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LhsVar (deprecated)
a C gateway function which specifies which parameters created inside the C gateway will be returned as an output argument into Scilab. This function is obsolete.
Calling Sequence
LhsVar(RankPos) = RankVar;
Arguments
- RankPos
as integer providing the rank of the output argument
- RankVar
the rank of the parameter created inside the C gateway to be returned as an Scilab output argument
Description
A C gateway function which specifies which variables created inside the C interface will be returned as an output argument into Scilab.
WARNING: This API is deprecated from Scilab 5.2.0 and is going to be removed with Scilab 6.0. Please use API Scilab (the new Scilab API).
Examples
This example takes a matrix of doubles as input and returns:
the number of lines (first output argument)
the number of rows (second output argument)
We create an intermediate Scilab parameter which will handle an integer but will neither be used nor returned as an output argument.
TODO: insert an example in the Scilab language
#include "stack-c.h" #include "api_scilab.h" int sci_mysizedouble(char * fname, unsigned long fname_len) { int m_in_row; int n_in_col; int *piAddr = NULL; double *pdblData = NULL; SciErr sciErr; sciErr = getVarAddressFromPosition(pvApiCtx, 1, &piAddr); if(sciErr.iErr) { printError(&sciErr, 0); return 0; } /* get dimensions */ sciErr = getMatrixOfDouble(pvApiCtx, piAddr, &m_in_row, &n_in_col, &pdblData); if(sciErr.iErr) { printError(&sciErr, 0); return 0; } sciErr = createMatrixOfInteger32(pvApiCtx, 2, 1, 1, &m_in_row); // the out_lines_pos parameter handles the number of lines of the matrix sent as argument sciErr = createMatrixOfInteger32(pvApiCtx, 3, 1, 1, &m_in_row); // store a mere value, but will neither be used nor returned to Scilab sciErr = createMatrixOfInteger32(pvApiCtx, 4, 1, 1, &n_in_col); // store a mere value, but will neither be used nor returned to Scilab LhsVar(1) = 2; // We set the parameter 2 as an output argument LhsVar(2) = 4; // We set the parameter 4 as an output argument PutLhsVar(); return 0; }
See Also
- AssignOutputVariable — Cゲートウェイ内で作成され, Scilab に出力変数として返されるパラメータを指定するCゲートウェイ関数.
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