040000 tree edd1dc3b8cff75bb6faac391fe4d0fe8e8dd9f41	bitset
040000 tree 59b7ed260b8c76dbe3d5637fd9533f789a142520	cstdlib
040000 tree a5a57c5eede840ef5058c4cfd6caf2a44e7a7099	cstring
040000 tree 0e36d65e04c5ad88795f34d4c865c51911325fa7	ctime
040000 tree 735133679102d11cbe8a151ad2cd1defc49c96b8	functional
040000 tree ff38658fd5704315aaee3a03f0f4557e7742b06e	memory
040000 tree 74ab89b9cbcea4bd08927525b20912069673bc9b	type_traits
040000 tree 0ffa4ca1535ae3f3628fe5c61f54f4bd1309ab20	utility