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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
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answer
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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
…