This is a plain C array initialization. For some reason the author is initializing a one-element array of int. The syntax is a little more obvious when initializing an array with more than one element, e.g.
Code:
int myThreeElementArray[3] = {1,2,3};
will initialize an array of 3 ints with values 1,2,3. Since the right-hand-side contains explicit values, you could also omit the size and get the same result with
Code:
int myThreeElementArray[] = {1,2,3};
On the other hand, if you omit the explicit initializer, you'd have to specify the size.