@@ -25736,6 +25736,8 @@ instantiation_dependent_r (tree *tp, int *walk_subtrees,
case TEMPLATE_PARM_INDEX:
if (dependent_type_p (TREE_TYPE (*tp)))
return *tp;
+ if (TEMPLATE_PARM_PARAMETER_PACK (*tp))
+ return *tp;
/* We'll check value-dependence separately. */
return NULL_TREE;
new file mode 100644
@@ -0,0 +1,9 @@
+// PR c++/88555
+// { dg-do compile { target c++11 } }
+
+template <class ...> struct T {};
+
+template <int ...Indices>
+void test() {
+ using Test = T<decltype((Indices, char(0)))...>;
+}
@@ -1,3 +1,9 @@
+2019-01-11 Jason Merrill <jason@redhat.com>
+
+ PR c++/88312 - pack expansion of decltype.
+ * pt.c (instantiation_dependent_r): A template non-type parameter
+ pack is instantiation-dependent.
+
2019-01-11 Jason Merrill <jason@redhat.com>
PR c++/88613 - ICE with use of const var in lambda.