C Pointers Test – 3

1. Which of the following can never be sent by call-by-value?

2. What will be the output of the following C code?

    #include <stdio.h>
    void m(int p, int q)
    {
        printf("%d %d\n", p, q);
    }
    void main()
    {
        int a = 6, b = 5;
        m(a);
    } 

3. What will be the output of the following C code?

    #include <stdio.h>
    void m(int *p, int *q)
    {
        int temp = *p; *p = *q; *q = temp;
    }
    void main()
    {
        int a = 6, b = 5;
        m(&a, &b);
        printf("%d %d\n", a, b);
    } 

4. What will be the output of the following C code?

    #include <stdio.h>
    void m(int p)
    {
        printf("%d\n", p);
    }
    void main()
    {
        int a = 6, b = 5;
        m(a, b);
        printf("%d %d\n", a, b);
    } 

5. Which type of variables can have the same name in a different function?

6. What will be the output of the following C code?

    #include <stdio.h>
    void m(int p, int q)
    {
        int temp = p;
        p = q;
        q = temp;
    }
    void main()
    {
        int a = 6, b = 5;
        m(a, b);
        printf("%d %d\n", a, b);
    } 

7. What will be the output of the following C code?

    #include <stdio.h>
    void m(int *p)
    {
        int i = 0;
        for(i = 0;i < 5; i++)
        printf("%d\t", p[i]);
    }
    void main()
    {
        int a[5] = {6, 5, 3};
        m(&a);
    } 

8. Arguments that take input by user before running a program are called?

9. What is the maximum number of arguments that can be passed in a single function?