This is a pretty obvious patch. We were permitting a scoped enum initializer of
an another enum to silently decay to int. That's not right, only unscoped enums
have that privilege.
committed.
nathan
2015-05-24 Nathan Sidwell <nat...@acm.org>
cp/
PR c++/66243
* decl.c (build_enumerator): Don't silently convert scoped enums.
testsuite/
PR c++/66243
* g++.dg/cpp0x/pr66243.C: New.
Index: cp/decl.c
===================================================================
--- cp/decl.c (revision 223613)
+++ cp/decl.c (working copy)
@@ -13097,7 +13097,8 @@ build_enumerator (tree name, tree value,
if (tmp_value)
value = tmp_value;
}
- else if (! INTEGRAL_OR_ENUMERATION_TYPE_P (TREE_TYPE (value)))
+ else if (! INTEGRAL_OR_UNSCOPED_ENUMERATION_TYPE_P
+ (TREE_TYPE (value)))
value = perform_implicit_conversion_flags
(ENUM_UNDERLYING_TYPE (enumtype), value, tf_warning_or_error,
LOOKUP_IMPLICIT | LOOKUP_NO_NARROWING);
Index: testsuite/g++.dg/cpp0x/pr66243.C
===================================================================
--- testsuite/g++.dg/cpp0x/pr66243.C (revision 0)
+++ testsuite/g++.dg/cpp0x/pr66243.C (working copy)
@@ -0,0 +1,12 @@
+// { dg-do compile { target c++11 } }
+
+enum class A
+{
+ X
+};
+
+enum class B
+{
+ X = A::X // { dg-error "could not convert" }
+};
+
