Here is a list of all variables with links to the files they belong to:

• has_common_reference_helper : tuple.h
• has_common_reference_helper< T, U > : tuple.h
• has_common_type_helper : tuple.h
• has_common_type_helper< T, U > : tuple.h
• is_client : ipc_protocol.h
• is_server : ipc_protocol.h