Delphi Basics : MaxLongInt command

DelphiBasics

MaxLongInt
Constant

The maximum value an LongInt can have

System unit

const MaxLongInt = High(LongInt);

Description

The MaxLongInt constant gives the largest allowed value for a LongInt.

The value is (2^31) -1 = 2,147,483,647

It is often used when the size of something, such as an array, is unknown.

Related commands

LongInt		An Integer whose size is guaranteed to be 32 bits
MaxInt		The maximum value an Integer can have

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Example code : Copying the trailing characters of a string

var
  Source, Target : string;

begin
  Source := 'Assume that we do not know how long this string is';

  // Copy all characters from the 8th onwards
  Target := Copy(Source, 8, MaxLongInt);

  ShowMessage('Source : '+Source);
  ShowMessage('Target : '+Target);
end;

Show full unit code

Source : Assume that we do not know how long this string is
Target : that we do not know how long this string is