Question

What is the meaning of the data returned by the sizeof() function?

(a) Length

(b) Location

(c) Pointer

(d) Memory

I had been asked this question by my school principal while I was bunking the class.

The above asked question is from The sizeof() Function topic in section Arduino Programming of Arduino

Answer 1

Correct choice is (a) Length

The best explanation: When the sizeof() function is used, it returns a number which corresponds to the length of the structure in question. It’s used by programmers for finding the, say number of elements in an array, or the number of characters in a string, etc…