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/*
* Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
* Copyright (C) 2008-2008 - INRIA - Allan SIMON
*
* This file must be used under the terms of the CeCILL.
* This source file is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at
* http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
*
*/
#include <stdlib.h>
#include <string.h>
#include "matrixDivision.h"
void zrdivma( doubleComplex* in1, int lines1, int columns1 ,
doubleComplex* in2, int lines2, int columns2 ,
doubleComplex* out )
{
char cNorm = 0;
int iExit = 0;
/*temporary variables*/
int iWork = 0;
int iInfo = 0;
int iMax = 0;
double dblRcond = 0;
double dblEps = 0;
double dblAnorm = 0;
doubleComplex *poAf = NULL;
doubleComplex *poAt = NULL;
doubleComplex *poBt = NULL;
doubleComplex *poDwork = NULL;
int *pRank = NULL;
int *pIpiv = NULL;
int *pJpvt = NULL;
double *pRwork = NULL;
iWork = max(2*columns2, min(lines2, columns2) + max(2 * min(lines2, columns2), max(lines2 + 1, min(lines2, columns2) + lines1)));
/* Array allocations*/
poAf = (doubleComplex*)malloc(sizeof(doubleComplex) *(unsigned int) lines2 *(unsigned int) columns2);
poAt = (doubleComplex*)malloc(sizeof(doubleComplex) * (unsigned int)lines2 *(unsigned int) columns2);
poBt = (doubleComplex*)malloc(sizeof(doubleComplex) *(unsigned int) max(lines2, columns2) *(unsigned int) lines1);
pRank = (int*)malloc(sizeof(int));
pIpiv = (int*)malloc(sizeof(int) *(unsigned int) columns2);
pJpvt = (int*)malloc(sizeof(int) *(unsigned int) lines2);
pRwork = (double*)malloc(sizeof(double) * 2 *(unsigned int) lines2);
cNorm = '1';
poDwork = (doubleComplex*)malloc(sizeof(doubleComplex) *(unsigned int) iWork);
dblEps = getRelativeMachinePrecision() ;
dblAnorm = C2F(zlange)(&cNorm, &lines2, &columns2, in2, &lines2, poDwork);
/* hermitian tranpose A (transpose + conjugate )*/
ztransposea(in2, lines2, columns2, poAt);
zconja ( poAt , lines2*columns2 , poAt );
{
int i,j,ij,ji;
for(j = 0 ; j < lines1 ; j++)
{
for(i = 0 ; i < columns2 ; i++)
{
ij = i + j * max(lines2, columns2);
ji = j + i * lines1;
poBt[ij] = DoubleComplex (zreals ( in1[ji] ) , - zimags ( in1[ji] ) );
}
}
}
if(lines2 == columns2)
{
cNorm = 'F';
C2F(zlacpy)(&cNorm, &columns2, &columns2, poAt, &columns1, poAf, &columns2);
C2F(zgetrf)(&columns2, &columns2, poAf, &columns2, pIpiv, &iInfo);
if(iInfo == 0)
{
cNorm = '1';
C2F(zgecon)(&cNorm, &columns2, poAf, &columns2, &dblAnorm,
&dblRcond, poDwork, pRwork, &iInfo);
if(dblRcond > sqrt(dblEps))
{
cNorm = 'N';
C2F(zgetrs)(&cNorm, &columns2, &lines1, poAf, &columns2, pIpiv, poBt, &columns2, &iInfo);
{
int i,j,ij,ji;
for(j = 0 ; j < lines2 ; j++)
{
for(i = 0 ; i < lines1 ; i++)
{
ij = i + j * lines1;
ji = j + i * max(lines2, columns2);
out[ij] = DoubleComplex ( zreals( poBt[ji]) , -zimags ( poBt[ji]));
}
}
}
iExit = 1;
}
}
}
if(iExit == 0)
{
dblRcond = sqrt(dblEps);
cNorm = 'F';
iMax = max(lines2, columns2);
memset(pJpvt, 0x00,(unsigned int) sizeof(int) *(unsigned int) lines2);
C2F(zgelsy)(&columns2, &lines2, &lines1, poAt, &columns2, poBt, &iMax,
pJpvt, &dblRcond, &pRank[0], poDwork, &iWork, pRwork, &iInfo);
if(iInfo == 0)
{
/*// TransposeRealMatrix(pBt, lines1, lines2, _pdblRealOut, Max(lines1,columns1), lines2);
//Mega caca de la mort qui tue des ours a mains nues
//mais je ne sais pas comment le rendre "beau" :(*/
{
int i,j,ij,ji;
for(j = 0 ; j < lines2 ; j++)
{
for(i = 0 ; i < lines1 ; i++)
{
ij = i + j * lines1;
ji = j + i * max(lines2, columns2);
out[ij] = DoubleComplex ( zreals( poBt[ji]) , -zimags ( poBt[ji]));
}
}
}
}
}
free(poAf);
free(poAt);
free(poBt);
free(pRank);
free(pIpiv);
free(pJpvt);
free(pRwork);
free(poDwork);
}
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