# V3075. The operation is executed 2 or more times in succession.

The analyzer detected a possible error that has to do with executing operation '!', '~', '-', or '+' two or more times in succession. This error may be caused by a typo. The resulting expression makes no sense and may lead to incorrect behavior.

Consider the following example:

    if (!(( !filter )))
    {
      ....
    }

This error most likely appeared during code refactoring. For example, a part of a complex logical expression was removed while the negation of the whole result wasn't. As a result, we've got an expression with an opposite meaning.

The fixed version of the code may look like this:

    if ( filter )
    {
      ....
    }

or this:

    if ( !filter )
    {
      ....
    }

You can look at examples of errors detected by the V3075 diagnostic.