#include <simgear/props/props.hxx>
#include <simgear/structure/subsystem_mgr.hxx>
-
-using std::string;
-
+#include <simgear/math/SGMath.hxx>
class SGSampleGroup;
int _last_frequency_khz;
bool _transmitter_valid;
- string _last_ident;
+ std::string _last_ident;
SGGeod _transmitter_pos;
SGVec3d _transmitter_cart;
double _transmitter_range_nm;
int _ident_count;
time_t _last_ident_time;
float _last_volume;
- string _adf_ident;
+ std::string _adf_ident;
SGSharedPtr<SGSampleGroup> _sgr;
};