/usr/include/linbox/algorithms/dense-container.h is in liblinbox-dev 1.1.6~rc0-4.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/* linbox/algorithms/blackbox-container.h
* Copyright (C) 1999, 2001 Jean-Guillaume Dumas, Bradford Hovinen
*
* Written by Jean-Guillaume Dumas <Jean-Guillaume.Dumas@imag.fr>,
* Bradford Hovinen <hovinen@cis.udel.edu>
*
* ------------------------------------
*
* See COPYING for license information.
*/
#ifndef __BLACKBOX_CONTAINER_H
#define __BLACKBOX_CONTAINER_H
#include <linbox/randiter/archetype.h>
#include <linbox/algorithms/blackbox-container-base.h>
#include <linbox/util/timer.h>
namespace LinBox
{
/// \brief Limited doc so far.
template<class Field, class Vector, class RandIter = typename Field::RandIter>
class DenseContainer : public BlackboxContainerBase<Field, Vector> {
public:
typedef typename BlackboxContainerBase<Field, Vector>::Blackbox Blackbox;
DenseContainer () {}
DenseContainer(const Blackbox * D, typename Field::Element * U, size_t ldu,
const Field &F, const Vector &u0)
: BlackboxContainerBase<Field, Vector> (D, F)
{
init (u0, u0); w = u;
Up = U;
_ldu = ldu;
#ifdef INCLUDE_TIMING
_applyTime = _dotTime = 0.0;
#endif
}
DenseContainer(const Blackbox * D, typename Field::Element * U, size_t ldu,
const Field &F, const Vector &u0, const Vector& v0)
: BlackboxContainerBase<Field, Vector> (D, F)
{
// JGD 22.03.03
// init (u0, v0); w = u;
init (u0, v0); w = v;
Up = U;
_ldu = ldu;
#ifdef INCLUDE_TIMING
_applyTime = _dotTime = 0.0;
#endif
}
DenseContainer(const Blackbox * D, typename Field::Element * U, size_t ldu,
const Field &F, RandIter &g)
: BlackboxContainerBase<Field, Vector> (D, F)
{
init (g); w = u;
Up = U;
_ldu = ldu;
#ifdef INCLUDE_TIMING
_applyTime = _dotTime = 0.0;
#endif
}
#ifdef INCLUDE_TIMING
double applyTime () const { return _applyTime; }
double dotTime () const { return _dotTime; }
#endif // INCLUDE_TIMING
protected:
Vector w;
typename Field::Element * Up;
size_t _ldu;
#ifdef INCLUDE_TIMING
Timer _timer;
double _applyTime, _dotTime;
#endif // INCLUDE_TIMING
void _launch () {
typename Vector::iterator it;
Integer tmp;
size_t i;
if (casenumber) {
#ifdef INCLUDE_TIMING
_timer.start ();
#endif // INCLUDE_TIMING
_BB->apply (v, w); // GV
#ifdef INCLUDE_TIMING
_timer.stop ();
_applyTime += _timer.realtime ();
_timer.start ();
#endif // INCLUDE_TIMING
// Copy of v into a row of U
it = v.begin();
i=0;
for (; it!=v.end(); it++, i++){
*(Up+i) = *it;
_F.convert(tmp,*it);
cerr<<" copie of "<<tmp;
}
cerr<<endl;
Up += _ldu;
_VD.dot (_value, u, v); // GV
#ifdef INCLUDE_TIMING
_timer.stop ();
_dotTime += _timer.realtime ();
#endif // INCLUDE_TIMING
casenumber = 0;
} else {
#ifdef INCLUDE_TIMING
_timer.start ();
#endif // INCLUDE_TIMING
_BB->apply (w, v); // GV
// Copy of v into a row of U
it = w.begin();
i=0;
for (; it!=w.end(); it++, i++){
_F.convert(tmp,*it);
cerr<<" copie of "<<tmp;
*(Up+i) = *it;
}
cerr<<endl;
Up += _ldu;
#ifdef INCLUDE_TIMING
_timer.stop ();
_applyTime += _timer.realtime ();
_timer.start ();
#endif // INCLUDE_TIMING
_VD.dot (_value, u, w); // GV
#ifdef INCLUDE_TIMING
_timer.stop ();
_dotTime += _timer.realtime ();
#endif // INCLUDE_TIMING
casenumber = 1;
}
}
void _wait () {}
};
}
#endif // __BLACKBOX_CONTAINER_H
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