用于iOS开发的Objective-C ++

使用ObjC ++非常简单。
您必须声明扩展名为.mm的源文件。它将使编译器将它们视为ObjC ++。与标题相同：使用.hh扩展名。

Using ObjC++ is quite easy. You have to declare source files with extension .mm. It will make compiler treat them as ObjC++. The same with headers: use the .hh extension.

还有另一种选择：转到目标设置并设置编译源代码至Objective-C ++。

There is another option: go to target settings and set Compile Sources As to Objective-C++.

这就是全部。无需额外的工作。

That's all. No additional work is necessary.

一些注意事项：如果你想开发一个原生iOS应用程序，那么使用Objective C.这将节省大量时间。
但在某些情况下使用C ++更合适。例如。用于跨平台开发。因此，您只需使用一小部分Objective C for iPhone或Java for Android，就可以将代码与环境粘合在一起。 C ++中的其他所有内容。我将它用于我的跨平台游戏开发。

Some notes: if you want to develop a native iOS app, then use Objective C. It will save a lot of time. But in some cases using C++ is more appropriate. E.g. for cross-platform development. So you use only a little bit of Objective C for iPhone or Java for Android just to glue your code with environment. Everything else in C++. I use this for my cross-platform game development.

另一种情况是性能：目标C主要比C ++慢。然而，它只在方法调用期间才会被注意到（在ObjC中它被称为消息传递）。

Another case is performance: Objective C is principally slower then C++. However it is only noticeable during method calls (in ObjC it is called messaging).