How do I implement co_await, co_yield, co_return?

In C++, the keywords co_await, co_yield, and co_return are used to create coroutines, which simplify asynchronous programming tasks. Coroutines allow functions to be paused and resumed, enabling more readable code when dealing with concurrent operations.

Example of co_await, co_yield, and co_return


        #include 
        #include 
        #include 
        #include 

        // A simple coroutine type
        struct Coroutine {
            struct promise_type {
                Coroutine get_return_object() { return {}; }
                std::suspend_always yield_value(int value) {
                    std::cout << "Yielded: " << value << std::endl;
                    return {};
                }
                std::suspend_always await_transform(int delay) {
                    // simulate async await
                    std::this_thread::sleep_for(std::chrono::milliseconds(delay));
                    return {};
                }
                void return_void() {}
            };
        };

        Coroutine example() {
            // Using co_await
            co_await 2000; // Simulate waiting
            co_yield 1; // Pause and yield
            co_yield 2; // Pause and yield
            co_return; // End coroutine
        }

        int main() {
            auto co = example();
            // Simulate running the coroutine
            co; // Start the coroutine
        }

C++ coroutines co_await co_yield co_return asynchronous programming coroutine example

How do I implement co_await, co_yield, co_return?

Example of co_await, co_yield, and co_return

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How do I implement co_await, co_yield, co_return?

Example of co_await, co_yield, and co_return

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