/usr/include/givaro/givindeter.h is in libgivaro-dev 4.0.2-8ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// $Source: /var/lib/cvs/Givaro/src/library/poly1/givindeter.h,v $
// Copyright(c)'1994-2009 by The Givaro group
// This file is part of Givaro.
// Givaro is governed by the CeCILL-B license under French law
// and abiding by the rules of distribution of free software.
// see the COPYRIGHT file for more details.
// Authors: T. Gautier
// $Id: givindeter.h,v 1.6 2011-02-02 16:23:56 briceboyer Exp $
// ==========================================================================
/** @file givindeter.h
* @ingroup poly1
* @brief indeterminates for polynomial manipulation
*/
#ifndef __GIVARO_indeter_H
#define __GIVARO_indeter_H
#include <iostream>
#include <string>
namespace Givaro {
//! Indeterminate
class Indeter {
public :
// -- Cstor: recopy the string
Indeter(const std::string & x="") : name(x){}
// -- Cstor: recopy the string
Indeter(const char * x) : name(x){}
// -- Cstor of recopy
Indeter(const Indeter& s): name(s.name) {}
// -- Dstor
~Indeter(){}
// -- assignement
Indeter& operator= (const Indeter& s);
// -- Comparizon operators:
// all comparizons are based on this virtual method,
// which returns : -1 iff *this < b, 0 iff *this == b and
// +1 else. This comparizon method gives the natural order
// for multivariate polynomials.
int compare(const Indeter& b) const;
// -- methods
friend std::ostream& operator<< (std::ostream& o, const Indeter& X);
friend std::istream& operator>> (std::istream& o, Indeter& X);
protected:
std::string name;
};
//! @bug put elsewere. Inline members functions :
inline int operator==(const Indeter& i1, const Indeter &i2)
{ return i1.compare(i2) ==0; }
inline int operator!=(const Indeter& i1, const Indeter &i2)
{ return i1.compare(i2) !=0; }
inline int operator<= (const Indeter& i1, const Indeter &i2)
{ return i1.compare(i2) <=0; }
inline int operator< (const Indeter& i1, const Indeter &i2)
{ return i1.compare(i2) <0; }
inline int operator>= (const Indeter& i1, const Indeter &i2)
{ return i1.compare(i2) >=0; }
inline int operator> (const Indeter& i1, const Indeter &i2)
{ return i1.compare(i2) >0; }
} // Givaro
#endif // __GIVARO_indeter_H
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