问题描述
什么是编组，为什么我们需要它?
What is marshalling and why do we need it?
我很难相信我不能通过C#到C的线路发送int，而不得不将其编组.为什么C#不能只用开始和结束信号发送32位，告诉C代码它已经接收到int?
I find it hard to believe that I cannot send an int over the wire from C# to C and have to marshall it. Why can't C# just send the 32 bits over with a starting and terminating signal, telling C code that it has received an int?
推荐答案
因为不同的语言和环境具有不同的调用约定，不同的布局约定，不同的原语大小(请参见C#中的char和C中的char) ，不同的对象创建/销毁约定以及不同的设计准则.您需要一种方法来将这些东西从管理土地中带入某个地方，在该地方非管理土地可以看到和理解它，反之亦然.这就是编组的目的.
Because different languages and environments have different calling conventions, different layout conventions, different sizes of primitives (cf. char in C# and char in C), different object creation/destruction conventions, and different design guidelines. You need a way to get the stuff out of managed land an into somewhere where unmanaged land can see and understand it and vice versa. That's what marshalling is for.
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