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