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

    #include <stdio.h>
        int main()
        {
            int n = 12;
            void *ptr = &n;
            printf("%d\n", (int)*ptr);
            return 0;
        }
    

1. 1. Compilation Error

   
   
   

   2. Garbage value

   
   
   

   3. 12

   
   
   

   4. Nothing

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   Compilation Error
   

   main.c: In function ‘main’:
   main.c:6:29: warning: dereferencing ‘void *’ pointer
            printf("%d\n", (int)*ptr);
                                ^~~~
   main.c:6:24: error: invalid use of void expression
            printf("%d\n", (int)*ptr);
   

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

     #include <stdio.h>
        int main()
        {
            int num = 110;
            void *ptr = #
            printf("%f\n", *(float*)ptr);
            return 0;
        }
    

1. 1. 110

   
   
   

   2. Undefined behaviour

   
   
   

   3. Garbage value

   
   
   

   4. Compilation Error

   
   
   

   5. 0.000000

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: E

   0.000000

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

    #include <stdio.h>
        int *fun();
        int main()
        {
            int *ptr = fun();
            printf("%d\n", *ptr);
        }
        int *fun()
        {
            int *p = (int*)malloc(sizeof(int));
            *p = 11;
            return p;
        }
    

1. 1. Compilation Error

   
   
   

   2. 11

   
   
   

   3. Undefined behaviour

   
   
   

   4. Segmentation fault/runtime crash since pointer to local variable is returned

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   11

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

    #include <stdio.h>
        int main()
        {
            int *p, n = 15;
            p = &n;
            *p += 10;
            printf("%d, %d\n", *p, n);
        }
    

1. 1. 15

   
   
   

   2. 10

   
   
   

   3. 25, 25

   
   
   

   4. 15 10

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   25, 25

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60. Which is an indirection operator among the following?

1. 1. .

   
   
   

   2. &

   
   
   

   3. *

   
   
   

   4. ->

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   *

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