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annotate DEPENDENCIES/generic/include/boost/python/detail/convertible.hpp @ 133:4acb5d8d80b6 tip
Don't fail environmental check if README.md exists (but .txt and no-suffix don't)
| author | Chris Cannam |
|---|---|
| date | Tue, 30 Jul 2019 12:25:44 +0100 |
| parents | 2665513ce2d3 |
| children |
| rev | line source |
|---|---|
| Chris@16 | 1 // Copyright David Abrahams 2002. |
| Chris@16 | 2 // Distributed under the Boost Software License, Version 1.0. (See |
| Chris@16 | 3 // accompanying file LICENSE_1_0.txt or copy at |
| Chris@16 | 4 // http://www.boost.org/LICENSE_1_0.txt) |
| Chris@16 | 5 #ifndef CONVERTIBLE_DWA2002614_HPP |
| Chris@16 | 6 # define CONVERTIBLE_DWA2002614_HPP |
| Chris@16 | 7 |
| Chris@16 | 8 # if defined(__EDG_VERSION__) && __EDG_VERSION__ <= 241 |
| Chris@16 | 9 # include <boost/mpl/if.hpp> |
| Chris@16 | 10 # include <boost/type_traits/conversion_traits.hpp> |
| Chris@16 | 11 # endif |
| Chris@16 | 12 |
| Chris@16 | 13 // Supplies a runtime is_convertible check which can be used with tag |
| Chris@16 | 14 // dispatching to work around the Metrowerks Pro7 limitation with boost::is_convertible |
| Chris@16 | 15 namespace boost { namespace python { namespace detail { |
| Chris@16 | 16 |
| Chris@16 | 17 typedef char* yes_convertible; |
| Chris@16 | 18 typedef int* no_convertible; |
| Chris@16 | 19 |
| Chris@16 | 20 template <class Target> |
| Chris@16 | 21 struct convertible |
| Chris@16 | 22 { |
| Chris@16 | 23 # if !defined(__EDG_VERSION__) || __EDG_VERSION__ > 241 || __EDG_VERSION__ == 238 |
| Chris@16 | 24 static inline no_convertible check(...) { return 0; } |
| Chris@16 | 25 static inline yes_convertible check(Target) { return 0; } |
| Chris@16 | 26 # else |
| Chris@16 | 27 template <class X> |
| Chris@16 | 28 static inline typename mpl::if_c< |
| Chris@16 | 29 is_convertible<X,Target>::value |
| Chris@16 | 30 , yes_convertible |
| Chris@16 | 31 , no_convertible |
| Chris@16 | 32 >::type check(X const&) { return 0; } |
| Chris@16 | 33 # endif |
| Chris@16 | 34 }; |
| Chris@16 | 35 |
| Chris@16 | 36 }}} // namespace boost::python::detail |
| Chris@16 | 37 |
| Chris@16 | 38 #endif // CONVERTIBLE_DWA2002614_HPP |