1 // Copyright (c) 2009-2016 Vladimir Batov.
2 // Use, modification and distribution are subject to the Boost Software License,
3 // Version 1.0. See http://www.boost.org/LICENSE_1_0.txt.
4 
5 #ifndef BOOST_CONVERT_DETAIL_IS_STRING_HPP
6 #define BOOST_CONVERT_DETAIL_IS_STRING_HPP
7 
8 #include <boost/convert/detail/range.hpp>
9 
10 namespace boost { namespace cnv
11 {
12     namespace detail
13     {
14         template<typename T, bool is_range_class> struct is_string : std::false_type {};
15 
16         template<typename T> struct is_string<T*, false>
17         {
18             static bool const value = cnv::is_char<T>::value;
19         };
20         template <typename T, std::size_t N> struct is_string<T [N], false>
21         {
22             static bool const value = cnv::is_char<T>::value;
23         };
24         template<typename T> struct is_string<T, /*is_range_class=*/true>
25         {
26             static bool const value = cnv::is_char<typename T::value_type>::value;
27         };
28     }
29     template<typename T> struct is_string : detail::is_string<
30         typename boost::remove_const<T>::type,
31         boost::is_class<T>::value && boost::cnv::is_range<T>::value> {};
32 }}
33 
34 #endif // BOOST_CONVERT_DETAIL_IS_STRING_HPP
35