# V1021\. The variable is assigned the same value on several loop iterations\.

The analyzer has detected a loop with a suspicious assignment operation, which could make that loop infinite\.

Consider the following example:

```cpp
static void f(Node *n)
{
  for (Node *it = n; it != nullptr; it = n->next)
  ....
}
```

This is a typical construct used to traverse lists\. When 'n' is not modified, this loop will either never iterate or will iterate infinitely\.

Fixed code:

```cpp
static void f(Node *n)
{
  for (Node *it = n; it != nullptr; it = it->next)
  ....
}
```