1 files changed, 22 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/template/incomplete6.C b/gcc/testsuite/g++.dg/template/incomplete6.C
new file mode 100644
index 000000000..7138b6a3b
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/incomplete6.C
@@ -0,0 +1,22 @@
+// PR c++/48115
+
+template<typename> struct templ { };
+
+template<typename T> T declval();
+
+typedef int (*F2)(...);
+
+template<int> struct Int { };
+
+template<typename F, typename T>
+struct S
+{
+    template<typename A>
+        Int<sizeof( declval<F>()(T()) )>
+        f(A);
+};
+
+int main()
+{
+    S<F2, templ<int> >().f(0);
+}