TAbstractMtxVecInt.Reverse Method

Overload List

#	Signature	Description
1	TMtxVecInt Reverse(TMtxVecInt Vec, Int32 VecIndex, Int32 Index, Int32 Len)	Reverse vector elements.
2	TMtxVecInt Reverse(Int32 Index, Int32 Len)	Reverses the calling object elements [Index]..[Index+Len-1].

Overload 1: TMtxVecInt Reverse(TMtxVecInt Vec, Int32 VecIndex, Int32 Index, Int32 Len)

Reverse vector elements.

#	Name	Type	Description
1	Vec	TMtxVecInt	source TVecInt or TMtxInt
2	VecIndex	Int32
3	Index	Int32	start index
4	Len	Int32	element count

Result: stored in self (calling object), returns self for chaining

Remarks:

The method reverses Vec vector elements from [VecIndex].. [VecIndex+Len-1] and stores them in the calling vector from [Index]...[Index+Len-1] by using the following equation:

\text{V}[k]=\text{Vec}[N-k],\quad 0\leq k \leq N, \quad \text{where } N=\text{Vec.Length}-1

This overload reverses calling vector elements in-place.

Examples

using Dew.Math;
using Dew.Math.Units;

namespace Dew.Examples
{
    void Example()
    {
        TMtxInt a;
        MtxVecInt.CreateIt(out a);
        try
        {
            a.SetIt(2,2, new int[] {1,2,3,4});
            a.Reverse();   // a = [2,1,3,4]
        }
        finally
        {
            MtxVecInt.FreeIt(ref a);
        }
    }
}

Overload 2: TMtxVecInt Reverse(Int32 Index, Int32 Len)

Reverses the calling object elements [Index]..[Index+Len-1].

#	Name	Type	Description
1	Index	Int32	start index
2	Len	Int32	element count

Result: stored in self (calling object), returns self for chaining

Remarks:

An exception is raised if array borders are overrun.