Delphi Basics
SmallInt
Type
An Integer type supporting values from -32768 to 32767 System unit
  type SmallInt = -32768..32767;
Description
The SmallInt type is a 16 bit sized signed Integer.
 
To hold larger integers, use the Integer , LongInt (both 32 bits) or the Int64 (64 bits) types.
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
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
Word An integer type supporting values 0 to 65535
 
Example code : Showing the capacity of SmallInt
// Full Unit code.
// -----------------------------------------------------------
// You must store this code in a unit called Unit1 with a form
// called Form1 that has an OnCreate event called FormCreate.
 
unit Unit1;
 
interface
 
uses
  // The System unit does not need to be defined
  SysUtils,
  Forms, Dialogs;
 
type
  TForm1 = class(TForm)
    procedure FormCreate(Sender: TObject);
  end;
 
var
  
Form1: TForm1;
 
implementation
{$R *.dfm} // Include form definitions
 
procedure TForm1.FormCreate(Sender: TObject);

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

 
end.
Hide full unit code
   Min smallint value = -32767
   Max smallint value = 32768
 
 
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