Wiki example for binary search incomplete?

[fingolfin]

The Wiki lists as last example an implementation of binary search. However, the value delta there is never used, and the program fails to abort when delta is less than 0 (i.e. it needlessly degenerates to the worst case of a linear search). While the fix seems obvious, I have no way to test the result of any modification, so instead of directly trying to edit your wiki, I thought it best to report this here.