How to restrict template parameter to pointer or random access iterator only?

Question

Is there a way to restrict the parameter type of a template function to only pointers or random-access iterators?

Say I am developing a sorting function which works

Answer 1

Use iterator traits:

static_assert(
    std::is_same<std::random_access_iterator_tag,
                 typename std::iterator_traits<Iterator>::iterator_category>::value,
    "The mySort() function only accepts random access iterators or raw pointers to an array.\n");