# V534. It is possible that a wrong variable is compared inside the 'for' operator. Consider inspecting '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:

    for (size_t i = 0; i != 5; i++)
      for (size_t 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:

    for (size_t i = 0; i != 5; i++)
      for (size_t j = 0; j != 5; j++)
        A[i][j] = 0;

This diagnostic is classified as:

CWE-691 CERT-MSC01-C

You can look at examples of errors detected by the V534 diagnostic.