- Справка Scilab
- API Scilab
- legacy
- Low level functions
- AssignOutputVariable
- CallOverloadFunction
- CheckInputArgument
- CheckOutputArgument
- ReturnArguments
- UpdateStack
- Boolean reading (Scilab gateway)
- Boolean writing (Scilab gateway)
- Boolean sparse reading (Scilab gateway)
- Boolean sparse writing (Scilab gateway)
- Check variable dimensions (Scilab gateway)
- Variable Reference (Scilab gateway)
- Variable dimension (Scilab gateway)
- Variable Type (Scilab gateway)
- Variable Complexity (Scilab gateway)
- Matrix Type (Scilab gateway)
- deleteNamedVariable
- Double reading (Scilab gateway)
- Double writing (Scilab gateway)
- getNbInputArgument (Scilab gateway)
- getNbOutputArgument (Scilab gateway)
- Handle reading (Scilab gateway)
- Handle writing (Scilab gateway)
- Integer Precision (Scilab gateway)
- Integer reading (Scilab gateway)
- Integer writing (Scilab gateway)
- nbInputArgument (Scilab gateway)
- Pointer reading (Scilab gateway)
- Pointer writing (Scilab gateway)
- Polynomial Symbolic Variable (Scilab gateway)
- Polynomial reading (Scilab gateway)
- Polynomial writing (Scilab gateway)
- Sparse matrix reading (Scilab gateway)
- Sparse writing (Scilab gateway)
- String reading (Scilab gateway)
- String writing (Scilab gateway)
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However, this page did not exist in the previous stable version.
AssignOutputVariable
a C gateway function which specifies which parameters created inside the C gateway will be returned as an output argument into Scilab.
Syntax
AssignOutputVariable(pvApiCtx, 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.
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.
#include "api_scilab.h" int sci_mysizedouble(char * fname, void* pvApiCtx) { SciErr sciErr; int m_in_row; int n_in_col; int* piAddr = NULL; double* pdblData = NULL; 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, nbInputArgument(pvApiCtx) + 1, 1, 1, &m_in_row); // the m_in_row parameter handles the number of lines of the matrix sent as argument sciErr = createMatrixOfInteger32(pvApiCtx, nbInputArgument(pvApiCtx) + 2, 1, 1, &m_in_row); // store a same value, but will neither be used nor returned to Scilab sciErr = createMatrixOfInteger32(pvApiCtx, nbInputArgument(pvApiCtx) + 3, 1, 1, &n_in_col); // the n_in_col parameter handles the number of columns of the matrix sent as argument AssignOutputVariable(pvApiCtx, 1) = nbInputArgument(pvApiCtx) + 1; // We set the parameter "nbInputArgument(pvApiCtx) + 1" as an output argument AssignOutputVariable(pvApiCtx, 2) = nbInputArgument(pvApiCtx) + 3; // We set the parameter "nbInputArgument(pvApiCtx) + 3" as an output argument ReturnArguments(pvApiCtx); return 0; }
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