Objective-C++

Use C++ from Objective-C

Create a C code wrapper to call the C++ functions. Then call the C code from Objective-C.

C++

cpp.h:

#ifdef __cplusplus
extern "C"
{
#endif
   void  call_cpp1( char *);
   char  *call_cpp2( void);
#ifdef __cplusplus
};
#endif

Objective-C

foo.m

#include <cpp.h>

@implementation Foo

- (void) callCPlusPlus1:(char *) s
{
   call_cpp1( s);
}

- (char *) callCPlusPlus2
{
   return( call_cpp2);
}

@end

Use Objective-C from C++

This is possible too, but you need to link against the mulle-objc-runtime.h only:

TODO: test this does this work with mulle-c11 ?

#ifdef __cplusplus
extern "C"
{
#include <mulle-objc/mulle-objc-runtime.h>
};
#endif

Now you can use the runtime functions to create instances and call them. It’s very cumbersome though.