The following is a code snippet which deals with class extensions. What I am trying to do is generate a random ID called internal ID (that is used by the program later on) which is stored in an enc...

I'm learning Objective-C and trying to develop a simple zipper application, but I stopped when now, when I need to insert a button at my dialog and this button opens a Open File Dialog that will se...

I'm trying to compile a program in Objective C on Ubuntu, I have installed GNUstep, set all the GNUSTEP_* environment variables, and installed clang, because I read that gcc can't compile Objective...

I have the following objective-c snippet in my hello world example: //hello.m #import <Foundation/Foundation.h> #import "hello.h" void sayHello() { #ifdef FRENCH NSString *helloWorld = @...

I saw that the Clang 3.0 port includes Objective-C as a development language, and furthermore, I also found this port "libobjc2-1.6" (Replacement Objective-C runtime supporting Obj-C 2 features) an...

Objective-C/ARC/memory managements questions have been done to death on SO, but this one seems slightly different to the existing ones. I've been trying to use Objective-C with GNUStep and Clang. ...

There seem to be quite a few tutorials on how to do this, each slightly different. I'm hoping someone can recognize the error messages I'm getting and point me in the right direction. My code, h.m...

I finally got GNUstep working (on windows), and it compiles and runs fine. However, whenever I try to use NSLog, I get the following error: $ gcc -o hello hello.m -I /GNUstep/System/Library/Header...

I downloaded GNUStep and installed it, however I am not sure where I can find an IDE. does anyone know what programs serve as a GNUStep IDE/where to get them? Failing that, does anyone know of a tu...

I just installed GNUstep on my Windows XP machine and I'm attempting to compile the following Objective-C Hello World program from the command line: #import <Foundation/Foundation.h> int m...

I am an Objective-C newbie, who still does not have a Mac, but still I want to practice the language. I heard that in the non-Mac world, GNUstep offers a good alternative to Cocoa, and can be used ...

I'm aware of the existence of libobjc2, and I gather that I'll need to use clang rather than GCC, but I can't find any basic instructions of what's different about the compilation process. Can any...

Most somewhat modern programming languages have a standard library? It is my impression is that there isn't a decent sized standard library for Obj-C , rather that it relies mostly/all on Cocoa and...

I don't know Objective-C but to me it appears a nice language. But the only context I know it from is everything Apple. But Objective-C is even in the GNU Compiler Collection. Is there some...

It seems that Cocoa seems to be the main platform for Objective-C. GCC (which Xcode uses) supports Objective-C so it must be available on a wide range of platforms. Are there any notable cross-pl...

I'm working on a Cocoa app with the intention of using it on Windows and Linux using GNUstep. I've been avoiding Objective-C 2.0 features thus far, but I'd really love to start using at least prope...

We need to write some software that will compile and run on both an Mac OS X server and Ubuntu. We would love to use Objective-C with all of its Cocoa goodness, however the GNUstep implementa...