"client.host_names" segment fault

[wercsrsr]

https://github.com/nusdbsystem/pivot/blob/master/src/models/cart_tree.cpp#L306 When the program runs at this point, a segment error occurs.

I try to cout "client.host_names", however, an error occurs when the cout statement is compiled.

[Yuncheng Wu]

The setup_sockets function is to set up communications with the MPC parties, you may need to check your Pivot_SPDZ parties are started and are listening on the correct ports, following the configurations here.

The cout line you add is incorrect as vector cannot be printed directly in c++. Try to print using the for loop.