1 files changed, 42 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/cpp1y/lambda-generic-dep.C b/gcc/testsuite/g++.dg/cpp1y/lambda-generic-dep.C
new file mode 100644
index 0000000000..c22bb97eca
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp1y/lambda-generic-dep.C
@@ -0,0 +1,42 @@
+// Generic lambda type dependence test part from N3690 5.1.2.12
+// { dg-do compile { target c++1y } }
+
+void f(int, const int (&)[2] = {}) { } // #1
+void f(const int&, const int (&)[1]) { } // #2
+
+void test()
+{
+  const int x = 17;
+  auto g = [](auto a) {
+    f(x); // OK: calls #1, does not capture x
+  };
+  auto g2 = [=](auto a) {
+    int selector[sizeof(a) == 1 ? 1 : 2]{};
+    f(x, selector); // OK: is a dependent expression, so captures x
+  };
+}
+
+struct S {
+  struct N {
+    auto test () { return 7.f; }
+  };
+};
+
+#include <utility>
+
+int main()
+{
+  auto f = [] <typename T> (T const& s) mutable {
+    typename T::N x;
+    return x.test ();
+  };
+  auto g = [] (auto const& s) {
+    typename std::decay<decltype (s)>::type::N x;
+    return x.test ();
+  };
+
+  S i;
+  f(i);
+  g(i);
+}
+