Uniform binary search

Uniform binary search is an optimization of the classic binary search algorithm invented by Donald Knuth and given in Knuth's The Art of Computer Programming. It uses a lookup table to update a single array index, rather than taking the midpoint of an upper and a lower bound on each iteration; therefore, it is optimized for architectures (such as Knuth's MIX) on which


 * a table lookup is generally faster than an addition and a shift, and
 * many searches will be performed on the same array, or on several arrays of the same length

C implementation
The uniform binary search algorithm looks like this, when implemented in C.