4763 class short_alloc  class
4770     template <class _Up> struct rebind {typedef short_alloc<_Up, N> other;};
4772     short_alloc(arena<N>& a) noexcept : a_(a) {}  in short_alloc()  function in __cxxabiv1::__anon6eae74d60111::short_alloc
4774         short_alloc(const short_alloc<U, N>& a) noexcept  in short_alloc()  function in __cxxabiv1::__anon6eae74d60111::short_alloc
4776     short_alloc(const short_alloc&) = default;
4777     short_alloc& operator=(const short_alloc&) = delete;
4791     operator==(const short_alloc<T1, N1>& x, const short_alloc<U, M>& y) noexcept;
4793     template <class U, std::size_t M> friend class short_alloc;
4799 operator==(const short_alloc<T, N>& x, const short_alloc<U, M>& y) noexcept  in operator ==()
4807 operator!=(const short_alloc<T, N>& x, const short_alloc<U, M>& y) noexcept  in operator !=()
4848 template <class T> using Alloc = short_alloc<T, bs>;