Delphi Basics : Integer command

DelphiBasics

Integer
Type

The basic Integer type

System unit

type Integer = -2147483648..2147483647; // At the time of writing

Description

The Integer type is an Integer whose size is not guaranteed. It is the basic integer type in Delphi, and currently has the same capacity as the LongInt type - 1 bit sign, and 31 bits value.

To hold very large 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
LongInt		An Integer whose size is guaranteed to be 32 bits
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 Integer

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

Show full unit code

Min integer value = -2147483648
Max integer value = 2147483647