CL_Slot CL_Signal_v0::connect( void(*)() function); CL_Slot CL_Signal_v0::connect( void(*)(UserData) function, const UserData & user_data); CL_Slot CL_Signal_v0::connect( InstanceClass * instance, void(InstanceClass::*)() function); CL_Slot CL_Signal_v0::connect( InstanceClass * instance, void(InstanceClass::*)(UserData) function, const UserData & user_data);