Macro & Preprocessor in C

11. What is a preprocessor directive

A. a message from compiler to the programmer
B. a message from programmer to the microprocessor
C. a message from programmer to the preprocessor
D. a message from compiler to the linker

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12. Which of the following are correctly formed #define statements?

A. #define INCH PER FEET 12
B. #define SQR(X) (X *X);
C. #define SQR(X) X*X
D. #define SQR(X) (X*X)

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13. A macro must always be written in capital letters.

A. TRUE
B. May Be
C. FALSE
D. Can't Say

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14. A macro should always be accommodated in a single line.

A. TRUE
B. May Be
C. FALSE
D. Can't Say

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15. After preprocessing when the program is sent for compilation the macros are removed from the expanded source code.

A. TRUE
B. FALSE
C. Can be true or false
D. Can't Say

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16. Macros with arguments are not allowed.

A. TRUE
B. May Be
C. FALSE
D. Can't Say

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17. Nested macros are allowed.

A. TRUE
B. May Be
C. FALSE
D. Can't Say

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18. Tn a macro call the control is passed to the macro.

A. TRUE
B. FALSE
C. May Be
D. Can't Say

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19. All macro substitutions in a program are done?

A. Before compilation of the program.
B. During execution
C. After compilation
D. None of the above

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20. In a program the statement: #include "filename" is replaced by the contents of the file "filename"?

A. Before compilation
B. During execution
C. After Compilation
D. None of the above

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