Delphi Basics : LongInt command

DelphiBasics

LongInt
Type

An Integer whose size is guaranteed to be 32 bits

System unit

type LongInt = -2147483648..2147483647;

Description

The LongInt type is a 32 bit signed Integer. This size is fixed, and will not change in future releases of Delphi. It is currently the same size as the Integer type.

To hold very large signed integers, use the Int64 type.

Related commands

Byte		An integer type supporting values 0 to 255
Cardinal		The basic unsigned integer type
Int64		A 64 bit sized integer - the largest in Delphi
Integer		The basic Integer type
LongWord		A 32 bit unsigned integer
ShortInt		An integer type supporting values -128 to 127
SmallInt		An Integer type supporting values from -32768 to 32767
Word		An integer type supporting values 0 to 65535

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Example code : Showing the capacity of LongInt

var
  min, max : LongInt;
begin
  // Set the minimum and maximum values of this data type
  min := Low(LongInt);
  max := High(LongInt);
  ShowMessage('Min longint value = '+IntToStr(min));
  ShowMessage('Max longint value = '+IntToStr(max));
end;

Show full unit code

Min longint value = -2147483648
Max longint value = 2147483647