Module Feat

module Enum : sig ... end

This module offers a concrete data type 'a enum of enumerations of elements of type 'a. Suppose that every element of type 'a is implicitly assigned a certain size. Then, an enumeration is a function of an integer s to the (implicit, finite) sequence of all elements whose size is s.

module IFSeq : sig ... end

This module provides an abstract data type of implicit, finite sequences. An implicit sequence is not explicitly represented in memory as an actual sequence of elements: instead, it is described by a data structure which contains enough information to produce an arbitrary element upon request. This design decision imposes some constraints on the operations that can be efficiently supported: for instance, filter is not supported.

module Num : sig ... end

This module implements a small set of operations on big integers.