template template total specialization - Stack Overflow 使う機会はあまりないでしょうけど。 #include <vector> #include <list> template <template <class...> class Container> struct X { Container<int> c; }; template <> struct X<std::vector> { std::vector<std::string> c; }; int main() { X<std::list> ls; ls.c.push_back</std::list></std::string></std::vector></int></template></list></vector>…