// Boost.Signals2 library
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// Copyright Frank Mori Hess 2007-2008.
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// Use, modification and
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// distribution is subject to the Boost Software License, Version
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// 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// For more information, see http://www.boost.org
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#ifndef BOOST_SIGNALS2_SIGNAL_BASE_HPP
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#define BOOST_SIGNALS2_SIGNAL_BASE_HPP
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#include <boost/noncopyable.hpp>
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#include <boost/shared_ptr.hpp>
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namespace boost {
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namespace signals2 {
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class slot_base;
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class signal_base : public noncopyable
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{
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public:
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friend class slot_base;
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virtual ~signal_base() {}
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protected:
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virtual shared_ptr<void> lock_pimpl() const = 0;
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};
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} // end namespace signals2
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} // end namespace boost
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#endif // BOOST_SIGNALS2_SIGNAL_BASE_HPP
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