Linkage programs, Y2K, software publishers

Eric Rouillard eric.rouillard at crulrg.ulaval.ca
Tue Jan 26 15:20:34 EST 1999


Gerard Tromp wrote:
> 
> Eric Rouillard wrote:
> >
> > I was just wondering if anyone has tested the LINKAGE programs to see if
> > they pass the year 2000 test ?
> >
> > More specifically, I was wondering about helper programs like LCP, since
> > there are dates in the shell script. Could the code stop because of an
> > "irrecoverable error" ?
> >
> > It would be great if this information could also be made available on
> > websites like linkage.rockefeller.edu, darwin.mhmc.cwru.edu,
> > www.infobiogen.fr and all other centres that "publish and distribute"
> > software for linkage.
> >
> > Thank you in advance,
> > Eric Rouillard.
> >
> > PS: I could do some of the corrections myself, but I'm not a fan of
> > doing something that has been done already.
> 
> Perusal of the LINKAGE utility code reveals that those dates are derived
> from the time_t structure (access and modification times of the files).
> These are OS dependent and on most Unices are in seconds since 00:00:00
> UTC, Jan. 1, 1970. That means they will not cause the software to fail
> sooner than the OS will, i.e. sometime in 2038 (I forget when exactly --
> some time around April 15). If the OS goes to 64 bit time then we delay
> that problem for some number of thousands of years. The fact that two
> digit years are used in the output of the linkage utilities is solved
> quite readily but is cosmetic. All time calculations appear to be using
> system time structures (and conversions to and from seconds since
> 00:00:00 UTC, Jan. 1, 1970).
> 
> Gerard
> --
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> Gerard Tromp, Ph.D.
> CMMG, Wayne State University    vox:    313-577-8773
> 3116, Scott Hall                fax:    313-577-5218
> 540 E Canfield Ave              e-mail: tromp at sanger.med.wayne.edu
> Detroit, MI 48201                       gtromp at cmb.biosci.wayne.edu

Thank you very much Dr Tromp.

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