sl@0: // Copyright David Abrahams 2002.
sl@0: // Distributed under the Boost Software License, Version 1.0. (See
sl@0: // accompanying file LICENSE_1_0.txt or copy at
sl@0: // http://www.boost.org/LICENSE_1_0.txt)
sl@0: #ifndef CONVERTIBLE_DWA2002614_HPP
sl@0: # define CONVERTIBLE_DWA2002614_HPP
sl@0: 
sl@0: # if defined(__EDG_VERSION__) && __EDG_VERSION__ <= 241
sl@0: #  include <boost/mpl/if.hpp>
sl@0: #  include <boost/type_traits/conversion_traits.hpp>
sl@0: # endif 
sl@0: 
sl@0: // Supplies a runtime is_convertible check which can be used with tag
sl@0: // dispatching to work around the Metrowerks Pro7 limitation with boost::is_convertible
sl@0: namespace boost { namespace python { namespace detail { 
sl@0: 
sl@0: typedef char* yes_convertible;
sl@0: typedef int* no_convertible;
sl@0: 
sl@0: template <class Target>
sl@0: struct convertible
sl@0: {
sl@0: # if !defined(__EDG_VERSION__) || __EDG_VERSION__ > 241 || __EDG_VERSION__ == 238
sl@0:     static inline no_convertible check(...) { return 0; }
sl@0:     static inline yes_convertible check(Target) { return 0; }
sl@0: # else
sl@0:     template <class X>
sl@0:     static inline typename mpl::if_c<
sl@0:         is_convertible<X,Target>::value
sl@0:         , yes_convertible
sl@0:         , no_convertible
sl@0:         >::type check(X const&) { return 0; }
sl@0: # endif 
sl@0: };
sl@0: 
sl@0: }}} // namespace boost::python::detail
sl@0: 
sl@0: #endif // CONVERTIBLE_DWA2002614_HPP