@@ -6410,7 +6410,7 @@ coerce_template_parms (tree parms,
sorry ("cannot expand %<%T%> into a fixed-length "
"argument list", arg);
}
- return error_mark_node;
+ ++lost;
}
}
else if (require_all_args)
@@ -6438,7 +6438,7 @@ coerce_template_parms (tree parms,
reported) that we are trying to recover from, e.g., a class
template with a parameter list such as
template<typename..., typename>. */
- return error_mark_node;
+ ++lost;
else
arg = convert_template_argument (TREE_VALUE (parm),
arg, new_args, complain,
new file mode 100644
@@ -0,0 +1,24 @@
+// PR c++/47289
+// { dg-options -std=c++0x }
+// { dg-prune-output "note" }
+
+template <template <typename... __ARGS> class _F, typename... _ARGS>
+auto reverse (_ARGS... args) -> decltype(_F<_ARGS...>::call_function(args...)) {
+ return _F<_ARGS...>::call_function(args...);
+}
+
+template <typename _T>
+_T sum(_T x) { return x; }
+
+template <typename _T, typename... _ARGS>
+_T sum(_T x, _ARGS... args) { return x + sum(args...); }
+
+template <typename _T, typename... _ARGS>
+struct call_sum {
+ static _T call_function(_T x1, _ARGS... args) { return sum(x1, args...); }
+};
+
+int main() {
+ // This shouldn't be an error; this is bug 35722.
+ reverse<call_sum>(1,2); // { dg-bogus "no match" "" { xfail *-*-* } }
+}