[C++-sig] How argument passing works with boost python ?

[cbailly]

Hi,

    I have read tutorials/FAQS about boost python but still, I do not  
understand how arguments are passed and converted (automatically ?) to the  
C++ types... since the profile of the methods are not declared.

For instance, in the Hello world example (from the tutorial)

BOOST_PYTHON_MODULE(hello)
{
     class_<World>("World")
         .def("greet", &World::greet)
         .def("set", &World::set)
     ;
}

"set" method takes a std::string argument (not declared). This is really a  
mystery...  Is the std::string type compatible with the str type ? Where  
is the conversion made ?. What if the method set takes std::string &  
parameter instead ?

Can somebody help me understand the mechanism for argument passing ?  
Thanks a lot,

Chris


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