[PATCH] PR libstdc++/70940 make pmr::resource_adaptor return aligned memory

[Jonathan Wakely]

On 21/06/18 15:00 +0100, Jonathan Wakely wrote:
>       virtual void
>-      do_deallocate(void* __p, size_t __bytes, size_t __alignment)
>+      do_deallocate(void* __p, size_t __bytes, size_t __alignment) noexcept
>+      override
>       {
>-	using _Aligned_alloc = std::__alloc_rebind<_Alloc, char>;
>-	size_t __new_size = _S_aligned_size(__bytes,
>-					    _S_supported(__alignment) ?
>-					    __alignment : _S_max_align);
>-	using _Ptr = typename allocator_traits<_Aligned_alloc>::pointer;
>-	_Aligned_alloc(_M_alloc).deallocate(static_cast<_Ptr>(__p),
>-					    __new_size);
>+	auto __ptr = static_cast<char*>(__p);
>+	if (__alignment == 1)
>+	  _M_alloc.deallocate(__ptr, __bytes);

Oops, this is missing a return!

Patch incoming ...