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