/// Checked integer division without remainder. Computes `self / rhs`,/// returning `None` if `rhs == 0` or if division remainder is not zero.pubconstfnchecked_exact_div(self,rhs:Self) ->Option<Self>{ ...}/// Integer division without remainder. Computes `self / rhs`,/// panics if `rhs == 0` or if division remainder is not zero.pubconstfnexact_div(self,rhs:Self) ->Self{ ...}/// Integer division without remainder./// Unchecked version of `exact_div`.pubunsafeconstfnunchecked_exact_div(self,rhs:Self) ->Self{ ...}