http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59312
--- Comment #2 from Alexander Khovansky <alexander.o.khovansky at yandex dot com> --- Jonathan Wakely, I am looking at working draft N3337 (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3337.pdf), which has only editorial changes (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3338.html) since released standard (N3291). If you have pre-release draft N3242, paragraphs 20 and 23 are numbered 21 and 24.