什么是目标 C++？
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What is Objective C++?
提问by Saurabh
What is Objective C++ and can I use this language in Xcode?
什么是 Objective C++，我可以在 Xcode 中使用这种语言吗？
采纳答案by Doches
Objective-C++ is simply source code that mixes Objective-C classes and C++ classes (two entirely unrelated entities). Your C++ code will work, just as before, and the resulting executable will be linked with the Objective-C runtime, so your Objective-C classes will work as well. You can definitely use it in Xcode -- name your files with the .mmextension.
Objective-C++ 只是混合了 Objective-C 类和 C++ 类（两个完全不相关的实体）的源代码。您的 C++ 代码将像以前一样工作，并且生成的可执行文件将与 Objective-C 运行时链接，因此您的 Objective-C 类也将工作。你绝对可以在 Xcode 中使用它——用.mm扩展名命名你的文件。
Also, you might want to read Apple's (sadly deleted, but archived) documentation on Objective-C++.
此外，您可能想阅读Apple 关于 Objective-C++ 的（遗憾的是已删除，但已存档）文档。
回答by Pablo Santa Cruz
Objective-C++ is Objective-C (probably with Cocoa Framework) with the ability to link with C++ code (probable classes).
Objective-C++ 是具有与 C++ 代码（可能的类）链接的能力的 Objective-C（可能带有 Cocoa 框架）。
Yes, you can use this language in Xcode to develop for Mac OS X, iPhone/iPodTouch, iPad. It works very well.
是的，您可以在 Xcode 中使用这种语言为 Mac OS X、iPhone/iPodTouch、iPad 进行开发。它运作良好。
You don't have to do anything weird in your project to use Objective-C++. Just name your Objective-C files with the extension .mm(instead of .m) and you are good to go.
你不必在你的项目中做任何奇怪的事情来使用 Objective-C++。只需使用扩展名.mm（而不是.m）命名您的 Objective-C 文件，就可以了。
It is my favorite architecture: develop base class library of my game/application in C++ so I can reuse it in other platforms (Windows, Linux) and use Cocoa just for the iPhone/iPad UIspecific stuff.
这是我最喜欢的架构：用 C++ 开发我的游戏/应用程序的基类库，以便我可以在其他平台（Windows、Linux）中重用它，并将 Cocoa 仅用于 iPhone/iPad UI特定的东西。
回答by John Riselvato
If you want to use Objective-c++ but don't want to name your files .mmcheckout my answer to a similar question.
如果您想使用 Objective-c++ 但不想命名您的文件，请查看.mm我对类似问题的回答。
Without changing any .m to .mm or anything like that, if you click your project, click tagets->build settings go all the way down to "LLVM GCC 4.2 - Languages"(new xcode says "Apple LLVM compiler 4.2") you will see Compile Sources Aschange that value to Objective-C++;
在不将任何 .m 更改为 .mm 或类似内容的情况下，如果单击您的项目，单击 tagets->build settings 一直到 “LLVM GCC 4.2 - Languages”（新的 xcode 说“Apple LLVM compiler 4.2”）你将看到Compile Sources As将该值更改为Objective-C++；
