Problem with eclipse

Both C# and C++ are object oriented, but that does not really matter in terms of how well Xcode is suited. You can use Xcode for C++ projects without any problems. For compilers, I don't know about C# but for C or C++ you have GCC which is probably what eclipse uses anyway. If you have installed Xcode you will have both GCC/g++ and clang installed already on your system. Eclipse itself is not a compiler, you can use any editor and compile in the terminal with either clang or gcc for C and g++ for C++.

Edit: C# should not be confused with C (I get that impression from your C#/C++ notation), C# is a Microsoft invention that normally requires a VM to run. I don't know about what options there are to compile C# to a Mach-O file on Macs.

 

I mostly use Xcode for Cocoa, but I have used it for pure C++ code as well. As I said you can use it for that purpose without problem, if you have and know Xcode already that seems like a sensible approach. Just make sure you pick the right template for your project, i.e command line and C++. Other options is to pick an editor of choice (BBedit, Textwrangler, Text mate, vim, emacs etc.) and compile in the terminal.

 

Have you built your binary before trying to use the run button in Eclipse? Try pressing Command & B at the same time. Your project will then build. If it builds successfully, then you should be able to use the run button in the toolbar.

 

If you are not using the Helios release of Eclipse on the Mac, that may be the problem. Older versions of Eclipse won't debug properly on Mac OS X (older than 10.7 Lion) and even Helios won't work properly to debug on 10.7 Lion.

Helios should work with 10.5 and 10.6 versions of Mac OS X.