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/*
* Methods for the class Diff_sx2
*
* (see file diff.h for documentation).
*
*/
/*
* Copyright (c) 2005 Jerome Novak
*
* This file is part of LORENE.
*
* LORENE is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* LORENE 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 LORENE; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
char diff_sx2_C[] = "$Header: /cvsroot/Lorene/C++/Source/Diff/diff_sx2.C,v 1.4 2014/10/13 08:52:51 j_novak Exp $" ;
/*
* $Id: diff_sx2.C,v 1.4 2014/10/13 08:52:51 j_novak Exp $
* $Log: diff_sx2.C,v $
* Revision 1.4 2014/10/13 08:52:51 j_novak
* Lorene classes and functions now belong to the namespace Lorene.
*
* Revision 1.3 2014/10/06 15:13:05 j_novak
* Modified #include directives to use c++ syntax.
*
* Revision 1.2 2007/12/11 15:28:11 jl_cornou
* Jacobi(0,2) polynomials partially implemented
*
* Revision 1.1 2005/01/10 16:34:52 j_novak
* New class for 1D mono-domain differential operators.
*
*
* $Header: /cvsroot/Lorene/C++/Source/Diff/diff_sx2.C,v 1.4 2014/10/13 08:52:51 j_novak Exp $
*
*/
// C headers
#include <cassert>
#include <cstdlib>
// Lorene headers
#include "diff.h"
#include "proto.h"
namespace Lorene {
void sxp12_1d(int, double**, int) ;
namespace {
int nap = 0 ;
Matrice* tab[MAX_BASE*Diff::max_points] ;
int nr_done[Diff::max_points] ;
}
Diff_sx2::Diff_sx2(int base_r, int nr) : Diff(base_r, nr) {
initialize() ;
assert (base != R_CHEB) ;
}
Diff_sx2::Diff_sx2(const Diff_sx2& diff_in) : Diff(diff_in) {
assert (nap != 0) ;
assert (base != R_CHEB) ;
}
Diff_sx2::~Diff_sx2() {}
void Diff_sx2::initialize() {
if (nap == 0) {
for (int i=0; i<max_points; i++) {
nr_done[i] = -1 ;
for (int j=0; j<MAX_BASE; j++)
tab[j*max_points+i] = 0x0 ;
}
nap = 1 ;
}
return ;
}
void Diff_sx2::operator=(const Diff_sx2& diff_in) {
assert (nap != 0) ;
Diff::operator=(diff_in) ;
}
const Matrice& Diff_sx2::get_matrice() const {
bool done = false ;
int indice ;
for (indice =0; indice<max_points; indice++) {
if (nr_done[indice] == npoints) {
if (tab[base*max_points + indice] != 0x0) done = true ;
break ;
}
if (nr_done[indice] == -1)
break ;
}
if (!done) { //The computation must be done ...
if (indice == max_points) {
cerr << "Diff_sx2::get_matrice() : no space left!!" << '\n'
<< "The value of Diff.max_points must be increased..." << endl ;
abort() ;
}
nr_done[indice] = npoints ;
tab[base*max_points + indice] = new Matrice(npoints, npoints) ;
Matrice& resu = *tab[base*max_points + indice] ;
resu.set_etat_qcq() ;
double* vect = new double[npoints] ;
for (int i=0; i<npoints; i++) {
for (int j=0; j<npoints; j++)
vect[j] = 0. ;
vect[i] = 1. ;
if (base == R_JACO02) {
sxp12_1d(npoints, &vect, base << TRA_R) ;
for (int j=0; j<npoints; j++)
resu.set(j,i) = vect[j] ;
}
else {
sx2_1d(npoints, &vect, base << TRA_R) ;
for (int j=0; j<npoints; j++)
resu.set(j,i) = vect[j] ;
}
}
delete [] vect ;
}
return *tab[base*max_points + indice] ;
}
ostream& Diff_sx2::operator>>(ostream& ost) const {
ost << " Division by x^2 " << endl ;
return ost ;
}
}
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