PageRenderTime 1302ms CodeModel.GetById 21ms RepoModel.GetById 0ms app.codeStats 0ms

/ruin/type_traits/is_static_castable.hpp

http://github.com/sillycrown/Ruin
C++ Header | 31 lines | 20 code | 11 blank | 0 comment | 0 complexity | a59cb0b564b546cf7113a5ca6c92e292 MD5 | raw file
    

  1. 

    2. 

  2. #ifndef RUIN_TYPE_TRAITS_IS_STATIC_CASTABLE_HPP_INCLUDED

    3. 

  3. #define RUIN_TYPE_TRAITS_IS_STATIC_CASTABLE_HPP_INCLUDED

    4. 

  4. 

    5. 

  5. #include "ruin/mpl/bool.hpp"

    6. 

  6. #include "ruin/utility/declval.hpp"

    7. 

  7. 

    8. 

  8. namespace ruin {

    9. 

  9. 

    10. 

  10. namespace detail {

    11. 

  11. 

    12. 

  12. namespace type_traits {

    13. 

  13. 

    14. 

  14. template < class S, class T, class = decltype(static_cast<T>(ruin::declval<S>())) >

    15. 

  15. static ruin::mpl::true_

    16. 

  16. is_static_castable_tester (int);

    17. 

  17. 

    18. 

  18. template < class, class >

    19. 

  19. static ruin::mpl::false_

    20. 

  20. is_static_castable_tester (...);

    21. 

  21. 

    22. 

  22. }} // namespace detail::type_traits

    23. 

  23. 

    24. 

  24. template < class Source, class Target >

    25. 

  25. struct is_static_castable

    26. 

  26. 	: public decltype(ruin::detail::type_traits::is_static_castable_tester<Source, Target>(0))

    27. 

  27. { };

    28. 

  28. 

    29. 

  29. }

    30. 

  30. 

    31. 

  31. #endif // RUIN_TYPE_TRAITS_IS_STATIC_CASTABLE_HPP_INCLUDED

    32. 

  32.