C Data Types Test – 2

1. Which is correct with respect to the size of the data types?

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

    #include <stdio.h>
    int main()
    {
        float x = 'a';
        printf("%f", x);
        return 0;
    }

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

    #include <stdio.h>
    int main()
    {
        float f1 = 0.1;
        if (f1 == 0.1)
            printf("equal\n");
        else
            printf("not equal\n");
    }

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

    #include <stdio.h>
    int main()
    {
        float f1 = 0.1;
        if (f1 == 0.1f)
            printf("equal\n");
        else
            printf("not equal\n");
    }

5. What will be the output of the following C code on a 32-bit machine?

    #include <stdio.h>
    int main()
    {
        int x = 10000;
        double y = 56;
        int *p = &x;
        double *q = &y;
        printf("p and q are %d and %d", sizeof(p), sizeof(q));
        return 0;
    }

6. Which of the data types has the size that is variable?

7. What will be the output of the following C code on a 64 bit machine?

    #include <stdio.h>
    union Sti
    {
        int nu;
        char m;
    };
    int main()
    {
        union Sti s;
        printf("%d", sizeof(s));
        return 0;
    }