[Tcl] Prevent SWIG_Tcl_ConvertPtr from calling the unknown proc.

Add Examples/tcl/std_vector/ which this change fixes.  Patch
is from "Cliff C" in SF#1809819.


git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@9989 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/tcl/std_vector/example.h

@@ -0,0 +1,25 @@
+/* File : example.h */
+
+#include <vector>
+#include <algorithm>
+#include <functional>
+#include <numeric>
+
+double average(std::vector<int> v) {
+    return std::accumulate(v.begin(),v.end(),0.0)/v.size();
+}
+
+std::vector<double> half(const std::vector<double>& v) {
+    std::vector<double> w(v);
+    for (unsigned int i=0; i<w.size(); i++)
+        w[i] /= 2.0;
+    return w;
+}
+
+void halve_in_place(std::vector<double>& v) {
+    // would you believe this is the same as the above?
+    std::transform(v.begin(),v.end(),v.begin(),
+                   std::bind2nd(std::divides<double>(),2.0));
+}
+
+