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// Copyright 2019 Hans Dembinski
//
// 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)
#ifndef BOOST_HISTOGRAM_DETAIL_REPLACE_TYPE_HPP
#define BOOST_HISTOGRAM_DETAIL_REPLACE_TYPE_HPP
#include <boost/core/use_default.hpp>
#include <string>
#include <type_traits>
namespace boost {
namespace histogram {
namespace detail {
template <class T, class From, class To>
using replace_type = std::conditional_t<std::is_same<T, From>::value, To, T>;
template <class T, class Default>
using replace_default = replace_type<T, boost::use_default, Default>;
template <class T>
using replace_cstring = replace_type<T, const char*, std::string>;
} // namespace detail
} // namespace histogram
} // namespace boost
#endif