248   struct BlockMeta {  struct in __anon937b61150211::BumpPointerAllocator
249     BlockMeta* Next;  argument
254   static constexpr size_t UsableAllocSize = AllocSize - sizeof(BlockMeta);
257   BlockMeta* BlockList = nullptr;
263     BlockList = new (NewMeta) BlockMeta{BlockList, 0};  in grow()
267     NBytes += sizeof(BlockMeta);  in allocateMassive()
268     BlockMeta* NewMeta = reinterpret_cast<BlockMeta*>(std::malloc(NBytes));  in allocateMassive()
271     BlockList->Next = new (NewMeta) BlockMeta{BlockList->Next, 0};  in allocateMassive()
277       : BlockList(new (InitialBuffer) BlockMeta{nullptr, 0}) {}  in BumpPointerAllocator()
293       BlockMeta* Tmp = BlockList;  in reset()
298     BlockList = new (InitialBuffer) BlockMeta{nullptr, 0};  in reset()