| // 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 CONVERTIBLE_DWA2002614_HPP | |
| # define CONVERTIBLE_DWA2002614_HPP | |
| # if defined(__EDG_VERSION__) && __EDG_VERSION__ <= 241 | |
| # include <boost/mpl/if.hpp> | |
| # include <boost/type_traits/conversion_traits.hpp> | |
| # endif | |
| // Supplies a runtime is_convertible check which can be used with tag | |
| // dispatching to work around the Metrowerks Pro7 limitation with boost::is_convertible | |
| namespace boost { namespace python { namespace detail { | |
| typedef char* yes_convertible; | |
| typedef int* no_convertible; | |
| template <class Target> | |
| struct convertible | |
| { | |
| # if !defined(__EDG_VERSION__) || __EDG_VERSION__ > 241 || __EDG_VERSION__ == 238 | |
| static inline no_convertible check(...) { return 0; } | |
| static inline yes_convertible check(Target) { return 0; } | |
| # else | |
| template <class X> | |
| static inline typename mpl::if_c< | |
| is_convertible<X,Target>::value | |
| , yes_convertible | |
| , no_convertible | |
| >::type check(X const&) { return 0; } | |
| # endif | |
| }; | |
| }}} // namespace boost::python::detail | |
| #endif // CONVERTIBLE_DWA2002614_HPP |