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