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Pointers - Point Out Correct Statements

  1. Which of the following statements correctly declare a function that receives a pointer to pointer to a pointer to a float and returns a pointer to a pointer to a pointer to a pointer to a float?

    2. A.
    float **fun(float***);
    B.
    float *fun(float**);
    C.
    float fun(float***);
    D.
    float ****fun(float***);

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  2. Point out the compile time error in the program given below.

    #include stdio.h 

int  main() {

   int *x;

   *x=100;
   return 0;

}

    3. A.

    Error: invalid assignment for x
    B.

    Error: suspicious pointer conversion
    C.

    No error
    D.

    None of above

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  3. Which of the statements is correct about the program?

     #include
  int main()
  {    
     float a=3.14;  
     char *j;     
     j = (char*)&a;    
     printf("%d\n", *j);    
     return 0;
 }

    4. A.

    It prints ASCII value of the binary number present in the first byte of a float variable a.
    B.

    It prints character equivalent of the binary number present in the first byte of a float variable a.
    C.

    It will print 3
    D.

    It will print a garbage value

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  4. In the following program add a statement in the function fun() such that address of a gets stored in j?

    #include
 int main() 
 {    
     int *j;   
     void fun(int**);    
     fun(&j);
     return 0;
 } 
 void fun(int **k)
 {     
     int a=10;  
    /* Add a statement here */ 
 }

     

    5. A.

    **k=a;
    B.

    k=&a;
    C.

    *k=&a
    D.

    &k=*a

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  5. Which of the following statements correct about k used in the below statement?
    char ****k;

    6. A.
    k is a pointer to a pointer to a pointer to a char
    B.
    k is a pointer to a pointer to a pointer to a pointer to a char
    C.
    k is a pointer to a char pointer
    D.
    k is a pointer to a pointer to a char

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  6. Which of the statements is correct about the program?

    #include 
 int main() 
 {    
     int arr[3][3] = {1, 2, 3, 4};     
     printf("%d\n", *(*(*(arr))));     
     return 0; 
 }

    7. A.

    Output: Garbage value
    B.

    Output: 1
    C.

    Output: 3
    D.

    Error: Invalid indirection

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  7. Which statement will you add to the following program to ensure that the program outputs "FRESHERGATE" on execution?

    #include 
 int main() 
 {
     char s[] = "FRESHERGATE"; 
     char t[25];   
     char *ps, *pt;    
     ps = s;     
     pt = t;     
     while(*ps)     
         *pt++ = *ps++;
     
 /* Add a statement here */       
    printf("%s\n", t);
    return 0;
 }

    8. A.

    *pt='';
    B.

    pt='\0';
    C.

    pt='\n';
    D.

    *pt='\0';

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