Question

Which of the following statements creates a smart pointer for an array of 10 int values? a) uniquecint[]> p (new int [10]); b) int p = new int [10]; c) unique ptrcint[]> p (new int [10]); d) unique ptrcint> p(new int [10]);

Answer 1

The statement that correctly creates a smart pointer for an array of 10 int values is c) unique_ptr p (new int [10]); as it correctly uses the array specialization for smart pointers in C++.

Step-by-step explanation:

The correct statement to create a smart pointer for an array of 10 int values is c) unique_ptr<int[]> p (new int [10]);

The <int[]> template specialization informs the unique_ptr that it is managing an array, which requires special behavior for deletion using delete[] instead of delete.

Option a) contains a typo and could be a misunderstanding of the correct syntax. Option b) uses raw pointer syntax and does not create a smart pointer. Option d) also uses the incorrect unique_ptr syntax as it does not indicate that an array is being managed.