#7632: add to Developer's Guide information how to write portable code
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Reporter: drkirkby | Owner: drkirkby
Type: defect | Status: new
Priority: major | Milestone: sage-4.3
Component: porting | Keywords:
Work_issues: | Author:
Upstream: N/A | Reviewer:
Merged: |
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Old description:
New description:
As discussed on [http://groups.google.com/group/sage-
devel/browse_thread/thread/bc1ea5faa96eea13 sage-devel], we need to
document how to write portable POSIX conforming code, using best-
practices. One such example, which started the discussion, was using
{{{
test "$1" && test "$2"
}}}
and NOT
{{{
test "$1" -a "$2"
}}}
It would be wise to cite the URL for the 2004 POSIX standard (IEEE Std
1003.1, 2004 Edition), in the developers guide. The URL is:
http://www.opengroup.org/onlinepubs/009695399/
(There is a later 2008 POSIX standard, but some of changes in this may not
be implemented in everyone's operating system, whereas most operating
systems will implement the 2004 standard).
Unfortunately, due to what I believe is probably the use of frames, all
URLs on this site appear to be the same. As such, if directing people to a
URL, right-click on the item required, and copy the URL. E.g for the
'test' tool, it is:
http://www.opengroup.org/onlinepubs/009695399/utilities/test.html
For 'cp' it is
http://www.opengroup.org/onlinepubs/009695399/utilities/cp.html
--
Comment(by mvngu):
I was inattentive and put the modified ticket description in the ticket
body. I have restored the ticket description with the modification. Sorry
for this mistake.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7632#comment:2>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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