$ ./lisp0/target/release/lisp0 src/test-lt-gt.l0 [true] [true] [nil] [nil] [nil] [nil] [true] [true] [nil] [true] [nil] [true]

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   mcc (mcc@mastodon.social)'s status on Friday, 11-Apr-2025 03:06:43 JST mcc

   in reply to

   Anyway, I like testing things before I use them, so after implementing my "if" and "while" I decide to write a simple Fizzbuzz program. This causes me to immediately realize—

   I FORGOT TO IMPLEMENT > AND <

   I just forgot!! Fortunately I *did* include bit arithmetic ops, so I implement <, >, <=, >= in userland as well, by testing bit (1<<63) as a proxy for 2's compliment negative. This is actually a little worrisome. I'm not sure if this code truly "works" or if I'm just leveraging UB in Rust.