1 #include <low_volume_speaker.h> 2 Speak()3void LowVolumeSpeaker::Speak() { } Listen()4LISTEN_RETURN_TYPE LowVolumeSpeaker::Listen() { LISTEN_RETURN_STATEMENT } 5 6 #ifdef ADD_UNEXPORTED_ELF_SYMBOL UnexportedSymbol(int * a)7void UnexportedSymbol(int *a) { 8 if (a) { 9 a++; 10 } 11 a--; 12 } 13 #endif 14