以下两个语句在语义上是否相同？(Are the following two statements semantically same?)

以下两个语句在语义上是否相同？(Are the following two statements semantically same?)

以下两个语句在语义上是否相同？

＃1 person p("Rahul", 20);

＃2 person const &p = person("Rahul", 20);

编辑：

对不起，我的意思是询问以下两者在语义上是否相同：

＃1 person const p("Rahul", 20);

＃2 person const &p = person("Rahul", 20);

Are the following two statements semantically same?

#1 person p("Rahul", 20);

#2 person const &p = person("Rahul", 20);

EDIT:

Sorry, I meant to ask whether the following two are semantically same:

#1 person const p("Rahul", 20);

#2 person const &p = person("Rahul", 20);

最满意答案

他们不是。 然而，这种区别仅受第二种情况需要C ++ 03可访问的拷贝构造函数的影响（即使拷贝构造函数调用实际上没有完成）

// works with #1 fails with #2 struct f1 { f1(string, int); private: f1(f1 const&); };

They are not. However, the difference are affected only by the fact that the second case needs a copy constructor to be accessible in C++03 (even if the copy constructor call is not actually done)

// works with #1 fails with #2 struct f1 { f1(string, int); private: f1(f1 const&); };