The use of parentheses, even those not required to enforce a desired order of operations, can clarify the intent behind a piece of code. However,
redundant pairs of parentheses could be misleading and should be removed.
Noncompliant code example
 CHECK (SY-SUBRC NE 0). "compliant even if ignored by compiler
 IF ((SY-SUBRC EQ 0)). "Noncompliant
Compliant solution
 CHECK (SY-SUBRC NE 0).
 IF (SY-SUBRC EQ 0).