Boolean writing (Scilab gateway)
How to write matrices of boolean.
Syntax
Input argument profile:
SciErr createMatrixOfBoolean(void* _pvCtx, int _iVar, int _iRows, int _iCols, const int* _piBool)
Named variable profile:
SciErr createNamedMatrixOfBoolean(void* _pvCtx, const char* _pstName, int _iRows, int _iCols, const int* _piBool)
Arguments
- _pvCtx
Scilab environment pointer, pass in "pvApiCtx" provided by api_scilab.h.
- _iVar
Position in the Scilab memory where you want to put the variable.
- _pstName
Name of the variable for "named" functions.
- _piRows
Return number of rows of the variable.
- _piCols
Return number of columns of the variable.
- _piBool
Return address of data array (size: _iRows * _iCols).
- SciErr
Error structure where is stored errors messages history and first error number.
Syntax
Input argument profile:
SciErr allocMatrixOfBoolean(void* _pvCtx, int _iVar, int _iRows, int _iCols, int** _piBool)
Arguments
- _pvCtx
Scilab environment pointer, pass in "pvApiCtx" provided by api_scilab.h.
- _iVar
Position in the Scilab memory where you want to put the variable.
- _iRows
Number of rows of the new variable.
- _iCols
Numbers of columns of the new variable.
- _piBool
Returns address of real data array (size: _iCols * _iRows).
- SciErr
Error structure where is stored errors messages history and first error number.
Description
This help describes how to write matrix of boolean.
Gateway Source
#include "api_scilab.h" int read_write_boolean(char *fname,void* pvApiCtx) { SciErr sciErr; int i; //first variable info : real matrix of double int iRows = 0; int iCols = 0; int *piAddr = NULL; int* piBool = NULL; //check input and output arguments CheckInputArgument(pvApiCtx, 1,1); CheckOutputArgument(pvApiCtx, 0,1); //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 = getMatrixOfBoolean(pvApiCtx, piAddr, &iRows, &iCols, &piBool); if(sciErr.iErr) { printError(&sciErr, 0); return 0; } //Do something with data for(i = 0 ; i < iRows * iCols ; i++) { piBool[i] = piBool[i] == 0 ? 1 : 0; } sciErr = createMatrixOfBoolean(pvApiCtx, nbInputArgument(pvApiCtx) + 1, iRows, iCols, piBool); if(sciErr.iErr) { printError(&sciErr, 0); return 0; } AssignOutputVariable(pvApiCtx, 1) = nbInputArgument(pvApiCtx) + 1; return 0; }
Scilab test script
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