diff mbox series

[pushed] c++: &enum::enumerator [PR101869]

Message ID 20230316220948.1138021-1-jason@redhat.com
State New
Headers show
Series [pushed] c++: &enum::enumerator [PR101869] | expand

Commit Message

Jason Merrill March 16, 2023, 10:09 p.m. UTC 
Tested x86_64-pc-linux-gnu, applying to trunk.

-- 8< --

We don't want to call build_offset_ref with an enum.

	PR c++/101869

gcc/cp/ChangeLog:

	* semantics.cc (finish_qualified_id_expr): Don't try to build a
	pointer-to-member if the scope is an enumeration.

gcc/testsuite/ChangeLog:

	* g++.dg/cpp0x/enum43.C: New test.
---
 gcc/cp/semantics.cc                 |  3 ++-
 gcc/testsuite/g++.dg/cpp0x/enum43.C | 11 +++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)
 create mode 100644 gcc/testsuite/g++.dg/cpp0x/enum43.C


base-commit: e6ccae0ac0d53cfa9099d62fada050ee87d4d0ad
diff mbox series

Patch

diff --git a/gcc/cp/semantics.cc b/gcc/cp/semantics.cc
index 57dd7b66da8..87c2e8a7111 100644
--- a/gcc/cp/semantics.cc
+++ b/gcc/cp/semantics.cc
@@ -2386,7 +2386,8 @@  finish_qualified_id_expr (tree qualifying_class,
 
   /* If EXPR occurs as the operand of '&', use special handling that
      permits a pointer-to-member.  */
-  if (address_p && done)
+  if (address_p && done
+      && TREE_CODE (qualifying_class) != ENUMERAL_TYPE)
     {
       if (TREE_CODE (expr) == SCOPE_REF)
 	expr = TREE_OPERAND (expr, 1);
diff --git a/gcc/testsuite/g++.dg/cpp0x/enum43.C b/gcc/testsuite/g++.dg/cpp0x/enum43.C
new file mode 100644
index 00000000000..b2cd9797a06
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/enum43.C
@@ -0,0 +1,11 @@ 
+// PR c++/101869
+
+enum E { A };
+E operator & (E e)
+{
+  return e;
+}
+E f(void)
+{
+    return &E::A;	 // { dg-error "not a class" "" { target c++98_only } }
+}