Pointer writing (Scilab gateway)

How to add pointer in a list.

Calling Sequence

Input argument profile:

SciErr createPointerInList(void* _pvCtx, int _iVar, int* _piParent, int _iItemPos, void* _pvPtr)

Named variable profile:

SciErr createPointerInNamedList(void* _pvCtx, const char* _pstName, int* _piParent, int _iItemPos, void* _pvPtr)

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. : :_piParent Address of the parent of the new item. : :_iItemPos Position of the new item in the list. : :_pvPtr Address of the pointer. : :SciErr Error structure where is stored errors messages history and

first error number.

:

Description

This help describes how to add pointer in a list.

Gateway Source

#include "api_scilab.h"
int list_createlist(char *fname,unsigned long fname_len)
{
    SciErr sciErr;
    int *piAddr             = NULL;
    int* piChild            = NULL;
    double pdblData1[]      = {1,3,5,2,4,6};
    double pdblData2[]      = {6,4,2,5,3,1};
    char *pstData[]         = {"may","be","the","with","puffin","you"};
    short psData[]          = {1,4,2,5,3,6};
    double pdblPoly1[]      = {1};
    double pdblPoly2[]      = {-2,-1};
    double pdblPoly3[]      = {1,2,3};
    double pdblPoly4[]      = {-4,-3,-2,-1};
    double pdblPoly5[]      = {1,2,3,4,5};
    double pdblPoly6[]      = {-6,-5,-4,-3,-2,-1};
    double *pdblPoly[]      = {pdblPoly1, pdblPoly3, pdblPoly5, pdblPoly2, pdblPoly4, pdblPoly6};
    int piCoef[]            = {1,3,5,2,4,6};
    int piNbItemRow[]       = {1,2,1};
    int piColPos[]          = {8,4,7,2};
    double pdblSReal[]      = {1,2,3,4};
    double pdblSImg[]       = {4,3,2,1};
    int piBool[]            = {1,0,1,0,1,0,1,0,1};
    double* pdblDataPtr     = NULL;

    sciErr = createList(pvApiCtx, nbInputArgument + 1, 8, &piAddr);
    if(sciErr.iErr)
    {
            printError(&sciErr, 0);
            return 0;
    }

    sciErr = createComplexMatrixOfDoubleInList(pvApiCtx, nbInputArgument + 1, piAddr, 1, 3, 2, pdblData1, pdblData2);
    if(sciErr.iErr)
    {
            printError(&sciErr, 0);
            return 0;
    }

    sciErr = createMatrixOfStringInList(pvApiCtx, nbInputArgument + 1, piAddr, 2, 2, 3, pstData);
    if(sciErr.iErr)
    {
            printError(&sciErr, 0);
            return 0;
    }

    sciErr = createMatrixOfInteger16InList(pvApiCtx, nbInputArgument + 1, piAddr, 3, 2, 3, psData);
    if(sciErr.iErr)
    {
            printError(&sciErr, 0);
            return 0;
    }

    sciErr = createMatrixOfPolyInList(pvApiCtx, nbInputArgument + 1, piAddr, 4, "x", 3, 2, piCoef, pdblPoly);
    if(sciErr.iErr)
    {
            printError(&sciErr, 0);
            return 0;
    }
    sciErr = createComplexSparseMatrixInList(pvApiCtx, nbInputArgument + 1, piAddr, 5, 3, 10, 4, piNbItemRow, piColPos, pdblSReal, pdblSImg);
    if(sciErr.iErr)
    {
            printError(&sciErr, 0);
            return 0;
    }

    sciErr = createMatrixOfBooleanInList(pvApiCtx, nbInputArgument + 1, piAddr, 6, 3, 3, piBool);
    if(sciErr.iErr)
    {
            printError(&sciErr, 0);
            return 0;
    }
    sciErr = createBooleanSparseMatrixInList(pvApiCtx, nbInputArgument + 1, piAddr, 7, 3, 10, 4, piNbItemRow, piColPos);
    if(sciErr.iErr)
    {
            printError(&sciErr, 0);
            return 0;
    }

    //add list in list
    sciErr = createListInList(pvApiCtx, nbInputArgument + 1, piAddr, 8, 3, &piChild);
    if(sciErr.iErr)
    {
            printError(&sciErr, 0);
            return 0;
    }

    sciErr = createMatrixOfDoubleInList(pvApiCtx, nbInputArgument + 1, piChild, 1, 3, 2, pdblData1);
    if(sciErr.iErr)
    {
            printError(&sciErr, 0);
            return 0;
    }

    sciErr = createSparseMatrixInList(pvApiCtx, nbInputArgument + 1, piChild, 2, 3, 10, 4, piNbItemRow, piColPos, pdblSReal);
    if(sciErr.iErr)
    {
            printError(&sciErr, 0);
            return 0;
    }

    pdblDataPtr     = (double*)malloc(sizeof(double) * 4);
    pdblDataPtr[0]  = 1;
    pdblDataPtr[1]  = 2;
    pdblDataPtr[2]  = 3;
    pdblDataPtr[3]  = 4;

    sciErr = createPointerInList(pvApiCtx, nbInputArgument + 1, piChild, 3, pdblDataPtr);
    if(sciErr.iErr)
    {
            printError(&sciErr, 0);
            return 0;
    }

    AssignOutputVariable(1) = nbInputArgument + 1;
    return 0;
}

Scilab test script

size_ref    = 8;
type_ref    = ["constant","string","int16","polynomial", "sparse", "boolean", "boolean sparse", "list"];
dim_ref     = `list`_([3,2],[2,3],[2,3],[3,2],[3,10],[3,3],[3,10],3);

l = list_createlist();
if `size`_(l) <> size_ref then `error`_("failed"), end
for i = 1 : size_ref
    if `typeof`_(l(i)) <> type_ref(i) then `error`_("failed"), end
    if `size`_(l(i)) <> dim_ref(i) then `error`_("failed"), end
end