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Addr function

In unit System

Return address of a variable.

Declaration

pascal
function Addr(X: TAnytype): Pointer

Description

Addr returns a pointer to its argument, which can be any type, or a function or procedure name. The returned pointer isn't typed. The same result can be obtained by the @ operator, which can return a typed pointer (see the programmer's guide).

Errors

None

See also

Example: ex2

pascal
Program Example2;

{ Program to demonstrate the Addr function. }

Const Zero : integer = 0;

Var p : pointer;
    i : Integer;

begin
  p:=Addr(p);     { P points to itself }
  p:=Addr(I);     { P points to I }
  p:=Addr(Zero);  { P points to 'Zero' }
end.

An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.