在 Mac OS X 上结合 Objective-C 和 C/C++

Question

Can I create an Objective-C library (by XCode) and use it in my C/C++ application (compiled by GCC without supporting Objective-C).

Answer 1

You can try this tool (it's fairly raw at the moment) to generate C/C++ bindings for Objective-C code (created to help get Wine [C only] code working with OSX[Objective-C] libraries).

This email explains how the tool came about and has the binding generating code as an attachment.

http://www.winehq.org/pipermail/wine-devel/2011-April/089657.html The download is actually a tar.gz.

You could give it a shot yourself and then try emailing Charles about using it if it's too much trouble (and bug him to set it up as a proper project somewhere. :-)

Answer 2

You need to create a C or C++ interface for your Objective-C code, so you can use this interface to call the Objective-C code from your C/C++ code. Note that you can take advantage of Cocoa's toll-free bridging: eg you can return an NSString* and interpret it as a CFStringRef in your C/C++ code.