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49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
// Boost noncopyable.hpp header file --------------------------------------//
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// (C) Copyright Beman Dawes 1999-2003. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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// See http://www.boost.org/libs/utility for documentation.
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#ifndef BOOST_CORE_NONCOPYABLE_HPP
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#define BOOST_CORE_NONCOPYABLE_HPP
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#include <boost/config.hpp>
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namespace boost {
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// Private copy constructor and copy assignment ensure classes derived from
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// class noncopyable cannot be copied.
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// Contributed by Dave Abrahams
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namespace noncopyable_ // protection from unintended ADL
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{
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class noncopyable
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{
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protected:
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#if !defined(BOOST_NO_CXX11_DEFAULTED_FUNCTIONS) && !defined(BOOST_NO_CXX11_NON_PUBLIC_DEFAULTED_FUNCTIONS)
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BOOST_CONSTEXPR noncopyable() = default;
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~noncopyable() = default;
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#else
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noncopyable() {}
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~noncopyable() {}
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#endif
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#if !defined(BOOST_NO_CXX11_DELETED_FUNCTIONS)
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noncopyable( const noncopyable& ) = delete;
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noncopyable& operator=( const noncopyable& ) = delete;
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#else
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private: // emphasize the following members are private
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noncopyable( const noncopyable& );
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noncopyable& operator=( const noncopyable& );
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#endif
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};
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}
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typedef noncopyable_::noncopyable noncopyable;
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} // namespace boost
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#endif // BOOST_CORE_NONCOPYABLE_HPP
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