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C Quiz – 108 | Question 2

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  • Difficulty Level : Medium
  • Last Updated : 28 Jun, 2021
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Anyone of the followings can be used to declare a node for a singly linked list. If we use the first declaration, “struct node * nodePtr;” would be used to declare pointer to a node. If we use the second declaration, “NODEPTR nodePtr;” can be used to declare pointer to a node.

/* First declaration */
struct node {
int data;
struct node * nextPtr;
/* Second declaration */
typedef struct node{
int data;
NODEPTR nextPtr;


Answer: (B)

Explanation: The typedef usage is incorrect. Basically, we can’t use yet to be typedef-ed data type inside while applying typedef itself. Here, NODEPTR is yet to be defined (i.e. typedef-ed) and we are using NODEPTR inside the struct itself.

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