## Why is this an issue?

Using the same value on either side of a binary operator is almost always a mistake. In the case of logical operators, it is either a copy/paste
error and therefore a bug, or it is simply wasted code, and should be simplified. In the case of arithmetic operators, having the same value on both
sides of an operator yields predictable results, and should be simplified.

### Noncompliant code example

* always true
IF X = X
PERFORM SECTION1.
END-IF.
* always false
IF X <> X
PERFORM SECTION2.
END-IF.
* if the first one is true, the second one is too
IF X = Y AND X = Y
PERFORM SECTION3.
END-IF.
* if the first one is true, the second one is too
IF X = Y OR X = Y
PERFORM SECTION4.
END-IF.
* always 1
COMPUTE X = Y / Y.
* always 0
COMPUTE X = Y - Y.

### Exceptions

This rule ignores `*`

and `+`

.

## Resources

- S1656 - Implements a check on
`=`

.