freepascal.compiler/tests/test/tblock1a.pp

{ %target=darwin,iphonesim}

{$mode delphi}
{$modeswitch blocks}

type
  tblock = reference to procedure; cdecl;

procedure test(b: tblock);
  begin
    b;
  end;

procedure proc;
  begin
    writeln('called as block');
  end;

const
  bconst: tblock = proc;

var
  b: tblock;
begin
  b:=proc;
  b;
  test(proc);
  test(b);
  bconst;
  test(bconst);
end.