On 18/02/15 05:13 PM, Christopher O'Grady wrote:
> Hi,
>
> Based on websearches we have done, we believe that boost-python does
> not allow passing arguments by non-const-reference (at least, not
> easily). Can someone confirm this is still the case, or point me to
> some documentation that discusses it? We think this prevents us from
> return multiple arguments from a method call.
>
> Looking through the mailing list archives, we believe this is
> impossible. If someone knows differently can you let us know?
If I understand your question, you aren't so much asking about const vs.
non-const arguments, but rather passing by value vs. passing by reference.
Whenever I want to return multiple values, I write a wrapper function
that packs the return values into a tuple, making the interface more
pythonic. For example:
void func(int input, int &out1, int &out2);
tuple pyfunc(int input)
{
int out1, out2;
func(input, out1, out2);
return make_tuple(out1, out2);
}
...
and then wrap pyfunc instead of func.
Does this address the problem you are trying to solve ?
Stefan
--
...ich hab' noch einen Koffer in Berlin...
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