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Function HASH-TABLE-REHASH-SIZE

Syntax

  • hash-table-rehash-size hash-tablerehash-size

Arguments and Values

  • hash-table - a hash table.
  • rehash-size - a real of type (or (integer 1 *) (float (1.0) *)).

Description

Returns the current rehash size of hash-table, suitable for use in a call to make-hash-table in order to produce a hash table with state corresponding to the current state of the hash-table.

Examples

(defparameter *table* (make-hash-table :size 100 :rehash-size 1.4))

*TABLE*

*table*

#<HASH-TABLE EQL 0/100 2556371>

(hash-table-rehash-size *table*)

1.4

Side Effects

None.

Affected By

None.

Exceptional Situations

Should signal an error of type type-error if hash-table is not a hash table.

See Also

Notes

If the hash table was created with an integer rehash size, the result is an integer, indicating that the rate of growth of the hash-table when rehashed is intended to be additive; otherwise, the result is a float, indicating that the rate of growth of the hash-table when rehashed is intended to be multiplicative. However, this value is only advice to the implementation; the actual amount by which the hash-table will grow upon rehash is implementation-dependent.

\issue{HASH-TABLE-ACCESS:X3J13-MAR-89} \issue{HASH-TABLE-REHASH-SIZE-INTEGER}