Conversation
toAngles(Vec3) never assigned result.z and toAngles(Mat4) skipped it in the gimbal lock branch. Release builds use noinit, so those fields were uninitialized memory and debug and release builds returned different bits for the same input. Found by floaty's cross build digest test. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
treeform
changed the title
This branch has not been deployed
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary
`toAngles(Vec3)` never assigned `result.z` and `toAngles(Mat4)` skipped it in the gimbal lock branch. Release builds use `noinit`, so those fields were uninitialized memory and debug and release builds returned different bits for the same input. Both now set roll to zero explicitly.
Found by floaty's cross build digest test, which runs vmath through `patchFile("stdlib", "math", ...)` on 16 CI configurations and hashes the results. No define or other change to vmath is needed for that, so this PR is now only the bug fix.
Testing
`nim r tests/tests.nim` passes in debug and release, all three layouts, on Nim 2.2.6 and 2.2.12.
🤖 Generated with Claude Code