logo

CuriousTab

CuriousTab

Discussion


Home C Programming C Preprocessor See What Others Are Saying!
  • Question
  • Will the following program print the message infinite number of times?
    #include<stdio.h>
    #define INFINITELOOP while(1)
    
    int main()
    {
        INFINITELOOP
        printf("CuriousTab");
        return 0;
    }
    


  • Options
  • A. Yes
  • B. No

  • Correct Answer
  • Yes 

    Explanation
    Yes, the program prints "CuriousTab" and runs infinitely.

    The macro INFINITELOOP while(1) replaces the text 'INFINITELOOP' by 'while(1)'

    In the main function, while(1) satisfies the while condition and it prints "CuriousTab". Then it comes to while(1) and the loop runs infinitely.


    More questions

    • 1. What will be the output of the program (in Turbo C under DOS)?
      #include<stdio.h>
      
      int main()
      {
          char huge *near *far *ptr1;
          char near *far *huge *ptr2;
          char far *huge *near *ptr3;
          printf("%d, %d, %d\n", sizeof(ptr1), sizeof(ptr2), sizeof(ptr3));
          return 0;
      }
      

    • Options
    • A. 4, 4, 8
    • B. 2, 4, 4
    • C. 4, 4, 2
    • D. 2, 4, 8
    • Discuss
    • 2. What will be the output of the program in 16-bit platform (under DOS)?
      #include<stdio.h>
      
      int main()
      {
          struct node
          {
              int data;
              struct node *link;
          };
          struct node *p, *q;
          p = (struct node *) malloc(sizeof(struct node));
          q = (struct node *) malloc(sizeof(struct node));
          printf("%d, %d\n", sizeof(p), sizeof(q));
          return 0;
      }
      

    • Options
    • A. 2, 2
    • B. 8, 8
    • C. 5, 5
    • D. 4, 4
    • Discuss
    • 3. Is it true that too many recursive calls may result into stack overflow?

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 4. The operator used to get value at address stored in a pointer variable is

    • Options
    • A. *
    • B. &
    • C. &&
    • D. ||
    • Discuss
    • 5. If the size of integer is 4bytes, What will be the output of the program?
      #include<stdio.h>
      
      int main()
      {
          int arr[] = {12, 13, 14, 15, 16};
          printf("%d, %d, %d\n", sizeof(arr), sizeof(*arr), sizeof(arr[0]));
          return 0;
      }
      

    • Options
    • A. 10, 2, 4
    • B. 20, 4, 4
    • C. 16, 2, 2
    • D. 20, 2, 2
    • Discuss
    • 6. What do the following declaration signify?
      void *cmp();

    • Options
    • A. cmp is a pointer to an void type.
    • B. cmp is a void type pointer variable.
    • C. cmp is a function that return a void pointer.
    • D. cmp function returns nothing.
    • Discuss
    • 7. A function may have any number of return statements each returning different values.

    • Options
    • A. True
    • B. False
    • Discuss
    • 8. In C all functions except main() can be called recursively.

    • Options
    • A. True
    • B. False
    • Discuss
    • 9. Input/output function prototypes and macros are defined in which header file?

    • Options
    • A. conio.h
    • B. stdlib.h
    • C. stdio.h
    • D. dos.h
    • Discuss
    • 10. For a function receives variable number of arguments it is necessary that the function should receive at least one fixed argument.

    • Options
    • A. True
    • B. False
    • Discuss


    Comments

    There are no comments.

Enter a new Comment