| // 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 |