update

.gitignore

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+/build
+/.cache

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.10)
+
+project(ZtAsyncio CXX)
+
+set(CMAKE_CXX_STANDARD 26
+    CMAKE_CXX_STANDARD_REQUIRED ON
+    CMAKE_CXX_EXTENSIONS OFF)
+
+include_directories(
+    ${CMAKE_CURRENT_SOURCE_DIR}/include
+)
+
+add_executable(test1
+    src/test1.cpp
+)

include/asyncio.hpp

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+#include <coroutine>
+#include <future>
+namespace zt{
+    template<class T>
+    struct Task{
+        struct promise_type;
+        struct promise_type{
+            std::promise<T> promise_;
+            void return_value(T value){promise_.set_value(value);}
+            auto initial_suspend(){
+                return std::suspend_always{};
+            }
+            auto final_suspend()noexcept{
+                return std::suspend_always{};
+            }
+            auto get_return_object(){
+                return Task<T>{};
+            }
+            void unhandled_exception(){
+                return;
+            }
+        };
+    };
+}

src/test1.cpp

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+#include <future>
+#include <iostream>
+#include <ostream>
+#include <coroutine>
+#include "asyncio.hpp"
+
+zt::Task<int> return0(){
+    std::println(std::cout,"return 0;");
+    co_return 0;
+}
+
+int main(){
+    auto ret =  return0();
+    ret.promise_type
+}