Whenever they are passed as parameters to a function, the IO classes istream and ostream must be passed using a pass-by-referenc

Question

Gwar [14]

3 years ago

5

Whenever they are passed as parameters to a function, the IO classes istream and ostream must be passed using a pass-by-referenc

e parameter passing scheme.
Select one:

a. FALSE

b. TRUE

Computers and Technology

1 answer:

morpeh [17] · Answer 1 · 2022-05-20T11:15:19+03:00

Answer:

b. TRUE

Explanation:

Whenever they are passed as parameters to a function, the IO classes istream and ostream must be passed using a pass-by-reference parameter passing scheme.

This is because , assuming a pass by value semantics would require us to copy the value of the istream or ostream object which would be meaningless. In fact these objects don't even have a copy constructor at all. So such objects are always passed by reference.