what is the output of the given program?main(){#ifndef sanprintf("no");#endifprintf("yes");}
Question
What is the output of the given program?
main(){
#ifndef san
printf("no");
#endif
printf("yes");
}
Solution
The output of the given program will be "yes".
Here's the step by step explanation:
-
The
#ifndefdirective in C is a preprocessor directive that checks if the following symbol has not been defined. Here it checks for 'san'. -
If 'san' has not been defined, the code between
#ifndefand#endifwill be included in the program. In this case, it would print "no". -
However, 'san' is not defined anywhere in the code, so the code inside
#ifndefand#endifis ignored. -
The program then reaches the
printf("yes");statement, which prints "yes".
So, the output of the program is "yes".
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