31. What constant defined in header returns the number of bits in a char?

1. 1. SIZE_CHAR

   
   
   

   2. CHAR_SIZE

   
   
   

   3. CHAR_BIT

   
   
   

   4. BIT_CHAR

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   CHAR_BIT

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32. Suppose in a hypothetical machine, the size of char is 32 bits. What would sizeof(char) return?

1. 1. 1

   
   
   

   2. Implementation dependent

   
   
   

   3. Machine dependent

   
   
   

   4. 4

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   The standard does NOT require a char to be 8-bits, but does require that sizeof(char) return 1.

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33. Is the size of character literals different in C and C++?

1. 1. Yes, they are different

   
   
   

   2. Implementation defined

   
   
   

   3. No, they are not different

   
   
   

   4. Can’t say

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   In C++, sizeof(‘a’) == sizeof(char) == 1. In C however, sizeof(‘a’) == sizeof(int).

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34. In C++, what is the sign of character data type by default?

1. 1. Unsigned

   
   
   

   2. Implementation dependent

   
   
   

   3. Signed

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   The standard does not specify if plain char is signed or unsigned. There are three distinct character types according to the standard: char, signed char and unsigned char.

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35. What is the output of this program?
    

    #include 
    using namespace std;
        int main()
        {
            char ch = 'M';
     
            cout<< ch;
            return 0;
        }
    

1. 1. Compilation Error

   
   
   

   2. Runtime Error

   
   
   

   3. M

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   M

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