update swig on windows

winx64/bin/swigwin-4.0.0/Examples/test-suite/cpp11_reference_wrapper.i

@@ -0,0 +1,36 @@
+%module cpp11_reference_wrapper
+
+// SWIG could provide some sort of typemaps for reference_wrapper which is acts like a C++ reference,
+// but is copy-constructible and copy-assignable
+
+%inline %{
+#include <iostream>
+#include <functional>
+using namespace std;
+
+struct B {
+  B(int &val) : val(val) {}
+  std::reference_wrapper<int> val;
+//  int &val;
+};
+%}
+
+%inline %{
+void go() {
+  int val(999);
+  B b1(val);
+  int const& aa1 = b1.val;
+  cout << aa1 << endl;
+
+  // copy constructible
+  B b2(b1);
+  int const& aa2 = b2.val;
+  cout << aa2 << endl;
+
+  // copy assignable
+  B b3(val);
+  b3 = b1;
+  int const& aa3 = b3.val;
+  cout << aa3 << endl;
+}
+%}