[R] make check fails for 1.3.0 on SGI at ISOdate(1901,1,1)

Tue Jun 26 22:17:23 CEST 2001

Sorry, SGI's man page doesn't mention any limitations.

R. Woodrow Setzer, Jr.                                            Phone:
(919) 541-0128
Experimental Toxicology Division                       Fax:  (919) 541-5394
Pharmacokinetics Branch
NHEERL MD-74; US EPA; RTP, NC 27711

                    Prof Brian                                                                                
                    Ripley               To:     Woodrow Setzer/RTP/USEPA/US at EPA                              
                    <ripley at stats        cc:     r-help at stat.math.ethz.ch                                     
                    .ox.ac.uk>           Subject:     Re: [R] make check fails for 1.3.0 on SGI at            
                                         ISOdate(1901,1,1)                                                    
                    06/26/01                                                                                  
                    04:09 PM                                                                                  

On Tue, 26 Jun 2001 Setzer.Woodrow at epamail.epa.gov wrote:

>
> In fact, ISOdate fails with any date earlier than 1970 on this system:
>
> > ISOdate(1969,12,31)
> [1] "NA"
> > ISOdate(1970,1,1)
> [1] "1970-01-01 07:00:00 EST"
>
> The problem is in strptime:
>
> > strptime(paste(1970,1,1,12,0,0),"%Y %m %d %H %M %S")
> [1] "1970-01-01 12:00:00"
> > strptime(paste(1969,12,31,12,0,0),"%Y %m %d %H %M %S")
> [1] "NA"
>
> The man page for strptime doesn't mention any limitations.

R's or SGI's?  The limitation seems to be on SGI only, and I've sent
privately some suggestions.   Windows has (had before I fixed the code)
the same problem, but then Microsoft didn't exist in 1970 (although Bill
Gates did, so he must have problems with his date of birth).

--
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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