# V6119\. The result of '&' operator is always '0'\.

The analyzer has detected a bitwise 'AND' \(&\) operation with operands that cause the result to always be zero\. It is possible that an invalid operator or operand is used\.

An example:

```cpp
final int ACCESS_READ = 0b001; 
final int ACCESS_WRITE= 0b010; 
final int adminMask = ACCESS_READ & ACCESS_WRITE;  // <=
```

A developer creates a mask of bit flags \(the 'final' of variables\) to access file operations\. As a result of the bitwise 'AND' operation, all bits in the 'adminMask' variable become equal to 0, and the mask becomes unnecessary\.

The correct way to create a mask is as follows:

```cpp
final int adminMask = ACCESS_READ | ACCESS_WRITE;
```