Jerry, The problem is that Time_Of is in local time. The UK was on daylight saving time on 1st Jan 1970, and so my reference is 1 hour out. Most time zones with no DST in operation will give the correct value. I'd overlook this possibility when I first wrote the C version. That's why we had to change it to the more complicated version using the TZ environment variable.
Andrew On Thu, Aug 28, 2008 at 12:49:45AM -0700, Jerry wrote: > Andrew, > > On my machine, in Ada example 29, the line > > xmin := Long_Float(Time_Of(2005, 12, 1, 0.0) - Time_Of(1970, 1, 1, > 0.0)); > > calculates a value of xmin of 1.13339520000000E+09 which is the same > number that you hard-coded the value to recently. Does your machine > not calculate this same value of xmin when using the Time_Of function? > > You can print out the xmin value by changing the with-clause to look > like this: > > with > Ada.Text_IO, > Ada.Numerics, > etc. > > and by adding this line right after the xmin calculation: > > Ada.Text_IO.Put_Line(Long_Float'image(xmin)); > > > Jerry > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge > Build the coolest Linux based applications with Moblin SDK & win great prizes > Grand prize is a trip for two to an Open Source event anywhere in the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ > Plplot-devel mailing list > Plplot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/plplot-devel > ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel