mountainbike.h transport/bicycle.h src/mountainbike.cpp transport/bicycle.h src/mountainbike.h transport::MountainBike transport #ifndef__TRANSPORT_MOUNTAIN_BIKE_H__ #define__TRANSPORT_MOUNTAIN_BIKE_H__ #include<transport/bicycle.h> namespacetransport { classMountainBike:publicBicycle { public: boolSetSuspension(doublestiffness); template<typenameBreakType> boolChangeBreak(BreakTypebreakType) { if(breakType) { returntrue; } returnfalse; } }; } #endif/*__TRANSPORT_MOUNTAIN_BIKE_H__*/