Parameters in c++ templates

Question

Function template example

template<typename T, int n>
T max(T (&arr)[n])
{
   T maxm = arr[0];
   for(int i = 1; i <n; ++i)
      if (maxm < arr[i])
       maxm = arr[i];

   return maxm;
}

Is arr also a type parameter like T ?

Answer 1

arr is a name of a function parameter. It's not a type parameter. Its type is a reference to an array of element type T and length n.