Nested C++ template parameters for functions

Question

I want to have a templated function in C++, where one template parameter is itself a template of another template parameter. If that doesn\'t make any sense, take the follow

Answer 1

std::vector has two parameters, type and allocator. Try this

template  class V>
void print_container(V &con)
{
}

print_container(vec);

This will work for vector, list, etc., but will not work with map, set.

However, since you use auto you can use C++11 and then you can to this:

template  class V, typename... Args>
void print_container(V &con)

or

template