Question

I have some Objective-C code that I’d like to convert to Objective-C++. To changed the extension of the source files from .m to .mm, and I set the filetype as Objective-C++ Source. However, now my project fails to build. Its giving an error on lines that I call vm_deallocate.

Here is the line:

vm_deallocate(mach_task_self(), (vm_address_t)prevInfo, prevInfo);

And the exact error is:

Use of undeclared identifier vm_deallocate

Is vm_deallocate restricted to Objective-C? Is there an equivalent Objective-C++ function?

Answer 1

No, since it’s c.
This is more a header problem.

Make sure you have include in the right file

#include <mach/mach_init.h>
#include <mach/vm_map.h>

And it should compile without complain.