Provide a fully generic version of the class ArrayVector of Code Fragment 6.2 using a templated class. Give a templated C++ function sum(v) that returns the sum of elements in an STL vector v. Use an...

Provide a fully generic version of the class ArrayVector of Code Fragment 6.2 using a templated class.

Give a templated C++ function sum(v) that returns the sum of elements

in an STL vector v. Use an STL iterator to enumerate the elements of v.

Assume that the element type of v is any numeric type that supports the +

operator.