Unary operator is redundant due to its operand SC-R1064
Anti-pattern
Major
A unary operator is an operator that takes a single operand. However, in this case, the operand supplied to the operator effectively negates or renders the operator redundant. To put it simply, the operand supplied undoes whatever the unary operator accomplishes.
Bad Practice
val b1 = true
val i = 0
val b2 = !(!b1) // Effectively same as `b1`
val j = ~(~i) // Effectively same as `i`
Recommended
val b1 = true
val i = 0
val b2 = b1 // Effectively same as `b1`
val j = i // Effectively same as `i`