040000 tree 7518d31db14604d556c588f8f20b3b2bf7018aff	cstdlib
040000 tree 48b51c1e30a5e23218b64227fe2389ec3ff5450c	cstring
040000 tree d7f95a8053e3f337932a79403f2ff5df4cf8d372	ctime
040000 tree faa7112a2c276b364215e9ea550f39054722fbdb	functional
040000 tree 41b61fc35469af5ae20f0f21e7eefa856f1e9232	memory
040000 tree de5c23c87540e6bc0b727600436459654cc1491f	type_traits
040000 tree 2531437fdab9ff336a98ca68d32a75aefb1436f3	utility