C Pointers Test – 1

1. Which of the following does not initialize ptr to null (assuming variable declaration of a as int a=0;)?

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

    #include <stdio.h>
    int x = 0;
    void main()
    {
        int *ptr = &x;
        printf("%p\n", ptr);
        x++;
        printf("%p\n ", ptr);
    } 

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

    #include <stdio.h>
    int x = 0;
    void main()
    {
        int *const ptr = &x;
        printf("%p\n", ptr);
        ptr++;
        printf("%p\n ", ptr);
    }

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

    #include <stdio.h>
    void main()
    {
        int x = 0;
        int *ptr = &5;
        printf("%p\n", ptr);
    }

5. Which is an indirection operator among the following?

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

    #include <stdio.h>
    void main()
    {
        int x = 0;
        int *ptr = &x;
        printf("%p\n", ptr);
        ptr++;
        printf("%p\n ", ptr);
    }

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

    #include <stdio.h>
    void main()
    {
        int x = 0;
        int *ptr = &x;
        printf("%d\n", *ptr);
    }