247   struct BlockMeta {  struct in __anon58513fa40211::BumpPointerAllocator
248     BlockMeta* Next;  argument
253   static constexpr size_t UsableAllocSize = AllocSize - sizeof(BlockMeta);
256   BlockMeta* BlockList = nullptr;
262     BlockList = new (NewMeta) BlockMeta{BlockList, 0};  in grow()
266     NBytes += sizeof(BlockMeta);  in allocateMassive()
267     BlockMeta* NewMeta = reinterpret_cast<BlockMeta*>(std::malloc(NBytes));  in allocateMassive()
270     BlockList->Next = new (NewMeta) BlockMeta{BlockList->Next, 0};  in allocateMassive()
276       : BlockList(new (InitialBuffer) BlockMeta{nullptr, 0}) {}  in BumpPointerAllocator()
292       BlockMeta* Tmp = BlockList;  in reset()
297     BlockList = new (InitialBuffer) BlockMeta{nullptr, 0};  in reset()