/usr/include/dar/deci.hpp is in libdar-dev 2.4.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// dar - disk archive - a backup/restoration program
// Copyright (C) 2002-2052 Denis Corbin
//
// 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// to contact the author : http://dar.linux.free.fr/email.html
/*********************************************************************/
// $Id: deci.hpp,v 1.12 2011/01/09 17:25:58 edrusb Rel $
//
/*********************************************************************/
/// \file deci.hpp
/// \brief manages the decimal representation of infinint
/// \ingroup Tools
#ifndef DECI_HPP
#define DECI_HPP
#include "/usr/include/dar/libdar_my_config.h"
#include <iostream>
#include "/usr/include/dar/storage.hpp"
#include "/usr/include/dar/infinint.hpp"
namespace libdar
{
/// \ingroup Tools
/// @}
/// decimal class, convert infinint from and to decimal represention
/// the class contains the decimal representation of an integer
/// and can produce a readable string to display the corresponding
/// integer it can also produce a computer value corresponding to
/// the decimal value. In the other side, objects of this class can
/// be built from a integer as well as from a string representing
/// the decimals of an integer.
class deci
{
public :
/// constructor to build a "deci" object from a string representing decimals
deci(std::string s);
/// constructor to build a "deci" from an infinint
deci(const infinint & x);
/// copy constructor
deci(const deci & ref)
{ E_BEGIN; copy_from(ref); E_END("deci::deci", "deci"); };
/// destructor
~deci()
{ E_BEGIN; detruit(); E_END("deci::~deci", ""); };
/// copy operator
const deci & operator = (const deci & ref)
{ E_BEGIN; detruit(); copy_from(ref); return *this; E_END("deci::operator = ", ""); };
/// this produce a infinint from the decimal stored in the current object
infinint computer() const;
/// this produce a string fromr the decimal stored in the current object
std::string human() const;
private :
storage *decimales;
void detruit();
void copy_from(const deci & ref);
void reduce();
};
/// specific << operator to use infinint in std::ostream
/// including "deci.hpp" let this operator available so you can
/// display infinint with the << std::ostream operator as you can
/// do for standard types.
/// \ingroup Tools
extern std::ostream & operator << (std::ostream & ref, const infinint & arg);
/// @}
} // end of namespace
#endif
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