Added boost header

test/external/boost/python/to_python_indirect.hpp

@@ -0,0 +1,113 @@
+// Copyright David Abrahams 2002.
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+#ifndef TO_PYTHON_INDIRECT_DWA200221_HPP
+# define TO_PYTHON_INDIRECT_DWA200221_HPP
+
+# include <boost/python/detail/prefix.hpp>
+
+# include <boost/python/object/pointer_holder.hpp>
+# include <boost/python/object/make_ptr_instance.hpp>
+
+# include <boost/python/detail/none.hpp>
+
+#ifndef BOOST_PYTHON_NO_PY_SIGNATURES
+# include <boost/python/converter/pytype_function.hpp>
+#endif
+
+# include <boost/python/refcount.hpp>
+
+# include <boost/type_traits/is_pointer.hpp>
+# include <boost/type_traits/is_polymorphic.hpp>
+
+# include <boost/mpl/bool.hpp>
+
+# if defined(__ICL) && __ICL < 600 
+#  include <boost/shared_ptr.hpp>
+# else 
+#  include <memory>
+# endif
+
+namespace boost { namespace python {
+
+template <class T, class MakeHolder>
+struct to_python_indirect
+{
+    template <class U>
+    inline PyObject*
+    operator()(U const& ref) const
+    {
+        return this->execute(const_cast<U&>(ref), is_pointer<U>());
+    }
+#ifndef BOOST_PYTHON_NO_PY_SIGNATURES
+    inline PyTypeObject const*
+    get_pytype()const
+    {
+        return converter::registered_pytype<T>::get_pytype();
+    }
+#endif
+ private:
+    template <class U>
+    inline PyObject* execute(U* ptr, mpl::true_) const
+    {
+        // No special NULL treatment for references
+        if (ptr == 0)
+            return python::detail::none();
+        else
+            return this->execute(*ptr, mpl::false_());
+    }
+    
+    template <class U>
+    inline PyObject* execute(U const& x, mpl::false_) const
+    {
+        U* const p = &const_cast<U&>(x);
+        if (is_polymorphic<U>::value)
+        {
+            if (PyObject* o = detail::wrapper_base_::owner(p))
+                return incref(o);
+        }
+        return MakeHolder::execute(p);
+    }
+};
+
+//
+// implementations
+//
+namespace detail
+{
+  struct make_owning_holder
+  {
+      template <class T>
+      static PyObject* execute(T* p)
+      {
+          // can't use auto_ptr with Intel 5 and VC6 Dinkum library
+          // for some reason. We get link errors against the auto_ptr
+          // copy constructor.
+# if defined(__ICL) && __ICL < 600 
+          typedef boost::shared_ptr<T> smart_pointer;
+# else 
+          typedef std::auto_ptr<T> smart_pointer;
+# endif
+          typedef objects::pointer_holder<smart_pointer, T> holder_t;
+
+          smart_pointer ptr(const_cast<T*>(p));
+          return objects::make_ptr_instance<T, holder_t>::execute(ptr);
+      }
+  };
+
+  struct make_reference_holder
+  {
+      template <class T>
+      static PyObject* execute(T* p)
+      {
+          typedef objects::pointer_holder<T*, T> holder_t;
+          T* q = const_cast<T*>(p);
+          return objects::make_ptr_instance<T, holder_t>::execute(q);
+      }
+  };
+}
+
+}} // namespace boost::python
+
+#endif // TO_PYTHON_INDIRECT_DWA200221_HPP