Hi, I'm wondering if anyone has successfully embedded a boost::variant<> within a recursive variant. The program below illustrates what I'm trying to do: ============= #include <vector> #include <string> #include <boost/variant.hpp> typedef boost::variant< double, std::string > a_t; struct b_t { }; typedef boost::make_recursive_variant< a_t, b_t, std::vector<boost::recursive_variant_> >::type c_t; int main() { a_t a(20.0); c_t c(a); return 0; } ============= With GCC, this gives me: ... boost/variant/variant.hpp:1269: error: no matching function for call to 'boost::detail::variant::initializer_root::initialize(void*, double&)' Normal variant-within-a-variant works fine (i.e. if I remove the vector, and just declare c_t without make_recursive_variant<>). And make_recursive_variant<> with plain types works as well (i.e. if a_t is a non-variant type). But I can't figure out how to make the two work together... Any help would be greatly appreciated. Thanks! -- Matthew L. Creech