Convert all elements of a rectangular array to a vector, using a function. - CSharp System

CSharp examples for System:Array Convert

  1. HOME
  2. CSharp
  3. System
  4. Array Convert

Description

Convert all elements of a rectangular array to a vector, using a function.

Demo Code


using System;//from  ww w.j  av  a  2s .  c  o  m

public class Main{
        /// <summary>
        /// Convert all elements of a rectangular array to a vector, using a function to cast/transform each element.
        /// The dimension reduction is column-first, appending each line of the input array into the result vector.
        /// </summary>
        /// <typeparam name="T">The type of the input array elements</typeparam>
        /// <typeparam name="U">The type of the output array elements</typeparam>
        /// <param name="array">Input array</param>
        /// <param name="fun">A conversion function taking in an object of type T and returning one of type U</param>
        /// <returns></returns>
        public static U[] ArrayConvertAllOneDim<T, U>(T[,] array, Func<T, U> fun)
        {
            int rows = array.GetLength(0);
            int cols = array.GetLength(1);
            U[] res = new U[rows * cols];
            for (int i = 0; i < rows; i++)
                for (int j = 0; j < cols; j++)
                    res[rows * j + i] = fun(array[i, j]);
            return res;
        }
}

Related Tutorials