c preprocessor questions

C preprocessor directive Test

1. Which of the following are C preprocessors?

a) #ifdef
b) #define
c) #endif
d) all of the mentioned

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2.C preprocessor ?

a. Take care of conditional compilationg
b. Take care of include files
c. act before compilation
d. All of above

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3. A preprocessor command ?

a. need not start on a new line
b. need not start on the first column
c. comes before the first executable statement
d. has # as the first character

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4. What is the output of the following program ?

#include< stdio.h > int main() { char ptr; char arr[10]={1,2,3,4,5,6,9,8}; ptr=(arr+1)[5]; printf(“%d”, ptr); return 0;

a. 4
b. 6
c. 5
d. Error

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5. An Array elements always stored in ___________ memory location ?

a. Sequential
b. Sequential and random
c. Random
d. Non of these

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6. What will be print after execution of the program?

#include< stdio.h > int main() { int num[10]={4,5,6,7,8}; printf( “%d”,num[5]); return 0; }

a. Garbage value
b. 0
c. 6
d. 8

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