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C Programming :: Increment-Decrement

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

#include
#include
void main(){
int a,i=4;
a=- -i+- -i+- -5;
printf("%d %d",a,i);
}

Answer: Option A

Explanation :

There is an explanation for this answer and that is - 



'All the expressions in an initializer for an object that has static storage duration shall be constant expressions or string literals.'



More information can be found here. 



https://stackoverflow.com/questions/3025050/error-initializer-element-is-not-constant-when-trying-to-initialize-variable-w



And this limitation is mentioned in these C rules



http://c0x.coding-guidelines.com/index.html



 

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