update swig on windows

winx64/bin/swigwin-4.0.0/Examples/tcl/value/example.i

@@ -0,0 +1,32 @@
+// Tests SWIG's handling of pass-by-value for complex datatypes
+%module example
+
+%{
+#include "example.h"
+%}
+
+/* Some functions that manipulate Vectors by value */
+%inline %{
+extern double dot_product(Vector a, Vector b);
+extern Vector vector_add(Vector a, Vector b);
+%}
+
+/* Include this because the vector_add() function will leak memory */
+void   free(void *);
+
+/* Some helper functions for our interface */
+%inline %{
+
+Vector *new_Vector(double x, double y, double z) {
+   Vector *v = (Vector *) malloc(sizeof(Vector));
+   v->x = x;
+   v->y = y;
+   v->z = z;
+   return v;
+}
+
+void vector_print(Vector *v) {
+  printf("Vector %p = (%g, %g, %g)\n", (void *)v, v->x, v->y, v->z);
+}
+%}
+