C Programming - Pointers

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Exercise

"Nothing in life is to be feared, it is only to be understood."

- Marie Curie

Which of the following statements correctly declare a function that receives a pointer to pointer to a pointer to a float and returns a pointer to a pointer to a pointer to a pointer to a float?

A.	float fun(float*);	B.	float fun(float*);
C.	float fun(float***);	D.	float **fun(float*);

Which of the statements is correct about the program?

#include<stdio.h>

int main()
{
    int i=10;
    int *j=&i;
    return 0;
}

A.	j and i are pointers to an int
B.	i is a pointer to an int and stores address of j
C.	j is a pointer to an int and stores address of i
D.	j is a pointer to a pointer to an int and stores address of i

Which of the statements is correct about the program?

#include<stdio.h>

int main()
{
    float a=3.14;
    char *j;
    j = (char*)&a;
    printf("%d\n", *j);
    return 0;
}

A.	It prints ASCII value of the binary number present in the first byte of a float variable a.
B.	It prints character equivalent of the binary number present in the first byte of a float variable a.
C.	It will print 3
D.	It will print a garbage value

In the following program add a statement in the function fun() such that address of a gets stored in j?

#include<stdio.h>
int main()
{
    int *j;
    void fun(int**);
    fun(&j);
    return 0;
}
void fun(int **k)
{
    int a=10;
    /* Add a statement here */
}

A.	**k=a;	B.	k=&a;
C.	*k=&a	D.	&k=*a

Which of the following statements correct about k used in the below statement?
char ****k;

A.	k is a pointer to a pointer to a pointer to a char
B.	k is a pointer to a pointer to a pointer to a pointer to a char
C.	k is a pointer to a char pointer
D.	k is a pointer to a pointer to a char