shared_ptr.h 智能指针 像一个指针

CMakeLists.txt

@@ -3,4 +3,4 @@ project(MSTL)
 
 set(CMAKE_CXX_STANDARD 14)
 
-add_executable(MSTL main.cpp h/String.h h/List.h h/Singleton.h h/Faction.h)
+add_executable(MSTL main.cpp h/String.h h/List.h h/Singleton.h h/Faction.h h/shared_ptr.h)

cmake-build-debug/.ninja_log

@@ -1,83 +1,7 @@
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cmake-build-debug/Testing/Temporary/LastTest.log

@@ -1,3 +1,3 @@
-Start testing: Sep 28 20:25 CST
+Start testing: Sep 28 20:44 CST
 ----------------------------------------------------------
-End testing: Sep 28 20:25 CST
+End testing: Sep 28 20:44 CST

h/List.h

@@ -96,4 +96,8 @@ public:
         current = current->next;
         return i;
     }
+
+//    LNode<T> operator->(){
+//        return &(operator*());
+//    }
 };

h/shared_ptr.h

@@ -0,0 +1,26 @@
+//
+// Created by dongl on 22-9-28.
+//
+
+#ifndef MSTL_SHARED_PTR_H
+#define MSTL_SHARED_PTR_H
+
+#endif //MSTL_SHARED_PTR_H
+
+/// 智能指针  像一个指针
+template<class T>
+class shared_ptr{
+public:
+    T& operator*() const {
+        return *px;
+    }
+
+    T* operator->() const {
+        return px;
+    }
+
+    shared_ptr(T* p) : px(p) {}
+private:
+    T* px;
+    long* pn;
+};

main.cpp

@@ -2,6 +2,7 @@
 #include "h/List.h"
 #include "h/String.h"
 #include "h/Faction.h"
+#include "h/shared_ptr.h"
 
 int main() {
     List<double> list = *new List<double>;
@@ -13,5 +14,9 @@ int main() {
     std::cout << ++list << std::endl;
     std::cout << ++list << std::endl;
     std::cout << list << std::endl;
+
+    shared_ptr<String> ptr(new String("ptr"));
+    std::cout << ptr->get_c_str() << std::endl;
+
     return 0;
 }