versuchs mal so:

Code:
#include "RP6RobotBaseLib.h" 



 void Bumper() 
 { 
     if(getBumperLeft()) 
     {  
        writeString("Linker Bumper gedrueckt!! \n"); 
     }  
     else if(getBumperRight()) 
     {
        writeString("Rechter Bumper gedrueckt!! \n"); 
     }  
     else if(getBumperLeft() && getBumperRight()) 
     {
        writeString("Beide Bumper gedrueckt!! \n"); 
     }  
  } 


int main(void) 

{ initRobotBase(); 
  powerON(); 

  writeString("Hallo! \n"); 

   while(1) 
   { 
      Bumper(); 
   }

 return 0; 
}
Bei mir funktioniert es so jedenfalls...