hai, I am using Swig/perl/C++. I want to call c++ integer vector from perl. But I can't seem to be able to use a C++ vector of integers from Perl, using SWIG 1.3.19.

Using the following in the SWIG interface file: 

%module mycpp
%include "std_vector.i"
namespace std {
  %template(IntVector) vector<int>;
}
extern double average(std::vector<int> v);

Having the C++ file as follows:

#include <vector>
#include <algorithm>
#include <functional>
#include <numeric>

double average(std::vector<int> v) {
    return std::accumulate(v.begin(),v.end(),0.0)/v.size();
}

[download]
Running the following perl: 
use mycpp;
ny $sv = mycpp::IntVector();
$sv->push(1);
$sv->push(2);
$sv->push(3);
$sv->push(4);
$avg = average($sv);

[download]
I got the following error message: 
Can't locate auto/mycpp/IntVector.al in @INC (@INC contains:
/usr/perl5/5.6.0/i386-linux /usr/lib/perl5/site_perl/5.6.0/i386-linux
/usr/prel5/site_perl/5.6.0 /usr/lib/perl5/site_perl .) at mycpp.pl lin
+e 2.

[download]
Could someone please tell how to rectify this error and how to call C++ vector of integer from perl.

Thanx.

In reply to Calling C++ integer vector from perl by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.