ABCL v1.8.0 | Hash table size is set to 11 despite :size being set to lower number

Hello,

This is to report a possible bug in ABCL v1.8.0.

When I create a new hash table and pass an initial size of a number lower then 11 (e.g., 7), the function hash-table-size reports the size as 11 instead of the provided size.

$ abcl --noinit

Armed Bear Common Lisp 1.8.0

Java 18 Homebrew

OpenJDK 64-Bit Server VM

Low-level initialization completed in 0.092 seconds.

Startup completed in 0.471 seconds.

Type ":help" for a list of available commands.

CL-USER(1): (defparameter *hash-table* (make-hash-table :size 7))

*HASH-TABLE*

CL-USER(2): (hash-table-size *hash-table*)

11

CL-USER(3):

As long as :size is 11 or higher, then hash-table-size reports the expected size.

CL-USER(3): (defparameter *larger-hash-table* (make-hash-table :size 42))

*LARGER-HASH-TABLE*

CL-USER(4): (hash-table-size *larger-hash-table*)

42

Is this a known issue?

Reference: https://github.com/jeko2000/synchronized-hash-tables/issues/3

--

Thank you,

Johnny Ruiz