reference in C++

最新推荐文章于 2026-01-07 11:46:22 发布

原创最新推荐文章于 2026-01-07 11:46:22 发布 · 617 阅读

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#reference #compiler #access #c++

本文解释了C++中引用的概念，将其比喻为一种特殊的指针，这种指针自动解除引用且必须初始化。文章探讨了引用如何作为指向其他变量的别名，并强调了其在语法上的简洁性。

A reference(&) is like a constant pointer that is automatically dereferenced.
Any reference must be tied to someone else's piece of storage.When u access a reference,
u're accessing that storage.
Thus,the easiest way to think about a reference is as a fancy pointer.The advantage of this
pointer is that u never have to wonder whether it's been initialized(the compiler enforces
it) and how to dereference it(the compiler does it).
Ofcourse,u can do the same thing by passing a pointer,but reference has much cleaner syntax.