|go ahead... be a heretic|
porting C code to Perlby Discipulus (Monsignor)
|on Oct 22, 2017 at 19:27 UTC||Need Help??|
Discipulus has asked for the
wisdom of the Perl Monks concerning the following question:
Hello nuns and monks,
if you know me or not, I'm completely unaware of other programming languages; I just know a little Perl but I found myself in the rare situation where I need to translate a little code from C to Perl.
Infact I rapidly (*) understood that is a task to be done by hand, and I've been told many times that these two languages share a lot in their syntax.
My attempt is below and does not produces the output I expected (**).
I looked a bit to some description of the C syntax to try to understand if there were some difference between the C operator and the correspective Perl's one. For example for ++ autoincrement or arithmentics ones. I found nothing relevant: many operators seems to act the same. Doubts remain about the C array syntax ( int A[len] ?? that I read as the elelment len of the array A is an int but..).
Here below my attempt: can someone be so kind to point me where I lost in the translation? After a plain translation, when I possibly end with some working Perl code I'll arrange it into a more perlish version.
(*) Not so rapid: I found a thread here at PM with a link to a C to perl translator, but I missed the <ironic> tags and my hands called rapidly gcc -P -E file.c > file.pl using the compiler I have shipped within strawberry perl. Was not useful and the next line gcc -Larry -Wall file.c > file.pl revealed me it was an humoristic faq or well a iaq..
(**) Well i wanted to verify that the C code printed what I expected and I tried blindly using gcc to compile it (??) and using Inline::C but I had no success to not even install it on my strawberry perl.
If you need my C source you can, obviously perl -lne 'print if s/\s?#\s//' my_post.pl
There are no rules, there are no thumbs..
Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.