[C++-sig] How argument passing works with boost python ?
b.christophe at yahoo.fr
Tue Aug 15 13:49:27 CEST 2006
Thanks for your answer
Can you tell me if my understanding is ok:
Does it mean that each time a str python object is passed as an argument,
then an automatic conversion is made to std::string type ? Regardless of
the prototype of the method, just because converters have been registered.
str object -> alway converted to std::string ?
If a dict object is passed, no conversion is made ?
Sorry, it is still a bit confusing...
Le Tue, 15 Aug 2006 12:26:05 +0200, Roman Yakovenko
<roman.yakovenko at gmail.com> a écrit:
> On 8/15/06, cbailly <b.christophe at yahoo.fr> wrote:
>> I have read tutorials/FAQS about boost python but still, I do not
>> understand how arguments are passed and converted (automatically ?) to
>> C++ types... since the profile of the methods are not declared.
>> For instance, in the Hello world example (from the tutorial)
>> .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 ?
> This link http://boost.org/libs/python/doc/v2/faq.html#custom_string
> will help you to
> understand what is going on in this specific case.
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