This ocaml library consists of a set of modules which implement automatically resizing (i.e. reallocating) data structures that consume a contiguous part of memory.

this allows appending and removing of elements to/from arrays (both boxed and unboxed), strings (i.e. buffers), bit strings and weak arrays while still maintaining fast constant-time access to elements.

there are also functors that allow the generation of similar modules which use different reallocation strategies.