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- //
- // detail/null_tss_ptr.hpp
- // ~~~~~~~~~~~~~~~~~~~~~~~
- //
- // Copyright (c) 2003-2019 Christopher M. Kohlhoff (chris at kohlhoff dot com)
- //
- // Distributed under the Boost Software License, Version 1.0. (See accompanying
- // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- //
-
- #ifndef ASIO_DETAIL_NULL_TSS_PTR_HPP
- #define ASIO_DETAIL_NULL_TSS_PTR_HPP
-
- #if defined(_MSC_VER) && (_MSC_VER >= 1200)
- # pragma once
- #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
- #include "asio/detail/config.hpp"
-
- #if !defined(ASIO_HAS_THREADS)
-
- #include "asio/detail/noncopyable.hpp"
-
- #include "asio/detail/push_options.hpp"
-
- namespace asio {
- namespace detail {
-
- template <typename T>
- class null_tss_ptr
- : private noncopyable
- {
- public:
- // Constructor.
- null_tss_ptr()
- : value_(0)
- {
- }
-
- // Destructor.
- ~null_tss_ptr()
- {
- }
-
- // Get the value.
- operator T*() const
- {
- return value_;
- }
-
- // Set the value.
- void operator=(T* value)
- {
- value_ = value;
- }
-
- private:
- T* value_;
- };
-
- } // namespace detail
- } // namespace asio
-
- #include "asio/detail/pop_options.hpp"
-
- #endif // !defined(ASIO_HAS_THREADS)
-
- #endif // ASIO_DETAIL_NULL_TSS_PTR_HPP
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