16. What will initialize the list of arguments in stdarg.h header file?

1. 1. va_start

   
   
   

   2. va_arg

   
   
   

   3. va_list

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   va_start

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17. What we can’t place followed by the non-default arguments?

1. 1. default arguments

   
   
   

   2. trailing arguments

   
   
   

   3. both default & trailing arguments

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   default arguments

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18. If we start our function call with default arguments means, what will be proceeding arguments?

1. 1. default arguments

   
   
   

   2. user argument

   
   
   

   3. empty arguments

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   As a rule, the default argument must be followed by default arguments only.

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19. What is the default return type of a function?

1. 1. char

   
   
   

   2. float

   
   
   

   3. void

   
   
   

   4. int

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   void

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20. What is the output of this program?
    

    #include 
        using namespace std;
        int function(int p = 12, int q)
        {
            int s;
            s = p + q;
            return s;
        }
        int main()
        {
            cout << function(15);
            return 0;
        }
    

1. 1. 15

   
   
   

   2. 12

   
   
   

   3. Runtime Error

   
   
   

   4. Compilation Error

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   We can’t use the user argument in front of the default argument.
   Compilation Error
   

   In function 'int function(int, int)':
   3:9: error: default argument missing for parameter 2 of 'int function(int, int)'
   

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