Pick the best statement for the below program snippet:
struct {int a[2];} arr[] = {1,2};
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(A)
No compile error and it’ll create array arr of 2 elements. Each of the element of arr contain a struct field of int array of 2 elements. arr[0]. a[0] would be 1 and arr[1].a[0] would be 2.
(B)
No compile error and it’ll create array arr of 2 elements. Each of the element of arr contain a struct field of int array of 2 elements. arr[0]. a[0] would be 1 and arr[0].a[1] would be 2. The second element arr[1] would be ZERO i.e. arr[1].a[0] and arr[1].a[1] would be 0.
(C)
No compile error and it’ll create array arr of 1 element. Each of the element of arr contain a struct field of int array of 2 elements. arr[0]. a[0] would be 1 and arr[0].a[1] would be 2.
(D)
None of the above
Answer: (C)
Explanation:
Since size of array arr isn’t given explicitly, it would be decided based on the initialization here. Without any curly braces, arr is initialized sequentially i.e. arr[0].a[0] would be 1 and arr[0].a[1] would be 2. There’s no further initialization so size of arr would be 1. Correct answer is C.
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