C ++引用类型的参数传递和C＃的裁判之间的区别？ [英] Difference between C++ reference type argument passing and C#'s ref?

问题描述

我一直以为他们是同样的事情，但有人指出我没法回答，这种说法并不完全正确的一个

编辑：这里就是我说的，我得到的评论。
EDIT2：
什么是C ++的区别：

 市民：无效美孚（INT&安培;巴）; 
  

和C＃的

 公共无效美孚（REF INT吧）{
 
} 
  

解决方案

在C＃中，有原始类型（整型，结构等）和引用类型（对象）。这些内置于语言。在C ++中，你必须要明确的。下面是一组，指的是在C＃和C对象的等效方法++基于他们是否是引用类型或原语，以及是否你使用REF：

  C＃类型| C ++类型
 ---------------------------- + --------- 
为基本型，没有裁判|常规参数传递
引用类型，没有裁判|指针（*）
为基本型，与文献|参考（安培）
引用类型，与文献|一个指针引用（安培; *）
  

I always thought they were about the same thing but someone pointed me out in one of my answers that such ain't quite true.

Edit: Here is what I said and the comment I got. Edit2: What's the difference between C++'s:

public: void foo(int& bar);

and C#'s

public void foo(ref int bar){

}

解决方案

In C#, you have primitive types (ints, structs, etc.) and reference types (objects). These are built in to the language. In C++, you have to be explicit. Here is a set of equivalent ways of referring to objects in C# and C++, based on whether they are reference types or primitives, and whether or not you're using ref:

C# type                     | C++ Type
----------------------------+---------
Primitive type, with no ref | Normal parameter passing
Reference type, with no ref | Pointer (*)
Primitive type, with ref    | Reference (&)
Reference type, with ref    | Reference of a pointer (&*)

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