ceph/src/boost/libs/icl/include/boost/icl/type_traits/has_inverse.hpp

   1 /*-----------------------------------------------------------------------------+
   2 Copyright (c) 2008-2009: Joachim Faulhaber
   3 +------------------------------------------------------------------------------+
   4    Distributed under the Boost Software License, Version 1.0.
   5       (See accompanying file LICENCE.txt or copy at
   6            http://www.boost.org/LICENSE_1_0.txt)
   7 +-----------------------------------------------------------------------------*/
   8 #ifndef BOOST_ICL_TYPE_TRAITS_HAS_INVERSE_HPP_JOFA_090205
   9 #define BOOST_ICL_TYPE_TRAITS_HAS_INVERSE_HPP_JOFA_090205
  10
  11 #include <boost/type_traits/is_signed.hpp>
  12 #include <boost/type_traits/is_floating_point.hpp>
  13
  14 namespace boost{ namespace icl
  15 {
  16
  17     template <class Type> struct has_inverse
  18     {
  19         typedef has_inverse<Type> type;
  20         BOOST_STATIC_CONSTANT(bool,
  21             value = (   boost::is_signed<Type>::value
  22                      || is_floating_point<Type>::value ) );
  23     };
  24
  25 }} // namespace boost icl
  26
  27 #endif // BOOST_ICL_TYPE_TRAITS_HAS_INVERSE_HPP_JOFA_090205
  28
  29