https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82146
--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to MaaSoftware from comment #5) > Ok. > > I am sorry, > return MyFunc(Num, *(CMaaString *)NULL, doc); // produces GPF in calling > method not here. So what? Dereferencing a null pointer has undefined behaviour, so anything can happen. It could crash immediately, or it could produce unexpected results elsewhere in the program. > I have think before what all references are object memory pointers inside > compiller, You are wrong. > just it is more easy working with references of objects not with > pointers in most ways. But references can't be null, so if you need something that can be null you must use a pointer. It's quite simple, please stop wasting our time. > And no warning generated to *(CMaaString *)NULL code. > CXXFLAGS = -pipe -W -O3 -fpermissive Just because there's no warning doesn't mean the code is correct.
