gcc-9 testcase warning fix

warning: ‘new’ of initializer_list does not extend the lifetime of the
underlying array [-Winit-list-lifetime]

Examples/test-suite/cpp11_initializer_list.i

@@ -6,12 +6,21 @@
 %ignore A::A(std::initializer_list<int>);
 %ignore B::method;
 
-%typemap(in) std::initializer_list<const char *> {
+%typemap(in) std::initializer_list<const char *> %{
   $1 = {"Ab", "Fab"};
-}
+%}
+
+%begin %{
+#if __GNUC__ >= 9
+/* warning: ‘new’ of initializer_list does not extend the lifetime of the underlying array [-Winit-list-lifetime] */
+/* incorrect warning for C::C(std::initializer_list<const char *>) */
+#pragma GCC diagnostic ignored "-Winit-list-lifetime"
+#endif
+%}
 
 %inline %{
 #include <initializer_list>
+#include <string>
 
 class A {
 public:
@@ -26,9 +35,16 @@ public:
   void method(std::initializer_list<int> init) {}
 };
 class C {
+  std::string joined;
 public:
-  C(std::initializer_list<const char *>) {}
+  C(std::initializer_list<const char *> init) {
+    for (auto& val : init)
+      joined += val;
+  }
   C() {}
+  const char * get_joined_string() {
+    return joined.c_str();
+  }
 };
 %}
 

Examples/test-suite/java/cpp11_initializer_list_runme.java

@@ -0,0 +1,21 @@
+
+import cpp11_initializer_list.*;
+
+public class cpp11_initializer_list_runme {
+
+  static {
+    try {
+	System.loadLibrary("cpp11_initializer_list");
+    } catch (UnsatisfiedLinkError e) {
+      System.err.println("Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" + e);
+      System.exit(1);
+    }
+  }
+
+  public static void main(String argv[]) {
+    C c = new C(null);
+    String joined = c.get_joined_string();
+    if (!joined.equals("AbFab"))
+      throw new RuntimeException("Wrong joined string " + joined);
+  }
+}