The variable's value is assigned but never used, making it a dead store.
Extended Description
It is likely that the variable is simply vestigial, but it is also possible that the unused variable points out a bug.
Time of Introduction
Implementation
Common Consequences
Scope
Effect
Other
Technical Impact: Quality degradation
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.
Demonstrative Examples
Example 1
The following code excerpt assigns to the variable r and then
overwrites the value without using it.
(Bad Code)
Example
Language: C
r = getName();
r = getNewBuffer(buf);
Potential Mitigations
Phase: Implementation
Remove unused variables from the code.
Other Notes
This variable's value is not used. After the assignment, the variable is
either assigned another value or goes out of scope.
Description
