100644 blob e9f79736f51663ffffdb6d43b89d141ba931a0af	1.cc
100644 blob 80b0385eba1e02e3da043b0422c900e9dda485d8	assign_neg.cc
100644 blob e3f5368c60219973e988049ddf94750cccdda7fb	copy_neg.cc