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/*
* Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
* Copyright (C) 2009-2010 - DIGITEO - Scilab Consortium Operational Team
*
* 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 "stack-c.h"
#include "Scierror.h"
#include "localization.h"
#include "sciprint.h"
#include "api_scilab.h"
#include "MALLOC.h"
int read_write_bsparse(char *fname,unsigned long fname_len)
{
SciErr sciErr;
int i = 0;
int j = 0;
int k = 0;
//first variable info : real matrix of double
int iRows = 0;
int iCols = 0;
int *piAddr = NULL;
int iNbItem = 0;
int* piNbItemRow = NULL;
int* piColPos = NULL;
int iCol = 0;
int iNewCol = 0;
int iNewItem = 0;
int* piNewRow = NULL;
int* piNewCol = NULL;
//check input and output arguments
CheckRhs(1,1);
CheckLhs(1,1);
//get variable address of the first input argument
sciErr = getVarAddressFromPosition(pvApiCtx, 1, &piAddr);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
//get size and data from Scilab memory
sciErr = getBooleanSparseMatrix(pvApiCtx, piAddr, &iRows, &iCols, &iNbItem, &piNbItemRow, &piColPos);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
//Do something with data
//convert %T -> %F and %F -> %T
iNewItem = (iRows * iCols) - iNbItem;
piNewRow = (int*)MALLOC(sizeof(int) * iRows);
piNewCol = (int*)MALLOC(sizeof(int) * iNewItem);
for(i = 0 ; i < iRows ; i++)
{
piNewRow[i] = iCols - piNbItemRow[i];
for(j = 0 ; j < iCols ; j++)
{
int iFind = 0;
for(k = 0 ; k < piNbItemRow[i] ; k++)
{
if(piColPos[iCol + k] == (j + 1))
{
iFind = 1;
break;
}
}
if(iFind == 0)
{
piNewCol[iNewCol++] = (j + 1);
}
}
iCol += piNbItemRow[i];
}
sciErr = createBooleanSparseMatrix(pvApiCtx, Rhs + 1, iRows, iCols, iNewItem, piNewRow, piNewCol);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
LhsVar(1) = Rhs + 1;
return 0;
}
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