bool.hpp 964 B

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  1. #ifndef BOOST_MPL_BOOL_HPP_INCLUDED
  2. #define BOOST_MPL_BOOL_HPP_INCLUDED
  3. // Copyright Aleksey Gurtovoy 2000-2004
  4. //
  5. // Distributed under the Boost Software License, Version 1.0.
  6. // (See accompanying file LICENSE_1_0.txt or copy at
  7. // http://www.boost.org/LICENSE_1_0.txt)
  8. //
  9. // See http://www.boost.org/libs/mpl for documentation.
  10. // $Id$
  11. // $Date$
  12. // $Revision$
  13. #include <boost/mpl/bool_fwd.hpp>
  14. #include <boost/mpl/integral_c_tag.hpp>
  15. #include <boost/mpl/aux_/config/static_constant.hpp>
  16. BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE_OPEN
  17. template< bool C_ > struct bool_
  18. {
  19. BOOST_STATIC_CONSTANT(bool, value = C_);
  20. typedef integral_c_tag tag;
  21. typedef bool_ type;
  22. typedef bool value_type;
  23. BOOST_CONSTEXPR operator bool() const { return this->value; }
  24. };
  25. #if !defined(BOOST_NO_INCLASS_MEMBER_INITIALIZATION)
  26. template< bool C_ >
  27. bool const bool_<C_>::value;
  28. #endif
  29. BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE_CLOSE
  30. #endif // BOOST_MPL_BOOL_HPP_INCLUDED