Ticket Maps--Anthony Williams
Simple and efficient.
Ticket Maps
by Anthony Williams
From the article:
It has been an increasingly common scenario that I've encountered where you have some ID that's monotonically increasing, such as a subscription or connection index, or user ID, and you need your C++ program to hold some data that's associated with that ID value. The program can then pass round the ID, and use that ID to access the associated data at a later point...