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UnreachableCode -- Check for Unreachable Code

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Description

Checks for unreachable code.

For example, UnreachableCode checks whether a loop body is never executed. That is, UnreachableCode detects situations where the repeat condition of a while or for loop always evaluates to false. The body of such a loop will never execute.

Also, UnreachableCode checks whether a statement is unreachable. That is, UnreachableCode detects situations where a statement can never be executed.

Incorrect

 int count(int limit) {
   if (limit >= 0) {
      ...
   } else {
     for (int i = 0; i < limit; i++) {
       ...
     }
   }
 }

Or

 int* arr = new int[size];
 if (arr == 0) {
    return;
 }

See Also

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