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Home C Programming Constants See What Others Are Saying!
  • Question
  • What will be the output of the program?
    #include<stdio.h>
    int fun(int **ptr);
    
    int main()
    {
        int i=10;
        const int *ptr = &i;
        fun(&ptr);
        return 0;
    }
    int fun(int **ptr)
    {
        int j = 223;
        int *temp = &j;
        printf("Before changing ptr = %5x\n", *ptr);
        const *ptr = temp;
        printf("After changing ptr = %5x\n", *ptr);
        return 0;
    }
    


  • Options
  • A. Address of i
    Address of j
  • B. 10
    223
  • C. Error: cannot convert parameter 1 from 'const int **' to 'int **'
  • D. Garbage value

  • Correct Answer
  • Error: cannot convert parameter 1 from 'const int **' to 'int **


  • More questions

    • 1. Bitwise | can be used to set a bit in number.

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 2. Can we have an array of bit fields?

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 3. By default structure variable will be of auto storage class

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 4. Bitwise can be used to reverse a sign of a number.

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 5. Is it necessary that in a function which accepts variable argument list there should be at least be one fixed argument?

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 6. Bitwise can be used to generate a random number.

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 7. A function that receives variable number of arguments should use va_arg() to extract the last argument from the variable argument list.

    • Options
    • A. True
    • B. False
    • Discuss
    • 8. Bitwise & can be used to check if more than one bit in a number is on.

    • Options
    • A. True
    • B. False
    • Discuss
    • 9. The preprocessor can trap simple errors like missing declarations, nested comments or mismatch of braces.

    • Options
    • A. True
    • B. False
    • Discuss
    • 10. It is necessary that a header files should have a .h extension?

    • Options
    • A. Yes
    • B. No
    • Discuss


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