clrhash (ANSI and GNU Common Lisp Document)

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#### 18.2.13 clrhash [Function]

`clrhash` hash-table ⇒ hash-table

#### 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.