Added boost header

test/external/boost/python/detail/nullary_function_adaptor.hpp

@@ -0,0 +1,46 @@
+// Copyright David Abrahams 2003.
+// 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 NULLARY_FUNCTION_ADAPTOR_DWA2003824_HPP
+# define NULLARY_FUNCTION_ADAPTOR_DWA2003824_HPP
+
+# include <boost/python/detail/prefix.hpp>
+# include <boost/preprocessor/iteration/local.hpp>
+# include <boost/preprocessor/facilities/intercept.hpp>
+# include <boost/preprocessor/repetition/enum_params.hpp>
+# include <boost/preprocessor/repetition/enum_binary_params.hpp>
+
+namespace boost { namespace python { namespace detail { 
+
+// nullary_function_adaptor -- a class template which ignores its
+// arguments and calls a nullary function instead.  Used for building
+// error-reporting functions, c.f. pure_virtual
+template <class NullaryFunction>
+struct nullary_function_adaptor
+{
+    nullary_function_adaptor(NullaryFunction fn)
+      : m_fn(fn)
+    {}
+
+    void operator()() const { m_fn(); }
+
+# define BOOST_PP_LOCAL_MACRO(i)                                            \
+    template <BOOST_PP_ENUM_PARAMS_Z(1, i, class A)>                        \
+    void operator()(                                                        \
+        BOOST_PP_ENUM_BINARY_PARAMS_Z(1, i, A, const& BOOST_PP_INTERCEPT)   \
+    ) const                                                                 \
+    {                                                                       \
+        m_fn();                                                             \
+    }
+
+# define BOOST_PP_LOCAL_LIMITS (1, BOOST_PYTHON_MAX_ARITY)
+# include BOOST_PP_LOCAL_ITERATE()
+    
+ private:
+    NullaryFunction m_fn;
+};
+
+}}} // namespace boost::python::detail
+
+#endif // NULLARY_FUNCTION_ADAPTOR_DWA2003824_HPP