# V3015\. It is likely that a wrong variable is being compared inside the 'for' operator\. Consider reviewing 'X'\.

The analyzer detected a potential error: a variable referring to an outer loop is used in the condition of the 'for' operator\. 

This is the simplest form of this error:

```cpp
for (int i = 0; i < 5; i++)
  for (int j = 0; i < 5; j++)
    A[i][j] = 0;
```

It is the comparison 'i < 5' that is performed instead of 'j < 5' in the inner loop\. Such an error might be not so visible in a real application\. This is the correct code:

```cpp
for (int i = 0; i < 5; i++)
  for (int j = 0; j < 5; j++)
    A[i][j] = 0;
```