UNDEFINED means that whatever you get IS STANDARD CONFORMING. The standard does not require that an error message must be produced or that your program must abort. Loren P. Meissner [log in to unmask] > -----Original Message----- > From: [log in to unmask] > [mailto:[log in to unmask]]On Behalf Of Dr W.W. > Schulz > Sent: Friday, September 25, 1998 4:27 AM > To: fortran90 mailing list > Subject: Pointer behaviour > . . . > In the last three cases where z should be undefined I nevertheless > get a TRUE for ASSOCIATED(z). . . . > The results are certainly not standard conforming. > %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%