https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114940
--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> --- What would be needed to work without it? It looks like the allocation would have to be larger so the size could be stored as a cookie at the start of the allocated block? Tangentially, could _M_alloc_size use __ba - 1 instead of __ba?
