The Caml Hump: Resumable exceptions in plain OCaml

Resumable exceptions are the strict generalization of regular exceptions, which lets the exception raising form return a value and so the computation may continue. It's the exception handler that decides either to abort the exceptional computation or to resume it with a particular value. We show a conservative and elementary implementation of resumable exceptions in OCaml: the implementation is a self-contained 100% pure OCaml library.