[Coin-ipopt] Online bug report system

[Andreas Waechter]

Hi

If you are using Ipopt and run into situations that you think may be a bug 
in Ipopt, it will be helpful to us (and maybe to to you if we fix it :) to 
learn about it.

This mailing list is probably not a good place to report such bugs, so we 
want to start using the bug ticket report system that is integrated in the 
Trac system, which is what the Ipopt web pages are based on.

If you want to report a bug, please go to the Ipopt projects page and 
click on the tab on the top of the page that reads "New Ticket" (the 
direct link is http://projects.coin-or.org/Ipopt/newticket ).

There you can describe the problem you encounter, and if you provide your 
email address in the first box, you will be notified if there are changes 
to the ticket.  The Ipopt developers are automatically notified, so there 
is no need to send an additional message to the mailing list or the 
developers.  You can always check the status of tickets using the "View 
Tickets" tab (direct URL: http://projects.coin-or.org/Ipopt/report ).

When registering a bug or problem, please include as much information as 
possible, such as operating system, compiler, compiler options etc.  You 
also have the option to add attachments, for example programming code or 
an AMPL model file, so that we can reproduce the problem.  If possible, 
please make such an example as simple as you can.  Also, our preferred 
development environment is Linux, so unless the problem is operating 
system specific, it would make life much easier for us if the code is 
written to be compiled on non-specific platforms (unless it is Linux ;).

Of course, please do not include any confidential information in your 
report.  Also, in some cases, due to the difference of floating point 
operations (caused by different rounding of the finite precision numbers), 
we might not be able to reproduce the error unless we can regenerate 
exactly the same executable as you.

Anyway, I hope the new system will be useful, but since we write almost 
bug-free code, it might be a quite boring site to watch ;))

Cheers,

Andreas