Need to learn C, best books?
djk at tobit.co.uk
Wed Oct 24 15:00:35 BST 2007
Andy Armstrong wrote:
> Once you have your head properly around that kind of thing interfacing
> with Perl is pretty simple. Investigate Inline::C - it's easier than
> plain old XS.
You are entitled to your opinion, of course, but mine is the exact
opposite. Inline::C is a pain, it is unmaintained and extremely limited
in what you can actually do, plus it relies on there being a working
development environment on each computer where the module is used. Also
h2xs is designed to help one generate XS based CPAN style modules and
this doesn't fit at all well with Inline::C's assumptions.
XS is merely not very well documented for the non-XS aware C programmer.
And no, I would not recommend any of the books on XS - at all. Sorry.
I found that the only way, that worked for me, into XS was to look at
some simple XS, and print out all the perldocs on XS and perl internals,
then compare and contrast. You should also learn to recognise 'old' XS
(which is not really XS at all but the "perl internal speak" that XS is
designed to hide and then look for the modern XS equivalent that you
After that, it was quite simple really. There is a lack of useful
information as to how to create arrays and, especially, hashes. But even
these are straightforward enough once one has mastered reference
counting and what that all means.
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