fzenity: fix dead store #5134
Merged
fzenity: fix dead store #5134
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
As caught by the Clang Static Analyzer:
$ make clean && NO_EXTRA_CFLAGS="yes" scan-build --status-bugs make -C src/fzenity
[...]
main.c:77:10: warning: Value stored to 'ptr' is never read [deadcode.DeadStores]
return ptr++;
^~~~~
1 warning generated.
[...]
scan-build: Analysis run complete.
scan-build: 1 bug found.
The above increment is a no-op, as it is equivalent to
`return ptr; ptr++;`.
For it to make any difference, the prefix increment operator would have
to be used in place of the postfix one:
return ++ptr;
Which would be equivalent to `++ptr; return ptr;`.
But in order to fix the warning (and CI) while avoiding to change the
current behavior, just remove the operator instead.
Added on commit 1cdfa6f ("more on firecfg --guide: fzenity",
2022-04-25).
677ed74 to
bba57f4
Compare
|
CI checks should be fixed now. |
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Outdated suggestions cannot be applied.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.
As caught by the Clang Static Analyzer:
The above increment is a no-op, as it is equivalent to
return ptr; ptr++;.For it to make any difference, the prefix increment operator would have
to be used in place of the postfix one:
Which would be equivalent to
++ptr; return ptr;.But in order to fix the warning (and CI) while avoiding to change the
current behavior, just remove the operator instead.
Added on commit 1cdfa6f ("more on firecfg --guide: fzenity",
2022-04-25).