Consider the following statements S1, S2 and S3 :
S1 : In call-by-value, anything that is passed into a function call is unchanged in the caller’s scope when the function returns.
S2 : In call-by-reference, a function receives implicit reference to a variable used as argument.
S3 : In call-by-reference, caller is unable to see the modified variable used as argument.
(A) S3 and S2 are true.
(B) S3 and S1 are true.
(C) S2 and S1 are true.
(D) S1, S2, S3 are true.
Answer: (C)
Explanation:
In call-by-value, anything that is passed into a function call is unchanged in the caller’s scope when the function returns. Correct.
In call-by-reference, a function receives implicit reference to a variable used as argument. Correct.
In call-by-reference, caller is unable to see the modified variable used as argument. Incorrect.
So, option (C) is correct.
Quiz of this Question
Whether you're preparing for your first job interview or aiming to upskill in this ever-evolving tech landscape,
GeeksforGeeks Courses are your key to success. We provide top-quality content at affordable prices, all geared towards accelerating your growth in a time-bound manner. Join the millions we've already empowered, and we're here to do the same for you. Don't miss out -
check it out now!
Last Updated :
03 Jul, 2018
Like Article
Save Article