How does casting and calling obj_msgSend() not invoke undefined behavior?...

iOS 8 crash - objc_msgSend() selector name: respondsToSelector:...

SIGSEGV 'SEGV_MAPERR' crash inside my app that is on apple store...

Why is objc_msgSend causing an EXC_BAD_ACCESS?...

How to pass an array to an objc method that expects var args (eg ...')...

Debug objc_msgSend crash I cant reproduce...

viewing assembly code for Objective-c...

Basic message counting in Objective-c...