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// Copyright John Maddock 2018. // Use, modification and distribution are subject to the // Boost Software License, Version 1.0. (See accompanying file // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) // // Tools for operator on complex as well as scalar types. // #ifndef BOOST_MATH_TOOLS_COMPLEX_HPP #define BOOST_MATH_TOOLS_COMPLEX_HPP #include <boost/type_traits/is_complex.hpp> namespace boost { namespace math { namespace tools { // // Specialize this trait for user-defined complex types (ie Boost.Multiprecision): // template <class T> struct is_complex_type : public boost::is_complex<T> {}; // // Use this trait to typecast integer literals to something // that will interoperate with T: // template <class T, bool = is_complex_type<T>::value> struct integer_scalar_type { typedef int type; }; template <class T> struct integer_scalar_type<T, true> { typedef typename T::value_type type; }; template <class T, bool = is_complex_type<T>::value> struct unsigned_scalar_type { typedef unsigned type; }; template <class T> struct unsigned_scalar_type<T, true> { typedef typename T::value_type type; }; template <class T, bool = is_complex_type<T>::value> struct scalar_type { typedef T type; }; template <class T> struct scalar_type<T, true> { typedef typename T::value_type type; }; } } } #endif // BOOST_MATH_TOOLS_COMPLEX_HPP