添加右值引用相关测试代码

test/src/cpp11/CMakeLists.txt

@@ -3,6 +3,7 @@ project(cpp11)
 
 message("current dir"  ${CMAKE_CURRENT_SOURCE_DIR})
 
+# set(CMAKE_CXX_FLAGS   "-fno-elide-constructors")
 aux_source_directory(. SOURCE)
 message(info ${SOURCE})
 add_executable(cpp11 ${SOURCE} )

test/src/cpp11/cpp11_test.cpp

@@ -7,7 +7,7 @@ using namespace std;
 int main(){
     std::cout<<"test start"<<endl;
     try{
-        TestConditionVariable(); 
+        TestRValue();
     }catch( std::exception  e){
         std::cout<<"exception"<<e.what();
     }

test/src/cpp11/thread_usage.cpp

@@ -92,10 +92,52 @@ int TestConditionVariable() {
     for (int i = 0; i < 10; ++i)
         threads[i] = std::thread(do_print_id, i);
     std::cout << "10 threads ready to race...\n";
-    go();
+
     go();
 
     for (auto & th:threads)
         th.join();
     return 0;
 }
+
+class TestClass
+{
+public:
+    TestClass() : num(new int(0))
+    {
+        std::cout << "construct!" << std::endl;
+    }
+    //拷贝构造函数
+    TestClass(const TestClass &d) : num(new int(*d.num))
+    {
+        std::cout << "copy construct!" << std::endl;
+    }
+    ~TestClass()
+    {
+        std::cout << "class destruct!" << std::endl;
+    }
+
+private:
+    int *num;
+};
+TestClass get_demo()
+{
+    return TestClass();
+}
+int TestOptiomization()
+{
+    TestClass a = get_demo();
+    return 0;
+}
+int TestRValue()
+{
+    std::string str = "Hello";
+    std::vector<std::string> v;
+    //调用常规的拷贝构造函数，新建字符数组，拷贝数据
+    v.push_back(str);
+    std::cout << "After copy, str is \"" << str << "\"\n";
+    //调用移动构造函数，掏空str，掏空后，最好不要使用str
+    v.push_back(std::move(str));
+    std::cout << "After move, str is \"" << str << "\"\n";
+    std::cout << "The contents of the vector are \"" << v[0];
+}

test/src/cpp11/thread_usage.h

@@ -1,4 +1,5 @@
-#include <thread>
+#pragma once
+
 #include <cstdint>
 #include <iostream>
 #include <functional>
@@ -6,8 +7,11 @@
 #include <thread>
 #include <chrono>
 #include <cstdlib>
+#include <vector>
 
 void TestPromiseFutureBefore();
 void TestThreadDetach();
 void TestLockGuard();
-int TestConditionVariable();
+int TestConditionVariable();
+int TestOptiomization();
+int TestRValue();

test/src/cpp11/threadpool.cpp

@@ -1,17 +1,16 @@
 #include "threadpool.h"
 // 参考于https://www.cnblogs.com/bigosprite/p/11071462.html
 namespace general{
-    void work(general::CThreadPool *pool)
-    {
-    }
+
     CThreadPool::CThreadPool(int num)
     {
         this->mThreadCnt = num;
+        mThreads.reserve(num);
         for(int i = 0;i < num;i++){
-            std::thread *t = new std::thread(general::work,this);
-            this->mThreads.push_back(t);
+            mThreads.emplace_back(new std::thread(&ThreadPool::Process, this, i));
         }
     }
+
     int CThreadPool::AddTask(Task *t){
         if ( nullptr == t){
             return -1;
@@ -53,14 +52,15 @@ namespace general{
     bool CThreadPool::Started(){
         return this->mStarted;
     }
-    CThreadPool::~CThreadPool(){
+
+        CThreadPool::~CThreadPool(){
         if(this->mStarted){
             for (size_t i = 0; i != this->mThreads.size(); ++i)
             {
-                // if (mThreads[i].joinable())
-                // {
-                //     mThreads[i].join();
-                // }
+                if (mThreads[i]->joinable())
+                {
+                    mThreads[i]->join();
+                }
             }
         }
     }