Create exercise-13.cpp

submission/exercise-13/minjiJun/exercise-13.cpp

@@ -0,0 +1,92 @@
+#include <memory>
+#include <iostream>
+#include <utility>
+
+int default_constructor_count = 0;
+int copy_constructor_count = 0;
+int move_constructor_count = 0;
+int copy_assignment_count = 0;
+int move_assignment_count = 0;
+int desctructor_count = 0;
+
+class MyApplication {
+    public:
+        MyApplication() {
+            std::cout << __PRETTY_FUNCTION__ << '\n';
+            default_constructor_count += 1;
+        }
+
+        MyApplication(const MyApplication&) {
+            std::cout << __PRETTY_FUNCTION__ << '\n';
+            copy_constructor_count += 1;
+        }
+
+        MyApplication(MyApplication&&) noexcept {
+            std::cout << __PRETTY_FUNCTION__ << '\n';
+            copy_assignment_count += 1;
+        }
+
+        MyApplication& operator=(const MyApplication&) {
+            std::cout << __PRETTY_FUNCTION__ << '\n';
+            move_constructor_count += 1;
+            return *this;
+        }
+
+        MyApplication& operator=(MyApplication&&) noexcept  {
+            std::cout << __PRETTY_FUNCTION__ << '\n';
+            move_assignment_count += 1;
+            return *this;
+        }
+
+        ~MyApplication() {
+            std::cout << __PRETTY_FUNCTION__ << '\n';
+            desctructor_count += 1;
+        }
+};
+
+void TestUniquePtr() {
+    // MyApplication 생성
+    auto p = std::make_unique<MyApplication>();
+
+    // MyApplication 이동
+    auto p2 = std::move(p);
+}
+
+void TestSharedPtr() {
+    // MyApplication 생성
+    auto p = std::make_shared<MyApplication>();
+
+    // ?
+    auto p2 = p;
+
+    // p2 초기화
+    p2.reset();
+
+  // ?
+    std::weak_ptr<MyApplication> weak_p = p;
+
+    auto lock = weak_p.lock();
+    if (lock) {
+        std::cout << "Acquired ownership\n";
+    }
+}
+
+int main() {
+    TestUniquePtr();
+    std::cout << "기본 생성자 호출 횟수: " << default_constructor_count << "\n";
+    std::cout << "복사 생성자 호출 횟수: " << copy_constructor_count << "\n";
+    std::cout << "이동 생성자 호출 횟수: " << move_constructor_count << "\n";
+    std::cout << "복사 대입 연산자 호출 횟수: " << copy_assignment_count << "\n";
+    std::cout << "이동 대입 연산자 호출 횟수: " << move_assignment_count << "\n";
+    std::cout << "소멸자 호출 횟수: " << desctructor_count << "\n";
+
+    TestSharedPtr();
+    std::cout << "기본 생성자 호출 횟수: " << default_constructor_count << "\n";
+    std::cout << "복사 생성자 호출 횟수: " << copy_constructor_count << "\n";
+    std::cout << "이동 생성자 호출 횟수: " << move_constructor_count << "\n";
+    std::cout << "복사 대입 연산자 호출 횟수: " << copy_assignment_count << "\n";
+    std::cout << "이동 대입 연산자 호출 횟수: " << move_assignment_count << "\n";
+    std::cout << "소멸자 호출 횟수: " << desctructor_count << "\n";
+
+    return 0;
+}