[C++-sig] Question about passing ordinary pointers (like int*) to functions

[David Abrahams]

"Shandong Han" <shandong.han at mizuho-sc.com> writes:

> Sorry if this is too naive, but I searched the internet and digged out the
> previous mails here without any luck...
>
> I am new to this, and my question is pretty simple: how to call functions
> which use a pointer to return value? Sample code is as follows:
>
> ===================================
>
> #include "boost/python.hpp"
> #include "boost/python/suite/indexing/vector_indexing_suite.hpp"
>
> namespace bp = boost::python;
>
> int add(int a, int b, int* s)
> {
> 	*s = a + b;
> 	return 0;
> }

Just put a thin wrapper around the function:

     boost::python::tuple add(int a, int b)
     {
         return boost::python::make_tuple(0, a+b);
     }

Then wrap that

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com