31. C preprocessors can have compiler specific features.

1. 1. Depends on the platform

   
   
   

   2. Depends on the standard

   
   
   

   3. False

   
   
   

   4. True

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   True

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32. What is #include <stdio.h>?

1. 1. Inclusion directive

   
   
   

   2. File inclusion directive

   
   
   

   3. Preprocessor directive

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   Preprocessor directive

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33. Property which allows to produce different executable for different platforms in C is called?

1. 1. Conditional compilation

   
   
   

   2. Recursive macros

   
   
   

   3. Selective inclusion

   
   
   

   4. File inclusion

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   Conditional compilation is the preprocessor facility to produce different executable.

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34. Which of the following properties of #define is not true?

1. 1. They obey scope rules

   
   
   

   2. You can use a pointer to #define

   
   
   

   3. #define can be made externally available

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   #define can be made externally available.
   They obey scope rules.
   You can use a pointer to #define.

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35. What will be the output of the following C code?
    

    #include <stdio.h>
        #define MINIMUM 30
        #ifdef(MINIMUM)
        #define MAXIMUM 250
        #endif
        int main()
        {
            printf("%d %d\n", MAXIMUM, MINIMUM);
            return 0;
        }
    

1. 1. Preprocessor error

   
   
   

   2. Garbage value

   
   
   

   3. Compilation Error

   
   
   

   4. 250 30

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   Compilation Error
   

   main.c:3:11: error: macro names must be identifiers
        #ifdef(MINIMUM)
              ^
   main.c: In function ‘main’:
   main.c:8:27: error: ‘MAXIMUM’ undeclared (first use in this function); did you mean ‘MINIMUM’?
            printf("%d %d\n", MAXIMUM, MINIMUM);
                              ^~~~~~~
                              MINIMUM
   main.c:8:27: note: each undeclared identifier is reported only once for each function it appears in
   

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