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AP_GPS: fix SBP2 driver build warnings by using memcpy

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Build gave the following warnings:

../../libraries/AP_GPS/AP_GPS_SBP2.cpp: In member function ‘void AP_GPS_SBP2::_sbp_process_message()’:
../../libraries/AP_GPS/AP_GPS_SBP2.cpp:181:78: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
             last_heartbeat = *((struct sbp_heartbeat_t*)parser_state.msg_buff);
                                                                              ^
../../libraries/AP_GPS/AP_GPS_SBP2.cpp:181:28: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
             last_heartbeat = *((struct sbp_heartbeat_t*)parser_state.msg_buff);
                            ^
../../libraries/AP_GPS/AP_GPS_SBP2.cpp:186:76: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
             last_gps_time = *((struct sbp_gps_time_t*)parser_state.msg_buff);
                                                                            ^
../../libraries/AP_GPS/AP_GPS_SBP2.cpp:186:27: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
             last_gps_time = *((struct sbp_gps_time_t*)parser_state.msg_buff);
                           ^
../../libraries/AP_GPS/AP_GPS_SBP2.cpp:190:74: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
             last_vel_ned = *((struct sbp_vel_ned_t*)parser_state.msg_buff);
                                                                          ^
../../libraries/AP_GPS/AP_GPS_SBP2.cpp:190:26: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
             last_vel_ned = *((struct sbp_vel_ned_t*)parser_state.msg_buff);
                          ^
../../libraries/AP_GPS/AP_GPS_SBP2.cpp:194:74: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
             last_pos_llh = *((struct sbp_pos_llh_t*)parser_state.msg_buff);
                                                                          ^
../../libraries/AP_GPS/AP_GPS_SBP2.cpp:194:26: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
             last_pos_llh = *((struct sbp_pos_llh_t*)parser_state.msg_buff);
                          ^
../../libraries/AP_GPS/AP_GPS_SBP2.cpp:198:68: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
             last_dops = *((struct sbp_dops_t*)parser_state.msg_buff);
                                                                    ^
../../libraries/AP_GPS/AP_GPS_SBP2.cpp:198:23: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
             last_dops = *((struct sbp_dops_t*)parser_state.msg_buff);
                       ^
../../libraries/AP_GPS/AP_GPS_SBP2.cpp:202:74: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
             last_event = *((struct sbp_ext_event_t*)parser_state.msg_buff);
                                                                          ^
../../libraries/AP_GPS/AP_GPS_SBP2.cpp:202:24: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
             last_event = *((struct sbp_ext_event_t*)parser_state.msg_buff);
                        ^
This commit is contained in:
Francisco Ferreira 2017-06-13 17:27:30 +01:00
parent 005dbf41a7
commit f35f0d59dd
No known key found for this signature in database
GPG Key ID: F63C20A6773E787E
1 changed files with 6 additions and 6 deletions
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12
libraries/AP_GPS/AP_GPS_SBP2.cpp
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@ -178,28 +178,28 @@ AP_GPS_SBP2::_sbp_process_message() {
//Here, we copy messages into local structs.
switch (parser_state.msg_type) {
case SBP_HEARTBEAT_MSGTYPE:
last_heartbeat = *((struct sbp_heartbeat_t*)parser_state.msg_buff);
memcpy(&last_heartbeat, parser_state.msg_buff, sizeof(struct sbp_heartbeat_t));
last_heartbeat_received_ms = AP_HAL::millis();
break;
case SBP_GPS_TIME_MSGTYPE:
last_gps_time = *((struct sbp_gps_time_t*)parser_state.msg_buff);
memcpy(&last_gps_time, parser_state.msg_buff, sizeof(struct sbp_gps_time_t));
break;
case SBP_VEL_NED_MSGTYPE:
last_vel_ned = *((struct sbp_vel_ned_t*)parser_state.msg_buff);
memcpy(&last_vel_ned, parser_state.msg_buff, sizeof(struct sbp_vel_ned_t));
break;
case SBP_POS_LLH_MSGTYPE:
last_pos_llh = *((struct sbp_pos_llh_t*)parser_state.msg_buff);
memcpy(&last_pos_llh, parser_state.msg_buff, sizeof(struct sbp_pos_llh_t));
break;
case SBP_DOPS_MSGTYPE:
last_dops = *((struct sbp_dops_t*)parser_state.msg_buff);
memcpy(&last_dops, parser_state.msg_buff, sizeof(struct sbp_dops_t));
break;
case SBP_EXT_EVENT_MSGTYPE:
last_event = *((struct sbp_ext_event_t*)parser_state.msg_buff);
memcpy(&last_event, parser_state.msg_buff, sizeof(struct sbp_ext_event_t));
logging_ext_event();
break;