Sisyphus <[EMAIL PROTECTED]> wrote:
----- Original Message -----
From: "second axiom"
To:
Sent: Sunday, March 30, 2008 3:56 PM
Subject: Inline::C - including an external file and nothing else
> Hello.
>
> I'm able to create Perl script that uses Inline C and also links to a
> precompiled C library, but I'm trying to do something else that I think
> should be equivalent:
>
> #!/usr/bin/perl -w
> use Inline C => <
> #include
> ENDC
> test(2);
>
> I.e., if I paste the contents of myCcode.c in place of the #include, I get
> the expected results. I'm trying to get Inline to do that and ignore the
> fact that the code comes from a separate file, but it refuses to recognize
> the functions in myCcode.c. (Basically, I prefer to avoid compiling the
> code myself.)
>
I created a file called 'src/myCcode.c' which contained:
void greet() {
printf("Hello from myCcode.c\n");
}
I then ran the following Inline::C script:
use warnings;
use Inline C => 'src/myCcode.c';
greet();
which, behaved as desired and printed out (after compiling):
Hello from myCcode.c
However, for some reason, it seems that myCcode.c needs to be in a
subdirectory. If it's placed in the same directory as the Inline::C script,
it doesn't work. This is mentioned in 'perldoc Inline-FAQ'.
Cheers,
Rob
Hi, Rob.
Thanks for the reply; let me know if I'm breaking any rules of replies.
I had indeed tried your suggestion (use Inline C => 'src/myCcode.c';) and
gotten it to work, but my Inline::C script has additional C code that
#include's myCcode.c. I'm able to call the functions in myCcode.c and access
its global vars from Perl and from Inline::C, but the two are operating on
separate instantiations of those variables.
What I'm trying to accomplish seems to be a combination or modification of
current options, a concatenation of a source file and the Inline::C code I
have in the script:
use Inline (C => 'C/myCcode.c', <<ENDC);
[new C code here]
ENDC
OR a concatenation of two source files:
use Inline (C => 'C/myCcode.c', 'C/moreC.c');
(Or both, for that matter.) This would mean that any calls from Perl or from
the Inline::C code would be operating on the same instantiation of the global
variables in C/myCcode.c. This alternative fails, but for another reason:
use Inline C => <<ENDC, AUTO_INCLUDE => '#include "C/myCcode.c"';
OR:
use Inline C => <<ENDC
#include "C/myCcode.c"
In both cases, Inline::C can access the functions and vars in myCcode.c, but
Perl cannot.
It doesn't matter to me if this is accomplished through eval, symbolic links,
whatever. Based on your reply to a previous question, it sounds like I need to
modify C.pm.
Thanks again.
AndyD
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