100644 blob b4ba7d35dc1aaa3fd58b3b4fb1de35d12e9bd5d0	1.cc
100644 blob a6282acbb92b0803e0128dfcd3c748a83349548a	constexpr.cc
100644 blob 7309c3f43041ed7f82348152686deca8fb6dee4c	constrained.cc
040000 tree 3d39552d325fb45f4e0a9dd91a002c42f805ffa5	requirements