Hello,
I have noted a different behaviour of same gateway code between scilab
5.5.2 and scilab 6.
The statement
AssignOutputVariable(pvApiCtx, 1) = 1;
is supposed to allow to return as first output variable the first input
variable of the scilab function.
Under scilab 5.5.2 the following code allows to modifiy the non-zeros
terms of a sparse matrix a with elements of a vector v (with the syntax
spset(a,v)), and outputs the modified matrix:
int sparse_set(char *fname)
{
SciErr sciErr;
int i,j,k;
int* piAddr = NULL;
int* vAddr = NULL;
int iRows = 0;
int iCols = 0;
int viRows = 0;
int viCols = 0;
int iNbItem = 0;
int* piNbItemRow = NULL;
int* piColPos = NULL;
double* pdblReal = NULL;
double* vpdblReal = NULL;
CheckInputArgument(pvApiCtx, 2, 2);
CheckOutputArgument(pvApiCtx, 0, 1);
sciErr = getVarAddressFromPosition(pvApiCtx, 1, &piAddr);
sciErr = getSparseMatrix(pvApiCtx, piAddr, &iRows, &iCols,
&iNbItem, &piNbItemRow, &piColPos, &pdblReal);
sciErr = getVarAddressFromPosition(pvApiCtx, 2, &vAddr);
sciErr = getMatrixOfDouble(pvApiCtx, vAddr, &viRows, &viCols,
&vpdblReal);
memcpy(pdblReal, vpdblReal,min(iNbItem,viRows*viCols)*sizeof(double));
AssignOutputVariable(pvApiCtx, 1) = 1;
return 0;
}
Under Scilab 6 (function prototype has to be updated ;-)), the same code
outputs the original, unmodified matrix a.
My question is : is the (expected) behavior of scilab 5.5.2 erroneous or
is there a bug/regression in scilab 6 ?
Thanks for help
S.
--
Département de Génie Informatique
EA 4297 Transformations Intégrées de la Matière Renouvelable
Université de Technologie de Compiègne - CS 60319
60203 Compiègne cedex
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