https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87544
--- Comment #8 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Marc Glisse from comment #6) > I think the standard specifies the fallback value in allocator_traits for > allocators that do not provide max_size (we could open an issue asking for > more freedom in the choice of this value, as long as there is a default, and > maybe also the freedom to return something smaller than a.max_size() when > that value is provided), but it does not specify what > std::allocator::max_size should return (though this function is deprecated), It's deprecated because the default provided by allocator_traits is supposed to be equivalent, making it redundant. But it's not equivalent. The fact that std::allocator<T>::max_size() was underspecified does mean we're allowed to return a sane value, and so it probably shouldn't be deprecated. I've raised this with the LWG. I hate max_size() so much.
