2.1.17.8.8 ocmath_f_copy

1 Description
2 Syntax
3 Parameters
4 Return
5 Examples
6 Remark
7 See Also
8 Header to Include
9 Reference

Description

Copy a vector of type float with given array of indices.

Syntax

void ocmath_f_copy( uint nPts, const uint * pIndices, float * pDestX, const float * pSrcX, int nSrcSize )

Parameters

nPts: [input] size of pIndices arrays, must be smaller then the size of pSrcX.
pIndices: [input] array of indices to copy from pSrcX to pDestX, the largest element of this array must be smaller then the size of pDestX.
pDestX: [output] destination vector, must be SetSize to nPts.
pSrcX: [input] source vector, must be SetSize to at least the largest element in pIndices.
nSrcSize: [input] size of pSrcX

Return

There is nothing to return, It is assumed that caller will prepare all the pointers and arrays such that they are all in the valid range, as this function does not check for errors.

Examples

EX1

void ocmath_f_copy_ex1()
{
    vector vd = {1,1.1, 2 ,2.1, 3,3.1,4,4.1,5,5.1};
    vector<uint> vnIndices = {0,2,4,6,8};
    vector vDestX;
    bool bRet = vDestX.SetSize(vnIndices.GetSize());
    
    if(!bRet)
        return ;
    ocmath_d_copy(vnIndices.GetSize(), vnIndices,vDestX, vd, vd.GetSize() );
    //vDestX should have data of : 1, 2, 3, 4, 5
}