Inspecting C's qsort Through AnimationThe C standard library includes a qsort() function for sorting arbitrary buffers given a comparator function. The name comes from its original Unix implementation, “quicker sort,” a variation of the well-known quicksort algorithm. The C standard doesn’t specify an algorithm, except to say that it may be unstable (C99 §7.20.5.2¶4) — equal elements have an unspecified order. As such, different C lib
