Unit srfi-69 (historical revision 10510)

You are looking at historical revision 10510 of this page. It may differ significantly from its current revision.

Unit srfi-69

CHICKEN implements SRFI-69 (hash tables). For more information, see SRFI-69.

A setter for hash-table-ref is defined, so

(set! (hash-table-ref HT KEY) VAL)

is equivalent to

(hash-table-set! HT KEY VAL)

As an extension to SRFI-69, hash-table-update! and hash-table-update!/default return the new value (after applying the update procedure).

[procedure] (hash-table-remove! HASHTABLE PROC)

Calls PROC for all entries in HASHTABLE with the key and value of each entry. If PROC returns true, then that entry is removed.