4 ms·
Does any implementation updated in the last 25 years use CDR coding??
by bjoli 4y ago
Does any implementation updated in the last 25 years use CDR coding??
- gumby 4y agoI don't know -- most implementations on popular architectures only have two (low order) bits for tagging due to alignment issues, so there may not be room. Might be easier in the case of a RISC V with the tagging extension. Also it would be possible to implement such an approach in a C++ list container where you don't need boxing (the content type is known).
- hayley-patton 4y agoOn a 64-bit machine where everything is aligned to two words (like SBCL), you get 4 bits for tags.