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// Copyright (c) 2009-2020 Vladimir Batov.
// Use, modification and distribution are subject to the Boost Software License,
// Version 1.0. See


#include <boost/convert/detail/range.hpp>

namespace boost { namespace cnv
    namespace detail
        template<typename T, bool is_range_class> struct is_string : std::false_type {};

        template<typename T> struct is_string<T*, false>
            static bool BOOST_CONSTEXPR_OR_CONST value = cnv::is_char<T>::value;
        template <typename T, std::size_t N> struct is_string<T [N], false>
            static bool BOOST_CONSTEXPR_OR_CONST value = cnv::is_char<T>::value;
        template<typename T> struct is_string<T, /*is_range_class=*/true>
            static bool BOOST_CONSTEXPR_OR_CONST value = cnv::is_char<typename T::value_type>::value;
    template<typename T>
    struct is_string : detail::is_string<
        typename std::remove_const<T>::type,
        std::is_class<T>::value && cnv::is_range<T>::value>