5.2 Extensions to the Dylan library

5.2.8 The table protocol

The following functions in the Dylan library are extended. Note that the hash IDs for tables are always instances of <integer>.

merge-hash-codes

Function

merge-hash-codes id1 state1 id2 state2 #key ordered? => merged-id merged-state

: Returns a hash code created from the merging of two argument hash codes. The id arguments are hash IDs, and the state arguments are hash states (instances of <object>). The ordered? argument is an instance of <boolean>. The returned merged values are instances of <integer> and <object>, as determined by the name of each argument.

object-hash

Function

object-hash object => hash-id hash-state

: The hash function for the equivalence predicate ==. The return values are of the same types as the return values of merge-hash-codes.