Uh oh!
There was an error while loading. Please reload this page.
Sema: allow @ptrCast slice of zero-bit type to slice of non-zero-bit type - #23418
Merged
Conversation
…t type This is actually completely well-defined. The resulting slice always has 0 elements. The only disallowed case is casting *to* a slice of a zero-bit type, because in that case, you cna't figure out how many destination elements to use (and there's *no* valid destination length if the source slice corresponds to more than 0 bits).
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 freeto join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
This is actually completely well-defined. The resulting slice always has 0 elements. The only disallowed case is casting to a slice of a zero-bit type, because in that case, you cna't figure out how many destination elements to use (and there's no valid destination length if the source slice corresponds to more than 0 bits).