Added syntax for lambda expressions and closures introduced in C++0x.

Added testcase cpp0x_lambda_functions.i.


git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/branches/gsoc2009-matevz@11491 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/test-suite/cpp0x_lambda_functions.i

@@ -0,0 +1,34 @@
+/* This testcase checks whether Swig correctly parses the lambda expressions
+   and closure syntax introduced in C++0x.
+   Swig supports only lambda syntax and doesn't produce any wrapper code for
+   this.
+*/
+%module cpp0x_lambda_functions
+
+%inline %{
+struct A {
+        /* Defined lambda function with return value. */
+        auto lambda1 = [](int x, int y) -> int { return x+y; };
+        
+        /* Defined lambda function without return value.
+           Return value is calculated by compiler, if the function contains a
+           single statement "return expr;". */
+        auto lambda2 = [](int x, int y) { return x+y; };
+};
+
+int runLambda1() {
+        A myA;
+        return myA.lambda1(5,6);
+}
+
+int runLambda2() {
+        A myA;
+        return myA.lambda2(5,6);
+}
+
+/* Inline defined lambda function. */
+int runLambda3() {
+        auto myLambda = [](int x, int y) { return x+y; };
+        return myLambda(5,6);
+}
+%}