https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109990
--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Bruno Haible from comment #4) > That is the only way of keeping track of pointers _into_ the string_space > area, when it is reallocated. How else would you want to do it? You could use intptr_t casting to do the subtraction ...