Unused Assigned Variables High

Your code includes a dead store, where a variable is assigned a value but never used afterward. Dead stores can clutter the codebase and obscure the program's logic, leading to potential inefficiencies. Consider removing the assignment or re-evaluating the variable's usage to ensure optimal code organization and performance. Identifying and eliminating dead stores improves code readability and maintainability.

Detector ID

c/unused-assigned-variables@v1.0

Category

Security

Common Weakness Enumeration (CWE)

CWE-563

Tags

-

1#include <stdio.h>
2
3int unusedAssignedVariablesNonCompliant(int y) {
4  int x = 0;
5  // Noncompliant: dead store
6  x = 100; 
7  x = 200;
8  return x + y;
9}

1#include <stdio.h>
2
3int unusedAssignedVariablesCompliant(int y) {
4  // Compliant: no unnecessary assignment
5  int x = 200; 
6  return x + y;
7}