Is there a standard C++ equivalent of IEnumerable in C#?

Question

Or is it safe to use vector if the Enumerator of T is just listing all the elements?

Answer 1

The standard C++ way is to pass two iterators:

template
void some_function(ForwardIterator begin, ForwardIterator end)
{
    for (; begin != end; ++begin)
    {
        do_something_with(*begin);
    }
}

Example client code:

std::vector vec = {2, 3, 5, 7, 11, 13, 17, 19};
some_function(vec.begin(), vec.end());

std::list lst = {2, 3, 5, 7, 11, 13, 17, 19};
some_function(lst.begin(), lst.end());

int arr[] = {2, 3, 5, 7, 11, 13, 17, 19};
some_function(arr + 0, arr + 8);

Yay generic programming!