Linux' red-black tree, in C:
(C) 1999 Andrea Arcangeli <andrea@suse.de>
(C) 2002 David Woodhouse <dwmw2@infradead.org>
(C) 2012 Michel Lespinasse <walken@google.com>
rougenoir implementation, in Rust:
(C) 2025 Firas al-Khalil <firasalkhalil@gmail.com>