Work around -Werror=type-limits under gcc 10.2 #8092
Merged
Conversation
This file contains 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
This is an error when tag is greater than 128 under gcc 10.2: if (tag < 128) return *ptr == tag; It's an error even though the comparison occurs in a branch of code we know won't be taken. See https://godbolt.org/z/1eaP86 This works around the problem by clipping tag to within bounds.
dlj-NaN
suggested changes
Nov 26, 2020
"tag % 128" becomes "static_cast<char>(tag)"
dlj-NaN
approved these changes
Nov 26, 2020
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
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Outdated suggestions cannot be applied.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 an error when tag is greater than 128 under gcc 10.2: if (tag < 128) return *ptr == tag;
It's an error even though the comparison occurs in a branch of code we know won't be taken. See https://godbolt.org/z/1eaP86
This works around the problem by clipping tag to within bounds.