Concatenate various Arrays - CSharp System

CSharp examples for System:Array Element Add

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Description

Concatenate various Arrays

Demo Code


using System.Linq;
using System.Collections.Generic;
using System;//  www. j a v a 2s.  c om

public class Main{


        public static T[]
        Concat_Arrays<T>(params T[][] arrays) {

            T[] ret = new T[arrays.Sum(_arr => _arr.Length)];

            int pos = 0;
            foreach (var arr in arrays) {

                Array.Copy(arr, 0, ret, pos, arr.Length);
                pos += arr.Length;
            }

            return ret;
        }
        public static void
        Copy<T>(this T[] array,
                    long sourceIndex,
                    T[] destinationArray,
                    long destinationIndex,
                    long length) {
            Array.Copy(array, sourceIndex, destinationArray, destinationIndex, length);

        }
        public static void
        Copy<T>(this T[] array,
            int sourceIndex,
            T[] destinationArray,
            int destinationIndex,
            int length) {
            Array.Copy(array, sourceIndex, destinationArray, destinationIndex, length);
        }
        public static void
        Copy<T>(this T[] array,
            T[] destinationArray,
            long length) {
            Array.Copy(array, destinationArray, length);

        }
        public static void
        Copy<T>(this T[] array,
            T[] destinationArray,
            int length) {
            Array.Copy(array, destinationArray, length);

        }
        public static void
        Copy<T>(this T[] arr1, bool from_right, T[] arr2, int start1, int start2) {

            if (from_right) {
                for (int ii = arr1.Length - 1, jj = arr2.Length - 1;
                     ii >= start1; --ii, --jj) {
                    arr2[jj] = arr1[ii];
                }
            }
            else {
                Array.Copy(arr1, start1, arr2, start2, arr1.Length - start1);
            }

        }
        public static T[]
        Copy<T>(this T[] array) {

            if (array == null)
                return null;
            var ret = new T[array.Length];
            array.CopyTo(ret, 0);
            return ret;
        }
}

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