Why is this an issue?
Calling the ! or ~ prefix operator twice does nothing: the second invocation undoes the first. Such mistakes are
typically caused by accidentally double-tapping the key in question without noticing.
Either this is a bug, if the operator was actually meant to be called once, or misleading if done on purpose.
Noncompliant code example
int v1 = 0;
bool v2 = false;
var v3 = !!v1; // Noncompliant
var v4 = ~~v2; // Noncompliant
Compliant solution
int v1 = 0;
bool v2 = false;
var v3 = !v1;
var v4 = ~v2;
