 : -1];
// <rdar://problem/10760113>
typedef enum : long long { Bar = -1 } LongLongEnum;