Node:SizeOf, Next:SizeType, Previous:Single, Up:Reference

### SizeOf

#### Synopsis

    function SizeOf (var x): SizeType;

#### Description

Returns the size of a type or variable in bytes.

`SizeOf` can be applied to expressions and type names. If the argument is a polymorphic object, the size of its actual type is returned.

#### Conforming to

`SizeOf` is a UCSD Pascal extension.

#### Example

    program SizeOfDemo;
    var
      a: Integer;
      b: array [1 .. 8] of Char;
    begin
      WriteLn (SizeOf (a));        { Size of an `Integer'; often 4 bytes. }
      WriteLn (SizeOf (Integer));  { The same. }
      WriteLn (SizeOf (b))         { Size of eight `Char's; usually 8 bytes. }
    end.

#### See also

BitSizeOf, AlignOf, TypeOf.