objc_msgSend

gistfile1.txt

- (void) bar {
    SEL selector = @selector(foo);
    typedef void (send_type) (id, SEL);
    send_type func = (send_type)objc_msgSend();
    func (self, selector);
}


foobar.m:25:22: error: used type 'send_type' (aka 'void (__strong id, SEL)') where arithmetic or pointer type is required
    send_type func = (send_type)objc_msgSend();
                     ^          ~~~~~~~~~~~~~~
1 error generated.

This is pretty much the code given in Session 417, page 14: 
http://devstreaming.apple.com/videos/wwdc/2014/417xx2zsyyp8zcs/417/417_whats_new_in_llvm.pdf?dl=1

Try:

((return_type (*) (id, SEL, arg1, arg2, ...))objc_msgSend)(target, selector, arg1, arg2, ...);

send_type func = (send_type)objc_msgSend;

leave out the ()

@elland That works!

@macguru: That does not seem to work

foobar.m:25:22: error: used type 'send_type' (aka 'void (__strong id, SEL)') where arithmetic or pointer type is required
send_type func = (send_type)objc_msgSend;
^ ~~~~~~~~~~~~
1 error generated.