您的问题是，你有.h文件被包含在C ++文件，和/或包括在其中。为了做你想要的所有你使用的类c ++需要保持所有obj相关的东西在一个#ifdef或只是不公开任何obj c头文件。

Your problem is that you have .h files that are being included by C++ files that have objective c type and/or includes in them. In order to do what you want all of your classes that are used by c++ need to either keep all obj c related stuff in an #ifdef or simply not expose anything obj c in the header file.

例如，您可以在标题中使用此ifdef：

For example, you can use this ifdef in your header:

#ifdef __OBJC__
     // Objective C / C++ code here
#endif

重要的是记住.h文件是 以及头文件，因此它们实际上包括在内。如果在.cpp文件中包含目标c代码，编译器就会感到困惑和哭泣。

It's important to remember that .h files are includes as well as header files, so they are actually included. If you include objective c code in a .cpp file the compiler gets confused and cries.

编辑：最重要的事情要记住，你需要确保任何目标c头文件（或其他具有目标c代码的文件）不包括在cpp文件中。如果你能做到这一点，你会很好。

The most important thing to remember is that you need to ensure that any objective c header files (or other files with objective c code) are not included from the cpp files. If you can do that you'll be fine.