[committed] c++: Add testcase for PR c++/93207

[Patrick Palka via Gcc-patches]

gcc/testsuite/ChangeLog:

        PR c++/93207
        * g++.dg/concepts/variadic5.C: New test.
---
 gcc/testsuite/g++.dg/concepts/variadic5.C | 26 +++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 gcc/testsuite/g++.dg/concepts/variadic5.C

diff --git a/gcc/testsuite/g++.dg/concepts/variadic5.C 
b/gcc/testsuite/g++.dg/concepts/variadic5.C
new file mode 100644
index 00000000000..a871079e5de
--- /dev/null
+++ b/gcc/testsuite/g++.dg/concepts/variadic5.C
@@ -0,0 +1,26 @@
+// PR c++/93207
+// { dg-do compile { target concepts } }
+
+template <typename... Args>
+concept C = true;
+
+struct S
+{
+    template <typename... Args>
+    void f()
+    requires C<Args...>;
+};
+
+template <typename... Args>
+void S::f()
+requires C<Args...>
+{
+}
+
+void foo()
+{
+  S s;
+  s.f<>();
+  s.f<int>();
+  s.f<int, char>();
+}
-- 
2.26.0.106.g9fadedd637