C - Pointers - Discussion

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Q.

main()

{
char *p;
printf("%d %d ",sizeof(*p),sizeof(p));
}
A. 1 1 B. 1 2
C. 1 4 D. 2 2

Answer: Option B
Explaination:

The sizeof() operator gives the number of bytes taken by its operand. P is a character pointer, which needs one byte for storing its value (a character). Hence sizeof(*p) gives a value of 1. Since it needs two bytes to store the address of the character pointer sizeof(p) gives 2.



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