Default the copy and move constructors for __tuple_leaf. This fixes bugs 18853 and 19118. Add a test case for that.

llvm-svn: 206829

1 files changed, 35 insertions, 0 deletions

diff --git a/libcxx/test/utilities/tuple/tuple.tuple/TupleFunction.pass.cpp b/libcxx/test/utilities/tuple/tuple.tuple/TupleFunction.pass.cpp
new file mode 100644
index 00000000000..df5fdff511e
--- /dev/null
+++ b/libcxx/test/utilities/tuple/tuple.tuple/TupleFunction.pass.cpp
@@ -0,0 +1,35 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// This is for bugs 18853 and 19118
+
+#if __cplusplus >= 201103L
+
+#include <tuple>
+#include <functional>
+
+struct X
+{
+    X() {}
+
+    template <class T>
+    X(T);
+
+    void operator()() {}
+};
+
+int
+main()
+{
+    X x;
+    std::function<void()> f(x);
+}
+#else
+int main () {}
+#endif