C++ programming questions: 1. (6 pts) How may a constructor be overloaded? Choos

Question

C++ programming questions:

1. (6 pts) How may a constructor be overloaded? Choose all that apply a. Type of parameters b. Order of parameter types c. Return type d. By name 2. (3 pts) Consider the statement below. Which of the Big-Five (Destructor, copy constructor, move constructor, copy assignment operator, move assignment operator) functions will be used in this case? Car mustangCar getCarFromFactory("Mustang");// getCarFromFactory returns a Car object 3, (5 pts) Explain your rationale for choosing the answer you did for #2 above.

Explanation / Answer

1. A constructor is of form classname(type1 arg1, type2 arg2){}. As its name is fixed as the name of the class and it does not return anything, c and d are false.

Constructor can be overloaded using the parameter list only. Whenever a new object is created, the sequence as well as the types of the arguments being passed matter for deciding which constructor needs to be called. Hence both a and b are correct.

2. Copy constructor will be used

3. getCarFromFactory("Mustang") will return a Car Object. Hence this statement is of the form Car A= B where B is a Car object. This statement is equivalent to Car A(B) which is a call to copy constructor.

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