Chris@16: // Copyright David Abrahams 2002.
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See
Chris@16: // accompanying file LICENSE_1_0.txt or copy at
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: #ifndef CONVERTIBLE_DWA2002614_HPP
Chris@16: # define CONVERTIBLE_DWA2002614_HPP
Chris@16: 
Chris@16: # if defined(__EDG_VERSION__) && __EDG_VERSION__ <= 241
Chris@16: #  include <boost/mpl/if.hpp>
Chris@16: #  include <boost/type_traits/conversion_traits.hpp>
Chris@16: # endif 
Chris@16: 
Chris@16: // Supplies a runtime is_convertible check which can be used with tag
Chris@16: // dispatching to work around the Metrowerks Pro7 limitation with boost::is_convertible
Chris@16: namespace boost { namespace python { namespace detail { 
Chris@16: 
Chris@16: typedef char* yes_convertible;
Chris@16: typedef int* no_convertible;
Chris@16: 
Chris@16: template <class Target>
Chris@16: struct convertible
Chris@16: {
Chris@16: # if !defined(__EDG_VERSION__) || __EDG_VERSION__ > 241 || __EDG_VERSION__ == 238
Chris@16:     static inline no_convertible check(...) { return 0; }
Chris@16:     static inline yes_convertible check(Target) { return 0; }
Chris@16: # else
Chris@16:     template <class X>
Chris@16:     static inline typename mpl::if_c<
Chris@16:         is_convertible<X,Target>::value
Chris@16:         , yes_convertible
Chris@16:         , no_convertible
Chris@16:         >::type check(X const&) { return 0; }
Chris@16: # endif 
Chris@16: };
Chris@16: 
Chris@16: }}} // namespace boost::python::detail
Chris@16: 
Chris@16: #endif // CONVERTIBLE_DWA2002614_HPP