Warum gibt es hier eine Acess Violation?

[Uwe Raabe]

Und da steht es ja auch schon genauso drin, daß es in dieser Situation crasht:

Zitat:

There is, however, a pitfall in the above example -
if the "inner" routine references any variable that was pushed onto
the stack before the "inner" procedure was called from testpass
(calltestpass parameters - if there were any, or local variables in
calltestpass - if there were any), your system most probably crashes:

Delphi-Quellcode:

{ This code compiles OK but generates runtime exception (could even be
  EMachineHangs :-) ) }
procedure testpass(p: pointer);
begin
  tProcedure(p);
end;
procedure calltestpass;
var msg: string;
 procedure inner;
 begin
   msg := 'hello';
   showmessage(msg);
 end;
begin
  testpass(@inner);
end;