On 07/07/10 09:53, Timothy Madden wrote:
Hi
I use the following type in my application:
boost::make_recursive_variant < boost::tuple < std::basic_string<TCHAR>, // id std::basic_string<TCHAR>, // name std::basic_string<TCHAR>, // desc std::basic_string<TCHAR>, // type std::basic_string<TCHAR>, // value std::vector<boost::recursive_variant_> // childList > >::type
However when I instantiate it and I try to populate (resize) the vector (member indexed 5 in the tuple, childList) I get: 'boost::recursive_variant_' : class has no constructors from Visual Studio 2008 SP1.
It looks like the boost::recursive_variant_ type is not substituted with the type of the enclosing variant by the make_recursive_variant meta-function. Am I missing something ? Is this is bug ?
I have also tried adding some more members to the variant, with no success.
Thank you, Timothy Madden Maybe you could just use pointers to the enclosing composite, like in:
#include <tr1/tuple> #include <vector> struct tuple_tree : std::tr1::tuple < float , int , std::vector<tuple_tree*>
{ }; int main(void) { tuple_tree tt; std::vector<tuple_tree*>&children=std::tr1::get<2>(tt); children.push_back(new tuple_tree); return std::tr1::get<1>(tt); }