Skip to content
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.

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

Edits and checks for modulus, division, and exponentiation #1792

merged 5 commits into from Jan 2, 2020


Copy link

@iamdefinitelyahuman iamdefinitelyahuman commented Dec 28, 2019

What I did

  • Modify modulus calculations for literals to be consistent with the EVM - closes #1693
  • Explicitly disallow the use of exponentiation on decimal values - closes #1698
  • Add compile-time checks for divide by zero and modulo by zero

How I did it

  • For literal modulus calculations, calculate abs(a) % abs(b) and then return a negative value if a < 0. This is consistent with the results of SMOD.
  • Add ZeroDivisionException to allow raising zero division errors with code highlights
  • various minor edits to vyper/parser/ - mostly raising exceptions

How to verify it

Run the tests. I added more test cases around these behaviors.

Cute Animal Picture


Copy link

@fubuloubu fubuloubu left a comment

Please rebase tho

@fubuloubu fubuloubu merged commit 374456c into vyperlang:master Jan 2, 2020
8 checks passed
@iamdefinitelyahuman iamdefinitelyahuman deleted the arithmetic2 branch Jan 7, 2020
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
None yet
None yet

Successfully merging this pull request may close these issues.

2 participants