Re: [Swig-user] wrapping c++ struct vector for python

[Tapio T. <tap...@tk...>]

Thank you for your tip Martin,

But how can I use this to wrap functions that use std::vector of these 
structs as a parameter?

like:

bool processData(std::vector<Ttest> &aPunchOfTests);

or

typedef std::vector<Ttest> TtestArray2;
bool processData(TtestArray2 &aPunchOfTests);

Thanks for any input,

Tapio



Michael Martin wrote:
> I think your best option would be to:
> 
> 1) Break each struct definition out into separate header files.
> 2) write a dirt simple swig wrapper for each type of struct.
> 3) import those into your application.
> 
> I.E:
> 
> Ttest.h:
> 
> struct Ttest{
> 	Ttest(int ai=0):
> 	i(ai){}
> 	int i;
> };
> 
> Ttest.i:
> 
> %module Ttest
> %[
> #include "Ttest.h"
> %}
> %include Ttest.h
> 
> Python:
> 
> import Ttest
> myTtest = Ttest()
> self.i = myTtest.i
> 
> In short, separate wrappers for the struct and the library.
> 
> 
> --- On *Thu, 1/29/09, Tapio Taipalus /<tap...@tk...>/* wrote:
> 
>     From: Tapio Taipalus <tap...@tk...>
>     Subject: [Swig-user] wrapping c++ struct vector for python
>     To: swi...@li...
>     Date: Thursday, January 29, 2009, 3:51 PM
> 
>     Greetings to all avid coders,
> 
>     My problem is this:
>     I need to wrap some c++ libraries that handles lots of data in structs 
>     and data sets of those structs in std::vectors.
> 
>     Example given in swig documentation 
>     http://www.swig.org/Doc1.3/Library.html#Library_nn15
>     is using just basic data types in vectors.
> 
> 
>     ---------8<--------------8<---------
> 
>     %module test
> 
>     %include "std_vector.i"
> 
>     %{
>     #include <vector>
>     %}
> 
> 
>     //this works
>     typedef std::vector<int> TtestArray1;
>     namespace std  {
>     	%template(TtestArray1) vector<int>;
>     }
> 
> 
>     //and this does not work. Why o why? Is this supposed to work or not?
>     struct Ttest{
>     	Ttest(int ai=0):
>     	i(ai){}
>     	int i;
>     };
> 
>     typedef std::vector<Ttest> TtestArray2;
>     namespace std  {
>     	%template(TtestArray2)
>      vector<Ttest>;
>     }
> 
>     ---------8<--------------8<---------
> 
>     The funny thing is that this still works but more or less randomly with 
>     some structs. I mean swig creates test_wrap.cpp without problem every 
>     time but produced file does not usually compile.
> 
>     Can anyone please shed some light on this topic,
> 
>     Tapio
> 
> 
> 
>     ------------------------------------------------------------------------------
>     This SF.net email is sponsored by:
>     SourcForge Community
>     SourceForge wants to tell your story.
>     http://p.sf.net/sfu/sf-spreadtheword
>     _______________________________________________
>     Swig-user mailing list
>     Swi...@li...
>     https://lists.sourceforge.net/lists/listinfo/swig-user
> 
>