title: linking and using a C++ library with an Objective-C application
body: <p>I'm writing a graphical application using Objective-C for the front end and C++ for the graphics processing and network communication. I read around on Apple's site looking for a way to link either a <strong>.dylib</strong> or <strong>.so</strong> with my C++ code in it to my Xcode project, but nothing seemed to work. I was able to get the project to reference it and link against it, but when I tried to call functions from that .dylib, it was saying that it didn't know what I was trying to do.  Does anyone know what is going on here?</p>
  
  <p>I know that Objective-C has all the libraries I would need to do graphics and networking, but I just feel like doing it like this. I haven't done much C++ in a while and I want to learn more Objective-C, so what better way than to use them together?</p>
  
  <p>Thanks,
  Robbie</p>