set_width.h

 
//          Copyright John McFarlane 2018.
// Distributed under 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)
 
#if !defined(CNL_IMPL_DUPLEX_INTEGER_SET_WIDTH_H)
#define CNL_IMPL_DUPLEX_INTEGER_SET_WIDTH_H
 
#include "../num_traits/set_width.h"
#include "declaration.h"
#include "narrowest_integer.h"
#include "rep_of.h"
 
namespace cnl {
    namespace _impl {
        template<typename Upper, typename Lower, int Digits>
        struct set_width<_impl::duplex_integer<Upper, Lower>, Digits> {
            using word = _impl::rep_of_t<Upper>;
            using type = typename _impl::narrowest_integer<
                    Digits + !numbers::signedness_v<word>, word>::type;
        };
    }
}
 
#endif  // CNL_IMPL_DUPLEX_INTEGER_SET_WIDTH_H