On 8/21/07, Steven Watanabe <watanabesj@gmail.com> wrote:
So that
int BOOST_LOCAL_FUNCTION(name, (i)(j), (int x)(int y)) { //body here } BOOST_LOCAL_FUNCTION_END
expands to
int result_tag; typedef BOOST_TYPEOF(result_tag) result_type; typedef BOOST_TYPEOF(i) type_0; typedef BOOST_TYPEOF(j) type_1; typedef boost::tuple<type_0, type_1> tuple_type; typedef local_function<tuple_type, result_type(tuple_type, int x, int y)> function_type; function_type name(make_tuple(i, j)); { function_type* function_ptr = &name; struct body { result_type impl(tuple_type& args, int x, int y) { type_0& i = boost::get<0>(args); type_1 j = boost::get<1>(args); { //body here } } }; function_ptr->f = &body::impl; }
This requires that result_tag be default constructible. I think you want this instead: int *result_tag; typedef BOOST_TYPEOF(*result_tag) result_type; ... Zach Laine