# V3034\. Consider inspecting the expression\. Probably the '\!\=' should be used here\.

The analyzer has detected a potential error\. The '\!\=' or '\=\= \!' operator should be probably used instead of the '\=\!' operator\. Such errors most often occur through misprints\.

Consider an example of incorrect code:

```cpp
bool a, b;
...
if (a =! b)
{
  ...
}
```

It's most probably that this code should check that the 'a' variable is not equal to 'b'\. If so, the correct code should look like follows:

```cpp
if (a != b)
{
  ...
}
```

The analyzer accounts for formatting in the expression\. That's why if it is exactly assignment you need to perform \- not comparison \- you should specify it through parentheses or blanks\. The following code samples are considered correct:

```cpp
if (a = !b)
  ...
if (a=(!b))
  ...
```