The variable's value is assigned but never used, making it a dead store.
After the assignment, the variable is either assigned another value or goes out of scope. It is likely that the variable is simply vestigial, but it is also possible that the unused variable points out a bug.
cwe_Nature: ChildOf cwe_CWE_ID: 1164 cwe_View_ID: 1000 cwe_Ordinal: Primary
cwe_Nature: ChildOf cwe_CWE_ID: 1164 cwe_View_ID: 699 cwe_Ordinal: Primary
|Other||['Quality Degradation', 'Varies by Context']||This weakness could be an indication of a bug in the program or a deprecated variable that was not removed and is an indication of poor quality. This could lead to further bugs and the introduction of weaknesses.|
Remove unused variables from the code.
The following code excerpt assigns to the variable r and then overwrites the value without using it.
|映射的分类名||ImNode ID||Fit||Mapped Node Name|
|CERT C Secure Coding||MSC00-C||Compile cleanly at high warning levels|
|SEI CERT Perl Coding Standard||MSC01-PL||Imprecise||Detect and remove unused variables|
|Software Fault Patterns||SFP2||Unused Entities|