64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
/*
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* Copyright (C) 2011 Sakari Bergen <sakari.bergen@beatwaves.net>
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* Copyright (C) 2013 Paul Davis <paul@linuxaudiosystems.com>
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* Copyright (C) 2014 John Emmas <john@creativepost.co.uk>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __ardour_comparable_shared_ptr_h__
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#define __ardour_comparable_shared_ptr_h__
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#include "ardour/libardour_visibility.h"
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namespace ARDOUR {
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template<typename T>
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class /*LIBARDOUR_API*/ ComparableSharedPtr : public std::shared_ptr<T>
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, public boost::less_than_comparable<ComparableSharedPtr<T> >
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{
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public:
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ComparableSharedPtr () {}
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template<class Y>
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explicit ComparableSharedPtr (Y * p) : std::shared_ptr<T> (p) {}
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template<class Y, class D>
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ComparableSharedPtr (Y * p, D d) : std::shared_ptr<T> (p, d) {}
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template<class Y, class D, class A>
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ComparableSharedPtr (Y * p, D d, A a) : std::shared_ptr<T> (p, d, a) {}
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ComparableSharedPtr (ComparableSharedPtr const & r) : std::shared_ptr<T> (r) {}
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ComparableSharedPtr& operator=(ComparableSharedPtr const& r) {
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std::shared_ptr<T>(r).swap(*this);
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return *this;
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}
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template<class Y>
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ComparableSharedPtr(ComparableSharedPtr<Y> const & r) : std::shared_ptr<T> (r) {}
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template<class Y>
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ComparableSharedPtr(ComparableSharedPtr<Y> const & r, T * p) : std::shared_ptr<T> (r, p) {}
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template<class Y>
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bool operator< (ComparableSharedPtr<Y> const & other) const { return **this < *other; }
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};
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} // namespace ARDOUR
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#endif // __ardour_comparable_shared_ptr_h__
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