Xcode objective C++ -- avoid making .hh files?

To get header files with both Objective C and C++ objects to work, I have to rename them from .h to .hh. But my colleague uses .h with no problems. Neither of us understands开发者_如何学编程 why.

Can anyone explain?

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I guess your colleague's project settings have the Compile Sources As set to Objective-C++ and you don't.