closure_as_bool.hpp 1.1 KB

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  1. // Boost.Geometry (aka GGL, Generic Geometry Library)
  2. // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
  3. // Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
  4. // Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
  5. // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
  6. // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
  7. // Use, modification and distribution is subject to the Boost Software License,
  8. // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
  9. // http://www.boost.org/LICENSE_1_0.txt)
  10. #ifndef BOOST_GEOMETRY_UTIL_CLOSURE_AS_BOOL_HPP
  11. #define BOOST_GEOMETRY_UTIL_CLOSURE_AS_BOOL_HPP
  12. #include <boost/geometry/core/closure.hpp>
  13. namespace boost { namespace geometry
  14. {
  15. template<closure_selector Closure>
  16. struct closure_as_bool
  17. {};
  18. template<>
  19. struct closure_as_bool<closed>
  20. {
  21. static const bool value = true;
  22. };
  23. template<>
  24. struct closure_as_bool<open>
  25. {
  26. static const bool value = false;
  27. };
  28. }} // namespace boost::geometry
  29. #endif // BOOST_GEOMETRY_UTIL_CLOSURE_AS_BOOL_HPP