Apple

On Oct 7, 2005, at 8:21 PM, Lance Drake wrote:

The file has a '.cpp' suffix. It's already compiling OK - as far as I can tell - it seems more like the big problem is in making a reference to that thing from out of the Obj-C world. As a test, I changed it to '.mm' - but nothing is behaved any differently.

Can you show it as "test_main.mm" in your example, then, just so we'd feel a bit more comfortable with it? :)

The page at <http://developer.apple.com/releasenotes/Cocoa/Objective-C++.html> has lots to say about this topic - but, so far, I can't get it happen for me. For instance - at the beginning of the '.m' file in which I would like to refer to the C++ object - there's an error generated with the sequence:

// ---------------------
// TEST_MAIN.m

#import <Cocoa/Cocoa.h>

class myCPPfile;
...
...

ERROR: /Volumes/dev/CPP_TEST/TEST_MAIN.h:11: warning: data definition has no type or storage class

That error is from your header file, not your source file. What's line 11 of TEST_MAIN.h? Also, just to speed things up, can you include the full line containing the compiler invocation from Xcode's detailed build log?

References:
	>Re[2]: C++ in a Cocoa App - How Hard is THAT? (From: Lance Drake <email@hidden>)