Hi,

Try use this flag in your compilation, -DBOOST_PYTHON_MAX_ARITY=XX


The default value is 15, the I think thi can solve your problem.

BR
Renato Araujo Oliveira Filho




On Mon, Oct 26, 2009 at 2:01 PM, Eilif Mueller <eilif@[...].de>  wrote:
>  Hi,
> 
>  Wrapping a function f with 16 arguments:
> 
>  int f(int x1, int x2, int x3, int x4, int x5,
>       int x6, int x7, int x8, int x9, int x10,
>       int x11, int x12, int x13, int x14, int x15,
>       int x16) {
> 
>   return x1;
> 
>  }
> 
>  BOOST_PYTHON_MODULE(test)
>  {
> 
>   def("f",f);
> 
>  }
> 
> 
>  yields
> 
>  /usr/include/boost/python/make_function.hpp: In function ‘boost::python::api::object boo
st::python::make_function(F) [with F = int (*)(int, int, int, int, int, int, int, int, int, 
int, int, int, int, int, int, int)]’:
>  /usr/include/boost/python/def.hpp:82:   instantiated from ‘boost::python::api::object b
oost::python::detail::make_function1(T, ...) [with T = int (*)(int, int, int, int, int, int,
 int, int, int, int, int, int, int, int, int, int)]’
>  /usr/include/boost/python/def.hpp:91:   instantiated from ‘void boost::python::def(cons
t char*, Fn) [with Fn = int (*)(int, int, int, int, int, int, int, int, int, int, int, int, 
int, int, int, int)]’
>  test_module.cpp:20:   instantiated from here
>  /usr/include/boost/python/make_function.hpp:104: error: no matching function for call to â
€˜get_signature(int (*&)(int, int, int, int, int, int, int, int, int, int, int, int, int, in
t, int, int))’
>  make: *** [stream.o] Error 1
> 
> 
>  whereas all is fine if that last arg "int x16" is removed.  All of gcc-4.2, gcc-4.3 and g
cc-4.4 seem to exhibit the same behaviour.  Same effect for libboost-python1.38-dev on Ubun
tu karmic and libboost-python1.35-dev on Ubuntu jaunty.
> 
>  I need that 16th arg and more ... about 32 args, I think.
> 
>  Thanks for any help you can offer.
> 
>  cheers,
> 
>  Eilif
> 
> 
> 
> 
> 
> 
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