Singletons

2023-12-02 00:08
文章标签 singletons

本文主要是介绍Singletons,希望对大家解决编程问题提供一定的参考价值,需要的开发者们随着小编来一起学习吧!

构造函数是private,客户端无法产生Singletons,但Instance()使得其编译期就得以实施
class Singleton{
public :
static Singleton * Instance(){
if(!pInstance_)
pInstance_=new Singleton;
return pInstance_;
}
}
private:
Singleton();
Singleton(const Singleton&);
Singleton &operator=(const Singleton&);
~Singleton& operator =(const Singleton&);
static Singleton *pInstance_;
};
防止Singleton对象所访问的资源泄露,采用如下机制
Singleto

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