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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 | // Boost noncopyable.hpp header file --------------------------------------//
// (C) Copyright Beman Dawes 1999-2003. 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)
// See http://www.boost.org/libs/utility for documentation.
#ifndef BOOST_NONCOPYABLE_HPP_INCLUDED
#define BOOST_NONCOPYABLE_HPP_INCLUDED
#include <boost/config.hpp>
namespace boost {
// Private copy constructor and copy assignment ensure classes derived from
// class noncopyable cannot be copied.
// Contributed by Dave Abrahams
namespace noncopyable_ // protection from unintended ADL
{
class noncopyable
{
protected:
#ifndef BOOST_NO_DEFAULTED_FUNCTIONS
BOOST_CONSTEXPR noncopyable() = default;
~noncopyable() = default;
#else
noncopyable() {}
~noncopyable() {}
#endif
#ifndef BOOST_NO_DELETED_FUNCTIONS
noncopyable( const noncopyable& ) = delete;
noncopyable& operator=( const noncopyable& ) = delete;
#else
private: // emphasize the following members are private
noncopyable( const noncopyable& );
noncopyable& operator=( const noncopyable& );
#endif
};
}
typedef noncopyable_::noncopyable noncopyable;
} // namespace boost
#endif // BOOST_NONCOPYABLE_HPP_INCLUDED
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