#ifdef something

int some=0;

#endif

main()

{

int thing = 0;

printf("%d %d\n", some ,thing);

}

Answer Posted / susie

Answer :

Compiler error : undefined symbol some

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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