Hashtbl.HashedType man page on Cygwin

Hashtbl.HashedType man page on Cygwin

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Hashtbl.HashedType(3)		 OCaml library		 Hashtbl.HashedType(3)

NAME
       Hashtbl.HashedType - The input signature of the functor Hashtbl.Make.

Module type
       Module type   Hashtbl.HashedType

Documentation
       Module type HashedType
	= sig end

       The input signature of the functor Hashtbl.Make .

       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

       -	( (=) , Hashtbl.hash )	for  comparing	objects	 by  structure
       (provided objects do not contain floats)

       -	 ( (fun x y -> compare x y = 0) , Hashtbl.hash ) for comparing
       objects by structure and handling Pervasives.nan correctly

       -	( (==) , Hashtbl.hash )	 for  comparing	 objects  by  physical
       equality (e.g. for mutable or cyclic objects).

OCamldoc			  2013-10-24		 Hashtbl.HashedType(3)

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