multiprecision/traits/is_variable_precision.hpp

0001 ///////////////////////////////////////////////////////////////////////////////
0002 //  Copyright 2018 John Maddock. Distributed under the Boost
0003 //  Software License, Version 1.0. (See accompanying file
0004 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0005
0006 #ifndef BOOST_MP_IS_VARIABLE_PRECISION_HPP
0007 #define BOOST_MP_IS_VARIABLE_PRECISION_HPP
0008
0009 #include <boost/multiprecision/detail/number_base.hpp>
0010
0011 namespace boost { namespace multiprecision { namespace detail {
0012
0013 template <class Backend>
0014 struct is_variable_precision : public std::integral_constant<bool, false>
0015 {};
0016
0017 template <class Backend, expression_template_option ExpressionTemplates>
0018 struct is_variable_precision<number<Backend, ExpressionTemplates> > : public is_variable_precision<Backend>
0019 {};
0020
0021 }
0022 }
0023 } // namespace boost::multiprecision::detail
0024
0025 #endif // BOOST_MP_IS_BACKEND_HPP