John H Palmieri wrote: > On Dec 8, 3:12 pm, Minh Nguyen <[email protected]> wrote: >> Hi David, >> >> On Wed, Dec 9, 2009 at 10:08 AM, Dr. David Kirkby >> >> <[email protected]> wrote: >> >> <SNIP> >> >>> Yes, I'll do that. I wont promise when, as I am a bit busy now. Many of >>> these >>> things can be found in documents on the web, but it would no doubt help to >>> have >>> them in the developer guide, particularly those related to Sage. >> Could you please open a ticket for this issue?
Done. http://trac.sagemath.org/sage_trac/ticket/7632 > I'll see if I can write >> a short paragraph or two on the "and" and "or" operators. It's better >> to have something about these in the Developers' Guide than nothing at >> all. Later one, if you think necessary you could elaborate on more >> GNUism to avoid. > > It also might be helpful to add to the developer's guide some links > for sites where we can find posix standards like this (or for the > arguments to "cp", for example), mentioning portability as > motivation. I've put the links in the ticket above. There are two POSIX specs available on the web - the 2004 and the 2008 editions. It is safer to use only things in the 2004 edition, as some older operating systems will not have the latest changes. The URL for the 2004 edition (IEEE Std 1003.1, 2004 Edition) is: http://www.opengroup.org/onlinepubs/009695399/ You need a bit of care if you want to cite pages, as all URLs appear to be identical - the site uses frames I believe. As such, its better to right-click on the page you want to show people, and grab the URL. A couple which have been the subject of portability issues in Sage are: cp http://www.opengroup.org/onlinepubs/009695399/utilities/cp.html date http://www.opengroup.org/onlinepubs/009695399/utilities/date.html test (the subject of this email) http://www.opengroup.org/onlinepubs/009695399/utilities/test.html I'm not aware of any issues in Sage because '-a' has been used rather than '&&' in tests. But it seems pointless not to use the recommended way, and instead use a deprecated method. > I forget: do we have links to the on-line python > documentation in the developer's guide? If not, we should. Any other > useful links we should include? A link to the ISO standard for C and C++ would be nice, but I do not know of a location where you can get this information without spending close to $500. Does anyone know of a freely available standard for C and C++ ? Fortran would be useful too, though probably a lot less useful than C and C++. A link to the newsgroup comp.unix.shell http://groups.google.com/group/comp.unix.shell/topics would be useful, as that is one place to ask questions about shell scripts. (I prefer to use a news reader, rather than google groups, as I do not see much spam). The Sun Studio compiler documentation is listed at http://developers.sun.com/sunstudio/documentation/ss12u1/ The IBM's AIX compiler is at http://docs.hp.com/en/7730/newhelp0610/index.htm HP's HP-UX compiler is at http://www-01.ibm.com/support/docview.wss?uid=swg27012860&aid=1 (Both Minh Nguyen and I have made some efforts at building Sage on HP-UX and AIX. IBM's p-Series computers have CPUs running at 5 GHz - they would run Sage rather quickly!) With the exception of some very common compiler options like -c, -o and -g, compilers from Sun, GNU, HP and IBM all have different options to mean the same thing. (Sun and GNU share -m64, but other compilers use other flags to create 64-bit binaries). Anyway, enough from me. If Ming starts that page, I'll add to it over time. -- To post to this group, send an email to [email protected] To unsubscribe from this group, send an email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
