http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49728
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-07-13 09:47:14 UTC --- See http://blog.regehr.org/archives/213 for an introduction to what undefined behaviour means. C++ does not check for runtime errors, instead your program is simply broken. http://blog.llvm.org/2011/05/what-every-c-programmer-should-know.html is another good article.
