| 1 | // |
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| 2 | // detail/type_traits.hpp |
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| 3 | // ~~~~~~~~~~~~~~~~~~~~~~ |
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| 4 | // |
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| 5 | // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com) |
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| 6 | // |
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| 7 | // Distributed under the Boost Software License, Version 1.0. (See accompanying |
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| 8 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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| 9 | // |
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| 10 | |
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| 11 | #ifndef BOOST_ASIO_DETAIL_TYPE_TRAITS_HPP |
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| 12 | #define BOOST_ASIO_DETAIL_TYPE_TRAITS_HPP |
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| 13 | |
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| 14 | #if defined(_MSC_VER) && (_MSC_VER >= 1200) |
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| 15 | # pragma once |
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| 16 | #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) |
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| 17 | |
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| 18 | #include <boost/asio/detail/config.hpp> |
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| 19 | |
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| 20 | #if defined(BOOST_ASIO_HAS_STD_TYPE_TRAITS) |
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| 21 | # include <type_traits> |
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| 22 | #else // defined(BOOST_ASIO_HAS_TYPE_TRAITS) |
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| 23 | # include <boost/type_traits/add_const.hpp> |
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| 24 | # include <boost/type_traits/is_const.hpp> |
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| 25 | # include <boost/type_traits/is_convertible.hpp> |
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| 26 | # include <boost/type_traits/is_function.hpp> |
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| 27 | # include <boost/type_traits/is_same.hpp> |
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| 28 | # include <boost/type_traits/remove_pointer.hpp> |
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| 29 | # include <boost/type_traits/remove_reference.hpp> |
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| 30 | # include <boost/utility/enable_if.hpp> |
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| 31 | #endif // defined(BOOST_ASIO_HAS_TYPE_TRAITS) |
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| 32 | |
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| 33 | namespace boost { |
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| 34 | namespace asio { |
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| 35 | |
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| 36 | #if defined(BOOST_ASIO_HAS_STD_TYPE_TRAITS) |
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| 37 | using std::add_const; |
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| 38 | using std::enable_if; |
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| 39 | using std::is_const; |
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| 40 | using std::is_convertible; |
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| 41 | using std::is_function; |
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| 42 | using std::is_same; |
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| 43 | using std::remove_pointer; |
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| 44 | using std::remove_reference; |
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| 45 | #else // defined(BOOST_ASIO_HAS_STD_TYPE_TRAITS) |
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| 46 | using boost::add_const; |
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| 47 | template <bool Condition, typename Type = void> |
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| 48 | struct enable_if : boost::enable_if_c<Condition, Type> {}; |
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| 49 | using boost::is_const; |
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| 50 | using boost::is_convertible; |
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| 51 | using boost::is_function; |
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| 52 | using boost::is_same; |
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| 53 | using boost::remove_pointer; |
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| 54 | using boost::remove_reference; |
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| 55 | #endif // defined(BOOST_ASIO_HAS_STD_TYPE_TRAITS) |
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| 56 | |
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| 57 | } // namespace asio |
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| 58 | } // namespace boost |
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| 59 | |
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| 60 | #endif // BOOST_ASIO_DETAIL_TYPE_TRAITS_HPP |
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| 61 | |
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