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C Programming :: C Preprocessor

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9. What will be output of the following "c" code?

#ifdef something
int some=0;
void main()
int thing = 0;
printf("%d %d\n", some ,thing);

Answer: Option C

Explanation :

This is a very simple example for conditional compilation.
The name something is not already known to the compiler making the declaration int some = 0; effectively removed from the source code.

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