将 Lua 编译为 C++ 有什么好处？除了避免“extern C”之外并得到'C++例外？
我对 Lua 还很陌生，我想使用 C++ 将 Lua 嵌入到我们的游戏项目中。我注意到的第一件事是，Lua 被允许编译为 C++ 代码，从文档中，我了解到这将消除围绕 Lua 标头的“extern C”，并且错误处理将是 C++ 异常，而不是跳远/定步跳。
我的问题是，除了这两个区别之外，将 Lua 代码编译为 C++ 代码还有其他真正的好处吗？这两个并不能真正说服我，因为，1）用“extern C”包装 c 头并不困扰我，2）我们的项目不允许异常，所以我必须更改 luaconf.h 才能使用无论如何，长跳/定跳。
I'm quite new in Lua, and I want to embed Lua into our game project using C++. The first thing I notice, Lua is allowed to be compiled as C++ code, and from the doc, I've learned that this will eliminate the 'extern C' wrapping around Lua's headers, and also the error handling will be C++ exception instead of longjump/setjump.
My question is, besides these two differences, is there any other real benefit to compile Lua code as C++ code? These two don't real convince me, as, 1) it doesn't bother me to wrap c headers with 'extern C', 2) our project doesn't allow exception, so I have to change in luaconf.h to use longjump/setjump any way.
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这些就是将 Lua 编译为 C++ 的好处。
extern "C"根本不是重点；这都是关于异常处理的。虽然您的应用程序禁止异常，但并非每个 C++ 应用程序都这样做。如果您使用全部 C++，您要么必须采取措施防止异常通过 Lua 传递（这不是世界上最简单的事情，除非您使用像 Luabind 这样的包装器），要么编译Lua 作为 C++。
将 Lua 编译为 C++ 没有其他好处。异常处理是Lua可以编译为C++的原因。
Those are the benefits of compiling Lua as C++. The
extern "C"thing isn't even really the point; it's all about exception handling. And while your application forbids exceptions, not every C++ application does.If you're using all of C++, you either have to take steps to prevent exceptions from passing through Lua (not the easiest thing in the world unless you're using a wrapper like Luabind) or to compile Lua as C++.
There are no other benefits of compiling Lua as C++. Exception handling is the reason why Lua can be compiled as C++.
另一种思考方式可能是把问题反过来问“用 C 语言编译 Lua 有什么好处吗（如果我们已经在使用 C++）？”
如果将 Lua 编译为 C 没有任何优势（据我所知，没有），并且您已经在使用 C++ 来编写其他代码，那么将 Lua 编译为 C++ 似乎也更简单，而且可能更健壮，因为如果从 Lua 到 C++ 的回调碰巧意外抛出，那么你永远不会有非 C++ 堆栈帧来搞砸堆栈倒带...
Another way of thinking about it might be to turn the question on its head and ask "Is there any benefit to compiling Lua in C (if we're already using C++)?"
If there's no advantage to compiling Lua as C—and as far as I know, there isn't—and you're already using C++ for your other code, compiling Lua as C++ too seems both simpler and potentially a little more robust, because you'll never have non-C++ stack frames to screw up stack rewinding if a callback into C++ from Lua happens to throw accidentally...