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A software design pattern in which an object, called the subject, maintains a list of its dependents, called observers, and notifies them automatically of any state changes, usually by calling one of their methods.

6 votes
1 answer
2k views

Observable template in modern C++

I'm trying to create a modern template class for a generic observable: typedef int SUBSCRIPTION_ID; template<typename EventType, typename Event> class Subject2 { typedef struct …
Matias Suarez's user avatar