ceph/src/boost/libs/units/include/boost/units/is_dimensionless_unit.hpp

   1 // Boost.Units - A C++ library for zero-overhead dimensional analysis and
   2 // unit/quantity manipulation and conversion
   3 //
   4 // Copyright (C) 2003-2008 Matthias Christian Schabel
   5 // Copyright (C) 2008 Steven Watanabe
   6 //
   7 // Distributed under the Boost Software License, Version 1.0. (See
   8 // accompanying file LICENSE_1_0.txt or copy at
   9 // http://www.boost.org/LICENSE_1_0.txt)
  10
  11 #ifndef BOOST_UNITS_IS_DIMENSIONLESS_UNIT_HPP
  12 #define BOOST_UNITS_IS_DIMENSIONLESS_UNIT_HPP
  13
  14 /// \file
  15 /// \brief Check that a type is a dimensionless unit.
  16
  17 #include <boost/units/is_unit_of_dimension.hpp>
  18 #include <boost/units/units_fwd.hpp>
  19
  20 namespace boost {
  21
  22 namespace units {
  23
  24 /// Check that a type is a dimensionless unit.
  25 template<class T>
  26 struct is_dimensionless_unit :
  27     public is_unit_of_dimension<T,dimensionless_type>
  28 { };
  29
  30 } // namespace units
  31
  32 } // namespace boost
  33
  34 #endif // BOOST_UNITS_IS_DIMENSIONLESS_UNIT_HPP