Re: [boost] [python] Expose a struct with a std::vector<std::string> member

Subject: Re: [boost] [python] Expose a struct with a std::vector<std::string> member
From: Tiago Coutinho (coutinhotiago_at_[hidden])
Date: 2009-02-04 11:54:04

Thank you very much. It solved my problem elegantly I would say :-)

On Wed, Feb 4, 2009 at 5:40 PM, Stefan Seefeld <seefeld_at_[hidden]> wrote:
> Tiago Coutinho wrote:
>>
>> Could you give me an example?
>>
>> I tried something like:
>>
>> #include <vector>
>> #include <string>
>> #include <boost/python.hpp>
>> #include <boost/python/suite/indexing/vector_indexing_suite.hpp>
>>
>> struct ExampleStruct
>> {
>>    std::vector<std::string> elements;
>> };
>>
>> class_<A>("A", init<>())
>>    .def_readonly("elements",
>> vector_indexing_suite<std::vector<std::string> >())
>> ;
>>
>> Of course the above code is wrong. My question is how should I
>> initialize the vector_indexing_suite.
>>
>
> See http://www.boost.org/doc/libs/1_37_0/libs/python/doc/v2/indexing.html:
>
> As you want to work with vector<string>, you have to expose that first:
>
> typedef std::vector<std::string> StringVector;
> class_<StringVector> sv("StringVector");
> sv.def(vector_indexing_suite<StringVector>());
>
> Now you can expose your ExampleStruct:
>
> class_<ExampleStruct> es("ExampleStruct");
> es.def_readonly("elements", &ExampleStruct::elements);
>
> HTH,
>      Stefan
>
> --
>
>     ...ich hab' noch einen Koffer in Berlin...
>
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