Structure in C Language - Quiz

Q: What is the output of this C code?

    #include <stdio.h>
    struct student
    {
        char *name;
    };
    struct student s;
    struct student fun(void)
    {
        s.name = "newton";
        printf("%s\n", s.name);
        s.name = "alan";
        return s;
    }
    void main()
    {
        struct student m = fun();
        printf("%s\n", m.name);
        m.name = "turing";
        printf("%s\n", s.name);
    }

Q: What will be the output of the following C code?

    #include <stdio.h>
    struct temp
    {
        int a;
    } s;
    void func(struct temp s)
    {
        s.a = 10;
        printf("%d\t", s.a);
    }
    main()
    {
        func(s);
        printf("%d\t", s.a);
    }

Q: Which of the following is not possible under any scenario?

Q: The output of the code below is

    #include <stdio.h>
    struct student
    {
        char *name;
    };
    struct student fun(void)
    {
        struct student s;
        s.name = "alan";
        return s;
    }
    void main()
    {
        struct student m = fun();
        s.name = "turing";
        printf("%s", m.name);
    }

Q: Which operator connects the structure name to its member name?

Q: Which of the following structure declaration will throw an error?

Q: What is the output of this C code?

    #include <stdio.h>
    struct
    {
        int k;
        char c;
    } p;
    int p = 10;
    int main()
    {
        p.k = 10;
        printf("%d %d\n", p.k, p);
    }

Q: What is the output of this C code(according to C99 standard)?

    #include <stdio.h>
    struct p
    {
        int k;
        char c;
        float f;
    };
    int main()
    {
        struct p x = {.c = 97, .f = 3, .k = 1};
        printf("%f\n", x.f);
    }

Q: What is the output of this C code?

    #include <stdio.h>
    struct point
    {
        int x;
        int y;
    };
    void foo(struct point*);
    int main()
    {
        struct point p1 = {1, 2};
        foo(&p1);
    }
    void foo(struct point *p)
    {
        printf("%d\n", *p.x++);
    }

Q: What is the output of this C code?

    #include <stdio.h>
    struct student
    {
        char *name;
    };
    struct student fun(void)
    {
        struct student s;
        s.name = "alan";
        return s;
    }
    void main()
    {
        struct student m = fun();
        printf("%s", m.name);
    }