I would probably just do this: #define API_URL(tail) "http://localhost:2000/api/"; #tail #define URL_GET_USER_DATA API_URL(/get/user/data.json) On Wed, Apr 22, 2009 at 10:16 AM, Jon Drukman <jdrukman@xxxxxxxxx> wrote: > I want to do the following: > > #define API_URL(tail) @"http://localhost:2000/api/##tail"; > > #define URL_GET_USER_DATA API_URL(/get/user/data.json) > > and then when I refer to URL_GET_USER_DATA later in the code, it should > expand to @"http://localhost:2000/api/get/user/data.json"; > > I can not get "tail" to expand in the API_URL macro. I've tried every > combination of single and double pound signs. (Well, every combination > except for whatever the correct one is, obviously.) > > gcc 4.0.1 on mac os X, trying to build an iPhone app in Objective-C. > > Thanks for any help. > -jsd- > >
