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Reference for unit 'System' (#rtl)

ptr

Combine segment and offset to pointer

Declaration

Source position: systemh.inc line 1061

function ptr(

sel: LongInt;

off: LongInt

):FarPointer;

Description

Ptr returns a pointer, pointing to the address specified by segment Sel and offset Off.

Remark:

In the 32/64-bit flat-memory model supported by Free Pascal, this function is obsolete.
The returned address is simply the offset.

Errors

None.

Example

Program Example59;

{ Program to demonstrate the Ptr (compatibility) function. }

type pString = ^String;

Var P : pString;
    S : String;

begin
  S:='Hello, World !';
  P:=pString(Ptr(Seg(S),Longint(Ofs(S))));
  {P now points to S !}
  Writeln (P^);
end.

ptr

Declaration

Description

Errors

See also

Example