ecency-mobile/ios/Pods/boost-for-react-native/boost/convert/detail/is_string.hpp

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1.2 KiB
C++

// Copyright (c) 2009-2016 Vladimir Batov.
// Use, modification and distribution are subject to the Boost Software License,
// Version 1.0. See http://www.boost.org/LICENSE_1_0.txt.
#ifndef BOOST_CONVERT_DETAIL_IS_STRING_HPP
#define BOOST_CONVERT_DETAIL_IS_STRING_HPP
#include <boost/convert/detail/range.hpp>
namespace boost { namespace cnv
{
namespace detail
{
template<typename T, bool is_range_class> struct is_string : mpl::false_ {};
template<typename T> struct is_string<T*, false>
{
static bool const value = cnv::is_char<T>::value;
};
template <typename T, std::size_t N> struct is_string<T [N], false>
{
static bool const value = cnv::is_char<T>::value;
};
template<typename T> struct is_string<T, /*is_range_class=*/true>
{
static bool const value = cnv::is_char<typename T::value_type>::value;
};
}
template<typename T> struct is_string : detail::is_string<
typename remove_const<T>::type,
boost::is_class<T>::value && boost::cnv::is_range<T>::value> {};
}}
#endif // BOOST_CONVERT_DETAIL_IS_STRING_HPP