gcc/SOURCES/gcc8-pr86747.patch
2019-11-05 15:22:38 -05:00

31 lines
833 B
Diff

2018-12-06 Alexandre Oliva <aoliva@redhat.com>
PR c++/86747
* pt.c (tsubst_friend_class): Enter tsubsted class context.
--- gcc/cp/pt.c
+++ gcc/cp/pt.c
@@ -10558,7 +10558,10 @@ tsubst_friend_class (tree friend_tmpl, tree args)
if (TREE_CODE (context) == NAMESPACE_DECL)
push_nested_namespace (context);
else
- push_nested_class (context);
+ {
+ context = tsubst (context, args, tf_error, NULL_TREE);
+ push_nested_class (context);
+ }
tmpl = lookup_name_real (DECL_NAME (friend_tmpl), /*prefer_type=*/false,
/*non_class=*/false, /*block_p=*/false,
--- /dev/null
+++ gcc/testsuite/g++.dg/pr86747.C
@@ -0,0 +1,8 @@
+// { dg-do compile }
+
+template <typename T> class A {
+ template <void (A::*p)()> class C; // #1
+ template <void (A::*q)()> friend class C; // #2
+};
+
+A<double> a;