Connectors connect two or more shapes by connection sites.

Which of the following statements about a unique_ptr object is true?

a. A unique_ptr is a “smart pointer” for managing dynamically allocated memory. b. When a unique_ptr goes out of scope, its destructor automatically returns the managed memory to the free store. c. You must explicitly delete the memory that’s managed by a unique_ptr before the object goes out of scope. d. All of the above.

Which of the following is the state bit that is set when an attempted operation fails?

a. ios::failbit b. ios::badbit c. ios::hardfail d. ios::goodbit e. None of these