// When using OUT it will not require this.
// This means that you will not be able to assume that the parameter has already been populated.
// You will not be able to read its value inside the method.
public static string ArrayAsOutPassing(int[,] arr)
{
ArrayTest.FillIntArray(arr);
ArrayHelpers.PrintArray(arr);
int[,] arrCpy = arr;
ArrayHelpers.UpdateArrayAsOutPassing(out arr);
bool result = IsChanged.IsNumericArraysEqual(arr, arrCpy);
return(String.Format("If array was passed into func with OUT parameter and had been changed there" +
"then it is NOT going to be changed everywhere. It is {0}", result));
}
// Agreements.
// I. To allocate current testing part we can change console output color to make it more noticeable
// Console.ForegroundColor = ConsoleColor.Green;
// End at the of it
// Console.ResetColor();
// II. To split different chapters we can use this single line:
// Console.WriteLine("*********************");
// III. To split different parts of chapters we can use this single line:
// --------------------------------------------------
// IV. Every chapter has specific number as roman numeral
// Every section has specific number as arabic numeral
// Every subsection has specific number as latin alphabet
static void Main(string[] args)
{
Console.WriteLine("*********************");
Console.WriteLine("I. Arrays");
int[,] arr = new int[5, 2];
// --------------------------------------------------
Console.WriteLine("I.1 Work with array dimention");
Console.WriteLine("I.1.A Length Function");
Console.WriteLine(ArrayTest.ArrayLengthFunc(arr));
Console.WriteLine("I.1.B GetLength Function");
Console.WriteLine(ArrayTest.ArrayGetLengthFunc(arr));
// --------------------------------------------------
Console.WriteLine("I.2 Loops");
Console.WriteLine("I.2.A ForEach");
Console.WriteLine(ArrayTest.ArrayLengthFunc(arr));
// --------------------------------------------------
// --------------------------------------------------
Console.WriteLine("*********************");
Console.WriteLine("II. References");
Console.WriteLine("II.1 Array passing");
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("II.1.A Without specific parameters");
Console.WriteLine(References.ArrayAsRegularPassing(arr));
Console.WriteLine("II.1.B With REF parameter");
Console.WriteLine(References.ArrayAsRefPassing(arr));
Console.WriteLine("II.1.C With OUT parameter");
Console.WriteLine(References.ArrayAsOutPassing(arr));
Console.ResetColor();
// --------------------------------------------------
// --------------------------------------------------
}
// II.1.C With OUT parameter
public static void UpdateArrayAsOutPassing(out int[,] arr)
{
// In this method we not be able to read ARR value. Thet's why we initialize it again
arr = new int[5, 2];
ArrayTest.FillIntArray(arr);
}
// II.1.B With REF parameter
public static void UpdateArrayAsRefPassing(ref int[,] arr)
{
ArrayTest.For2DInst(arr, ArrayHelpers.GetRandomInt);
}