XBT_PUBLIC unsigned int simcall_comm_waitany(simgrid::kernel::activity::CommImpl* comms[], size_t count,
double timeout);
XBT_PUBLIC void simcall_comm_wait(const smx_activity_t& comm, double timeout);
-XBT_PUBLIC int simcall_comm_test(const smx_activity_t& comm);
+XBT_PUBLIC bool simcall_comm_test(const smx_activity_t& comm);
XBT_PUBLIC int simcall_comm_testany(smx_activity_t comms[], size_t count);
XBT_PUBLIC int simcall_comm_testany(simgrid::kernel::activity::CommImpl* comms[], size_t count);
#endif