System.LongWord

Delphi

type LongWord = { built-in type };

C++

typedef unsigned             LongWord;         // 0..4294967295

Type	Visibility	Source	Unit	Parent
type typedef	public	System.pas sysmac.h	System	System

Description

Platform-dependent unsigned integer type.

LongWord represents a subset of the natural numbers. LongWord size and range depend on the target platform:

On 32-bit platforms and 64-bit Windows platforms, LongWord is a 4-byte unsigned integer with the range [0 .. 4294967295] (0 through 2³²-1).

Note: 32-bit platforms include 32-bit Windows, 32-bit macOS, 32-bit iOS, and Android.

On 64-bit POSIX platforms (iOS and Linux), LongWord is an 8-byte unsigned integer with the range [0 .. 18446744073709551615] (0 through 2⁶⁴-1).

Note: If you want to use a 4-byte unsigned integer type, use FixedUInt or Cardinal.