What are some design patterns for asynchronous programming in C++?
Some common design patterns for asynchronous programming in C++ include the Observer pattern, Future/Promise pattern, and the Reactor pattern.
Can you explain the Future/Promise pattern?
Sure! The Future/Promise pattern allows you to write asynchronous code that can return a value in the future. A Promise represents a value that may not be available yet, while a Future is used to retrieve that value once it's ready.
How does the Observer pattern work in this context?
In the Observer pattern, an object (the subject) maintains a list of dependents (observers) and notifies them of state changes, which is useful for handling events in asynchronous programming.
Are there any libraries in C++ that support these patterns?
Yes, libraries like Boost.Asio and C++17's std::async provide support for asynchronous programming and can help implement these design patterns.
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