2.2.3.19.25 vectorbase::GetSubVector

Contents

Description

Get a subset of the vector.

Syntax

int GetSubVector( vectorbase & vbTarget, int c1 = 0, int c2 = -1 )
int GetSubVector(vectorbase& vbTarget, const vector<uint>& vnIndices)

Parameters

vbTarget
[output] The numeric type vector (for example, vector<double>, vector<int> and so on) containing returned subset.
c1
[input] Begining element index, default is 0 (0-based offset).
c2
[input] Ending element index (inclusive), default is -1 (upto and including last element).
vnIndices
[input] including the indices of the wanted cells of sub vector from source vector.

Return

Returns 0 on success and -1 on failure.

Examples

EX1 

void vectorbase_GetSubVector_ex1()
{
    vector vec1 = {0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9};
    vector vec2;
    vec1.GetSubVector(vec2, 2, 5);
    for (int ii = 0; ii < vec2.GetSize(); ii++)
    	printf("%g ",vec2[ii]);
    // Result:
    //        vec2 = {0.3, 0.4, 0.5, 0.6}
}

EX2 

void vectorbase_GetSubVector_ex2()
{
    vector vec1 = {0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9};
    vector vec2;
    vector<uint> vn = {1, 3, 5, 7};
    vec1.GetSubVector(vec2, vn);
    for (int ii = 0; ii < vec2.GetSize(); ii++)
    	printf("%g ",vec2[ii]);
    // Result:
    //        vec2 = {0.2, 0.4, 0.6, 0.8}
}

Remark

Get a subset of this vector using specified 0-based element indices.

See Also

Vectorbase::SetSubVector

Header to Include

origin.h