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猫耳堀川雷鼓 2021-03-02 14:16:52 +08:00 committed by GitHub
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3.MovingToModernCpp/item12.md
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@ -46,7 +46,7 @@ public:
void doWork() &&; //只有*this为右值的时候才能被调用 void doWork() &&; //只有*this为右值的时候才能被调用
}; };
… …
Widget makeWidget(); //工厂函数（返回右值） Widget makeWidget(); //工厂函数（返回右值）
Widget w; //普通对象（左值） Widget w; //普通对象（左值）
… …
w.doWork(); //调用被左值引用限定修饰的Widget::doWork版本 w.doWork(); //调用被左值引用限定修饰的Widget::doWork版本