/usr/include/linbox/ring/pid-ntl-zz_p.h is in liblinbox-dev 1.4.2-5build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 | /* Copyright (C) 2010 LinBox
* written by bds
*
*
*
* ========LICENCE========
* This file is part of the library LinBox.
*
* LinBox is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
* ========LICENCE========
*/
#ifndef __LINBOX_ntl_pid_zz_p_H
#define __LINBOX_ntl_pid_zz_p_H
#include "linbox/ring/ntl/ntl-lzz_p.h"
#include "linbox/util/debug.h"
#include "linbox/linbox-config.h"
#include "linbox/field/field-traits.h"
// Namespace in which all LinBox library code resides
namespace LinBox
{
template <class Ring>
struct ClassifyRing;
class NTL_PID_zz_p;
template<>
struct ClassifyRing<NTL_PID_zz_p> {
typedef RingCategories::ModularTag categoryTag;
};
/** \brief extend Wrapper of zz_p from NTL. Add PID functions
\ingroup ring
*/
struct NTL_PID_zz_p: public NTL_zz_p
{
protected: long _modulus;
public:
NTL_PID_zz_p(long pp, int exp = 1) :
NTL_zz_p(pp), _modulus(pp)
{
if( exp != 1 ) throw PreconditionFailed(LB_FILE_LOC,"exponent must be 1");
}
Element& gcd(Element& g, const Element& a, const Element& b) const
{ g = NTL::GCD(NTL::rep(a), NTL::rep(b));
g = NTL::GCD(NTL::rep(g), _modulus);
return g;
}
Element& gcdin(Element& a, const Element& b) const
{ return gcd(a,a, b); }
bool isUnit(const Element& a) const
{ return 1 == NTL::GCD(NTL::rep(a), _modulus); }
Element& div(Element& c, const Element& a, const Element& b) const
{ return c = NTL::rep(a)/NTL::GCD(NTL::rep(a),NTL::rep(b)); }
Element& divin(Element& a, const Element& b) const
{ return div(a, a, b); }
static inline double maxCardinality() { return (double)NTL_SP_BOUND; }
};
} // namespace LinBox
#endif // __LINBOX_ntl_pid_zz_p_H
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