(C challenge Question) Calling a function f with an array variable a[3], where a is an array is equivalent to:

Question

Q. Calling a function f with an array variable a[3], where a is an array is equivalent to:

--> f(a[3])
--> f(* (a + 3))
--> f(3[a])
--> all the mentioned

## its correct answer is [option 4]

// i don't know how option 3 is also correct.

Answer 1

Since a[3] is translated into *(a+3), then 3[a] is translated into *(3+a), which is exactly the same, because the addition is commutative.

Answer 2

BlackShadow334
I don't know about other languages but I'm sure that this is working in C++, C, and not in Python. In other words, not working on all languages.

Answer 3

As far as I know, in C:

array[index] == index[array]

Answer 4

《 Nicko12 》 Thanks man i didn't knew that, but is it applicable for all language or only for C.

Answer 5

i got this question in c challenge, and i lost it. 🤕

// i understand that option 1 and 2 are correct, but i dont understand, why option 3 is also correct.
// can anyone explain this??