基于static 智能指针的,其使用了非OO的friend 技术,不能扩展到其他纯OO的语言里面。 但是其可以写成模板类,被singleton 的模型继承,如 http://www.cppblog.com/dyj057/archive/2005/09/20/346.aspx . Note: 这里面用到好多static 变量的一些用法,总结一下: 1. 类的static 变量定义在类的外面(cpp) 文件里,...
开发者ID:srgank,项目名称:sterna_x,代码行数:26,代码来源:analitikaartiklilista.cpp 示例5: main ▲点赞 1▼ intmain(){Singleton* instance =Singleton::get();std::cout<< instance->showData() <<std::endl;return0; } 开发者ID:oswego,项目名称:DesignPattern,代码行数:7,代码来源:SingletonDesignP...
Log();//ctor is hiddenLog(Logconst&);//copy ctor is hiddenstaticLog*m_pInstance;staticstd::list<std::string>m_data; };//in log.cpp we have to addLog* Log::m_pInstance = NULL; Instance()只在第一次被调用时为m_pInstance分配内存并初始化. 嗯, 看上去所有的问题都解决了, 初始化顺...
Singleton design patternDefine a private static attribute in the "single instance" class Define a public static accessor function in the class Do "lazy initialization" (creation on demand) in the accessor function Define all constructors to be protected or private Clients may only use the accessor...
Design Pattern之Singleton模式 <转贴-To Me> 概述 Singleton模式 五种实现 1.简单实现 1 publicsealedclassSingleton 2 { 3 staticSingleton instance=null; 4 5 Singleton() 6 { 7 } 8 9 publicstaticSingleton Instance 10 { 11 get 12 { 13 if(instance==null)...
Facade Factory Pattern Factory-Method-Pattern Flyweight Image Interpreter Iterator Mediator Memento Observer-Pattern Observer-event Prototype Proxy Singleton README.md Singleton2.cpp Singletonc11.cpp State Strategy Template-Pattern Visitor README.mdBreadcrumbs Cpp-Design-Patterns /Singleton / README.md Latest...
22 design patterns and 8 principles explained in depth 406 well-structured, easy to read, jargon-free pages 228 clear and helpful illustrations and diagrams An archive with code examples in 4 languages All devices supported: EPUB/MOBI/PDF formats Learn more...Code examples Java Singleton in Java...
// Singleton_Main.cpp 文件 #include "SingletonPattern/Singleton_Main.h" #include "Inventory.h" // Sets default values ASingleton_Main::ASingleton_Main() { // Set this actor to call Tick() every frame. You can turn this off to improve performance if you don't need it. ...
DesignPatterns/Singleton at master · pezy/DesignPatterns · GitHub Static local variables - cppreference.com C++ 单例模式总结与剖析 - 行者孙 - 博客园 (cnblogs.com) I.2: Avoid non-const global variables (isocpp.github.io) I.3: Avoid singletons (isocpp.github.io) ...
由于在main函数之前初始化,所以没有线程安全的问题,但是潜在问题在于no-local static对象(函数外的static对象)在不同编译单元(可理解为cpp文件和其包含的头文件)中的初始化顺序是未定义的。如果在初始化完成之前调用Instance()方法会返回一个未定义的实例。