/usr/include/linbox/blackbox/frobenius.h is in liblinbox-dev 1.4.2-3.
This file is owned by root:root, with mode 0o644.
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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 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 | /* linobx/blackbox/frobenuis.h
* Copyright(c) 2010 LinBox
* Written by Austin Lobo <alobo@cis.udel.edu> and
* B.D. Saunders <saunders@cis.udel.edu>
* ========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========
*/
/*! @file blackbox/frobenius.h
* @ingroup blackbox
* @brief NO DESC
*/
#ifndef __LINBOX_frobenius_H
#define __LINBOX_frobenius_H
#include "linbox/blackbox/blackbox-interface.h"
#include "linbox/blackbox/companion.h"
#include "linbox/blackbox/direct-sum.h"
#include <vector>
namespace LinBox
{
/// \ingroup blackbox
template <class Field_>
class Frobenius: public BlackboxInterface, public DirectSum<Companion<Field_> > {
public:
typedef Field_ Field;
Frobenius() { } // default constructor
/** Constructor.
* Build a matrix in Frobenius form whose block sizes are
* specified by vlist, generated from random polynomials
* @param F
* @param vlist diagonal-block sizes, positive ints in non-increasing order
*/
template <class VDegList>
Frobenius( const Field &F, const VDegList &vlist)
{ }
/** Constructor.
* Build a square, block-diagonal matrix as a direct sum of the companion
* matrices of the polynomials. The dimension is the sum of the degrees.
* @param pbegin iterator pointing to the start of a list of polynomials
* @param F
* @param pend iterator pointing after end of a list of polynomials
*/
template <class PolyIterator>
Frobenius( const Field &F, PolyIterator pbegin, PolyIterator pend)
{
this->_VB.resize((size_t)(pend - pbegin));
PolyIterator pp = pbegin;
typename std::vector<const Companion<Field>* >::iterator vp;
this->m = 0;
this->n = 0;
for(vp = this->_VB.begin(); vp != this->_VB.end(); ++vp,++pp) {
*vp = new Companion<Field>(F,*pp);
this->m += (*vp) -> rowdim();
this->n += (*vp) -> coldim();
}
}
/// destructor
~Frobenius()
{
typename std::vector< const Companion<Field>* >::iterator vp;
for(vp = this->_VB.begin(); vp != this->_VB.end(); ++vp)
delete (*vp);
}
template<typename _Tp1>
struct rebind {
typedef Frobenius<_Tp1> other;
};
}; // class Frobenius
}// Namespace LinBox
#endif //__LINBOX_frobenius_H
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