Oct 012013
Interview Question…
I have following code snippets…
Code snippet 1
int arr[1000000]; int main() { return arr[0]; }
Code snippet 2:
int arr[1000000] = {10}; int main() { return arr[0]; }
After compilation of the above snippets the output exe differs in size. The second snippet’s executable is much bigger in size than the first snippet’s executable. See screenshot…
Why?
And only for global variables???
Yes, only with global variables, from what I’ve seen.
Is it because it embed 1000000 X 4 byte long array with initial value as 10 in exe itself? That’s awful!!