Next: iklib records rcd, Previous: iklib records comparison, Up: iklib records [Index]
A record–type’s hash function is a function accepting as single argument an instance of the record–type; the return value is a non–negative fixnum representing the hash value of the record.
When a record–type does not have a custom hash function: we can always
use the core primitive record-hash, record-hash.
Select the procedure hash-func as hash function for records of
type rtd; if hash-func is #f, instances of type
rtd make use of the built–in Scheme objects hash function.
Return the function set as custom hash function for records of type
rtd; return #f if rtd has no custom hash function.
Return #f or the function being the custom record hash function
for the record record.