Answer / susie

Answer :

Yes.

Explanation:

*b is a pointer to type struct a and so is legal. The
compiler knows, the size of the pointer to a structure even
before the size of the structure

is determined(as you know the pointer to any type is of same
size). This type of structures is known as
‘self-referencing’ structure.

Answer / pavan_mustyala

The code snippet is absolutely valid and this concept which
is comes under "self- referential" concept is used to
develop linked lists.

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