New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

`abs` should add a case for `(-> Fixnum Nonnegative-Fixnum)` #1310

Open

LiberalArtist opened this issue Feb 15, 2023 · 2 comments

Contributor

LiberalArtist commented Feb 15, 2023

See #1309 for a motivating example.

Contributor

sorawee commented Feb 15, 2023

One thing that should be looked out for is that (most-positive-fixnum) is less than (abs (most-negative-fixnum)) by one.

Sponsor Member

samth commented Feb 15, 2023

Yes, as @sorawee points out this is unfortunately not true:

> (fixnum? (abs (most-negative-fixnum)))
#f

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment