C not reading an if statement inside a while loop

[CakesCakesCakes]

I'm trying to answer this question: Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be:

1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ...

By considering the terms in the Fibonacci sequence whose values do not exceed four million, find the sum of the even-valued terms.

 

I made this program to solve the problem: 

#include <stdio.h>int main (void){        int fib1, fib2, fib3;        fib1 = 1;        fib2 = 2;        int sum = 0;        while (fib3 < 4000000)        {                fib3 = fib1 +fib2;                fib1 = fib2;                fib2 = fib3;                if (fib3 % 2 == 0)                        sum += fib3;        }        printf("%i\n", sum);}

The problem is that it just prints 0 every time.   It doesn't even run through the if statement, and if i put a printf in the while loop it doesn't execute it.  What is my problem?

[79wjd]

Initialize fib3=0

[itsmyjobtoknow]

You didn't initialize fib3

 

Edit...got ninja'd

[CakesCakesCakes]

Initialize fib3=0

I feel like an idiot, thanks.  I'm new to C, and I started off with Java.  Would this work in Java, or am I just a total idiot?

 

Edit: Never mind I see why it doesn't work.  It doesn't go through the while loop at all because fib3 doesn't equal anything, so it doesn't meet the condition, where as in Java it would be automatically initialized to 0.