package datalog

  1. Overview
  2. Docs
An in-memory datalog implementation for OCaml

Install 

dune-project
 Dependency

github.com Readme Changelog Edit opam file Versions (8)

Authors

  1. S
    Simon Cruanes

Maintainers

  1. S
    simon.cruanes.2007@m4x.org

Sources

datalog-0.7.tbz
sha256=13ca520bddf4f0c44d1468bc89347be72ec543be58fff29469a0da24956be541
sha512=25d6e9cb5abe8aa1110730d884abb9e51ae78bf681b3f21709efa32359b9cbdd97d9076761c91562580c090cbce12ce159c97533ae5d9d427c24cb329e950793

doc/datalog.unix/Datalog_unix/Make/argument-1-TD/Index/argument-1-Data/index.html

Parameter Index.Data

type t

The type of the hashtable keys.

val equal : t -> t -> bool

The equality predicate used to compare keys.

val hash : t -> int

A hashing function on keys. It must be such that if two keys are equal according to equal, then they have identical hash values as computed by hash. Examples: suitable (equal, hash) pairs for arbitrary key types include

  • ((=), hash) for comparing objects by structure (provided objects do not contain floats)
  • ((fun x y -> compare x y = 0), hash) for comparing objects by structure and handling Stdlib.nan correctly
  • ((==), hash) for comparing objects by physical equality (e.g. for mutable or cyclic objects).