clrhash (Function)

Syntax:

Arguments and Values:

hash-table—a hash table.

Description:

Removes all entries from hash-table, and then returns that empty hash table.

Examples:

 (setq table (make-hash-table)) → #<HASH-TABLE EQL 0/120 32004073>
 (dotimes (i 100) (setf (gethash i table) (format nil "~R" i))) → NIL
 (hash-table-count table) → 100
 (gethash 57 table) → "fifty-seven", true
 (clrhash table) → #<HASH-TABLE EQL 0/120 32004073>
 (hash-table-count table) → 0
 (gethash 57 table) → NIL, false

Side Effects:

The hash-table is modified.