This commit was manufactured by cvs2svn to create branch

'unlabeled-1.6.2'. [SVN r13456]
2026-01-24 06:02:14 +00:00 · 2002-04-12 05:08:03 +00:00
parent b3ea33f0ab 6aa80b07e7
commit 930aba128a
1 changed files with 95 additions and 0 deletions
--- a/include/boost/python/detail/member_function_cast.hpp
+++ b/include/boost/python/detail/member_function_cast.hpp
@@ -0,0 +1,95 @@
+// Copyright David Abrahams 2002. Permission to copy, use,
+// modify, sell and distribute this software is granted provided this
+// copyright notice appears in all copies. This software is provided
+// "as is" without express or implied warranty, and with no claim as
+// to its suitability for any purpose.
+#ifndef MEMBER_FUNCTION_CAST_DWA2002311_HPP
+# define MEMBER_FUNCTION_CAST_DWA2002311_HPP
+# include <boost/mpl/select_type.hpp>
+# include <boost/type_traits/composite_traits.hpp>
+# include <boost/python/detail/preprocessor.hpp>
+# include <boost/mpl/aux_/preprocessor.hpp>
+# include <boost/preprocessor/comma_if.hpp>
+# include <boost/preprocessor/dec.hpp>
+
+namespace boost { namespace python { namespace detail { 
+
+template <class S, class FT>
+struct cast_helper
+{
+    struct yes_helper
+    {
+        static FT stage3(FT x) { return x; }
+    };
+
+    struct no_helper
+    {
+        template <class T>
+        static T stage3(T x) { return x; }
+    };
+
+    static yes_helper stage2(S*) { return yes_helper(); }
+    static no_helper stage2(void*) { return no_helper(); }
+};
+
+struct non_member_function_cast_impl
+{
+    template <class T>
+    static non_member_function_cast_impl stage1(T) { return non_member_function_cast_impl(); }
+
+    template <class T>
+    static non_member_function_cast_impl stage2(T) { return non_member_function_cast_impl(); }
+
+    template <class T>
+    T stage3(T x) { return x; }
+};
+
+template <class T>
+struct member_function_cast_impl
+{
+# ifndef BOOST_NO_FUNCTION_TEMPLATE_ORDERING
+    template <class U>
+    static non_member_function_cast_impl stage1(U)
+    {
+        return non_member_function_cast_impl();
+    }
+# endif
+    
+// Member functions
+# ifndef BOOST_PYTHON_GENERATE_CODE
+#  include <boost/python/preprocessed/member_function_cast.hpp>
+# endif
+
+# define BOOST_PYTHON_MEMBER_FUNCTION_CAST_STAGE1(args, cv)                                     \
+template <                                                                                      \
+    class S                                                                                     \
+  , class R                                                                                     \
+    BOOST_PP_COMMA_IF(BOOST_PP_DEC(args)) BOOST_MPL_TEMPLATE_PARAMETERS(1, args, class A)       \
+  >                                                                                             \
+static cast_helper<S,BOOST_PYTHON_FN(T::*,1,args)cv()>                                          \
+stage1(BOOST_PYTHON_FN(S::*,1,args)cv())                                                        \
+{                                                                                               \
+    return cast_helper<S,BOOST_PYTHON_FN(T::*,1,args)cv()>();                                   \
+} 
+
+BOOST_PYTHON_REPEAT_MF_ALL_CV_2ND(BOOST_PYTHON_MEMBER_FUNCTION_CAST_STAGE1)
+};
+
+
+template <class T, class SF>
+struct member_function_cast
+# ifndef BOOST_NO_FUNCTION_TEMPLATE_ORDERING
+    : member_function_cast_impl<T>
+# else 
+    : mpl::select_type<
+        is_member_function_pointer<SF>::value
+        , member_function_cast_impl<T>
+        , non_member_function_cast_impl
+    >::type
+# endif 
+{
+};
+
+}}} // namespace boost::python::detail
+
+#endif // MEMBER_FUNCTION_CAST_DWA2002311_HPP