TachyonSort is the fast constrained unstable sort (implemented in C89 as a product of Eightomic) that has low-footprint implementation (efficient memory usage and small code size), no auxiliary array allocations, no division/modulus/multiplication operators, no recursion and ultra-fast speed (relative to the aforementioned constraints).
The tachyonsort function sorts (in unstable ascending integral order) an elements array of elements_length elements.
The integral type of each element in elements must match the integral type of element.