Add support for automatic conversion between chaiscript functions and boost::function. Might merit some look to see how much overhead this adds.

unittests/functor_cast_test.cpp

@@ -0,0 +1,25 @@
+#include <chaiscript/utility/utility.hpp>
+
+double test_call(const boost::function<double (int)> &f, int val)
+{
+  return f(val);
+}
+
+int main()
+{
+
+  chaiscript::ChaiScript chai;
+  
+  chai.add(chaiscript::fun(&test_call), "test_call");
+
+  chai.eval("def func(i) { return i * 3.5; };");
+  double d = chai.eval<double>("test_call(func, 3)");
+  
+  if (d == 3 * 3.5)
+  {
+    return EXIT_SUCCESS;  
+  } else {
+    return EXIT_FAILURE;
+  }
+
+}