Open array parameters

What is translated > Types > Arrays > Array parameters > Open array parameters

The concept of open arrays allow arrays of different sizes to be passed to the same procedure or function.

function Sum(Arr: Array of Integer): Integer;

var

 i: Integer;

begin

  Result := 0;

  for i := Low(Arr) to High(Arr) do 

    Result := Result + Arr[i];

end; 

In the C# translation the array member functions GetUpperBound and GetLowerBound are used instead of the Delphi functions High and Low.

public static int Sum(int[] Arr)

{

  int result = 0;

  int i = 0;

  int stop = 0;

  result = 0;

  for(stop = Arr.GetUpperBound(0), i = Arr.GetLowerBound(0); i <= stop; i++)

  {

    result = result + Arr[i];

  }

  return result;

}

A temporary set of values can be passed as open array parameter too:

procedure Log(strings : array of string)

begin end;

procedure foo;

begin

Log(['one', 'two', 'three']);

end;

->

public static void Log(string[] strings)

{

}

public static void foo()

{

  Log(new string[]{"one", "two", "three"});

}

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