using sort() in STL to sort an array

Question

I am writing code for a question which is: Write a method to sort an array of strings so that all the anagrams are next to each other. If my container is vector, it will be

Answer 1

The free functions std::begin() and std::end() (since C++11) are specialized for array types, but the size must be known to the compiler:

template 
int sortStrarr(T array[N])
{
    // 'using' allows ADL to select best overload
    using std::begin;
    using std::end;
    std::sort(begin(array), end(array));
}

If you have only the start and (run-time) size, then you can use pointers as the iterators:

template 
int sortStrarr(T array[], size_t len)
{
    std::sort(array, array+len);
}