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/*
* Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
* Copyright (C) 2008 - INRIA - Arnaud TORSET
*
* 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 "spec.h"
void cspec2a(floatComplex* in, int rows, floatComplex* eigenvalues,floatComplex* eigenvectors){
/* As we use Lapack to find the eigenvalues, we must cast the floatComplex input into doubleComplex
and the doubleComplex outputs of dspeca into floatComplex*/
int i;
doubleComplex* dblin;
doubleComplex* dbleigenvalues,*dbleigenvectors;
dblin=(doubleComplex*)malloc((unsigned int)(rows*rows)*sizeof(doubleComplex));
dbleigenvalues=(doubleComplex*)malloc((unsigned int)(rows*rows)*sizeof(doubleComplex));
dbleigenvectors=(doubleComplex*)malloc((unsigned int)(rows*rows)*sizeof(doubleComplex));
for (i=0;i<rows*rows;i++) dblin[i]=DoubleComplex((double)creals(in[i]),(double)cimags(in[i]));
zspec2a(dblin,rows,dbleigenvalues,dbleigenvectors);
for (i=0;i<rows*rows;i++) eigenvalues[i]=FloatComplex((float)zreals(dbleigenvalues[i]),(float)zimags(dbleigenvalues[i]));
for (i=0;i<rows*rows;i++) eigenvectors[i]=FloatComplex((float)zreals(dbleigenvectors[i]),(float)zimags(dbleigenvectors[i]));
}
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