/usr/include/synfig-1.0/synfig/uniqueid.h is in libsynfig-dev 1.0.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/*! \file uniqueid.h
** \brief Template Header
**
** $Id$
**
** \legal
** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
**
** This package 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 package 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.
** \endlegal
*/
/* ========================================================================= */
/* === S T A R T =========================================================== */
#ifndef __SYNFIG_UNIQUEID_H
#define __SYNFIG_UNIQUEID_H
/* === H E A D E R S ======================================================= */
/* === M A C R O S ========================================================= */
/* === T Y P E D E F S ===================================================== */
/* === C L A S S E S & S T R U C T S ======================================= */
namespace synfig {
class UniqueIDLessThan;
/*! \class UniqueID
** \brief \todo
*/
class UniqueID
{
friend class UniqueIDLessThan;
int id_;
explicit UniqueID(int id_):id_(id_) { }
static int next_id();
public:
//! Returns the internal unique identifier for this object.
/*! The return value from this isn't really useful for
** much other than debug output. Nonetheless, that is
** one step above useless, so here it is. */
const int &get_uid()const { return id_; }
UniqueID():id_(next_id()) { }
void make_unique() { id_=next_id(); }
static const UniqueID nil() { return UniqueID(0); }
operator bool()const { return static_cast<bool>(id_); }
void mimic(const UniqueID& x) { id_=x.id_; }
bool operator==(const UniqueID &rhs)const { return id_==rhs.id_; }
bool operator!=(const UniqueID &rhs)const { return id_!=rhs.id_; }
bool operator<(const UniqueID &rhs)const { return id_<rhs.id_; }
}; // END of class UniqueID
/*! \class UniqueIDLessThan
** \brief A function class used for sorting based on UniqueIDs
*/
class UniqueIDLessThan
{
public:
bool operator()(const UniqueID &lhs, const UniqueID &rhs)const
{ return lhs.id_<rhs.id_; }
};
}; // END of namespace synfig
/* === E N D =============================================================== */
#endif
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