Finally, it's passing a pointer to a pointer to a double by reference. If you think in terms of typedefs like this you'll understand the proper ordering of the & and * plus what it means. *& signifies the receiving the pointer by reference. It means it is an alias for the passing parameter.
Full Definition of PRORATE. transitive verb. : to divide, distribute, or assess proportionately. intransitive verb. : to make a pro rata distribution.ull Definition of PRORATE. transitive verb. : to divide, distribute, or assess proportionately. intransitive verb. : to make a pro rata distribution.
This is called a prorated charge. Proration means dividing something proportionally, usually based on a unit of time. For example, if a service costs $200 a month but you only used it for half a month, the charge would be $100. You pay the service provider for the amount of time the service was used compared to the cost for the entire time.