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QLD.cc
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1996-09-28
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// QLD.cc -*- C++ -*-
/*
Copyright (C) 1992, 1993, 1994, 1995 John W. Eaton
This file is part of Octave.
Octave 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, or (at your option) any
later version.
Octave 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 Octave; see the file COPYING. If not, write to the Free
Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <math.h>
#include <iostream.h>
#include "dMatrix.h"
#include "dColVector.h"
#include "dRowVector.h"
#include "QLD.h"
#include "f77-uscore.h"
extern "C"
{
int F77_FCN (qld) (int*, int*, int*, int*, int*, double*, double*,
double*, double*, double*, double*, double*,
double*, int*, int*, int*, double*, int*, int*,
int*);
}
Vector
QLD::minimize (double& objf, int& inform)
{
int n = x.capacity ();
Matrix A1 = lc.eq_constraint_matrix ();
Vector b1 = lc.eq_constraint_vector ();
Matrix A2 = lc.ineq_constraint_matrix ();
Vector b2 = lc.ineq_constraint_vector ();
int me = A1.rows ();
int m = me + A2.rows ();
cout << "n: " << n << "\n";
cout << "m: " << m << "\n";
cout << "me: " << me << "\n";
A1.stack (A2);
b1.stack (b2);
int lwar = n*(3*n + 15)/2 + m + 100;
int liwar = n + 100;
double *war = new double [lwar];
int *iwar = new int [liwar];
iwar[0] = 0;
double *u = new double [m+n+n + 100];
int iout = 0;
double *px = x.fortran_vec ();
double *ph = H.fortran_vec ();
cout << x;
cout << H;
cout << c;
double *pc = 0;
if (c.capacity () > 0)
pc = c.fortran_vec ();
double *pa = 0;
if (A1.rows () > 0 && A1.columns () > 0)
pa = A1.fortran_vec ();
double *pb = 0;
if (b1.capacity () > 0)
pb = b1.fortran_vec ();
Vector xlb = bnds.lower_bounds ();
Vector xub = bnds.upper_bounds ();
if (xlb.capacity () <= 0)
{
xlb.resize (n, -1.0e30);
xub.resize (n, 1.0e30);
}
double *pxl = xlb.fortran_vec ();
double *pxu = xub.fortran_vec ();
int mmax = m > 0 ? m : 1;
iprint = 1;
F77_FCN (qld) (&m, &me, &mmax, &n, &n, ph, pc, pa, pb, pxl, pxu, px,
u, &iout, &inform, &iprint, war, &lwar, iwar, &liwar);
delete war;
delete iwar;
delete u;
objf = (x.transpose () * H * x) / 2.0;
if (c.capacity () > 0)
objf += c.transpose () * x;
return x;
}
void
QLD::set_default_options (void)
{
iprint = 0;
}
/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; page-delimiter: "^/\\*" ***
;;; End: ***
*/