If you force the bool reprensentation to be only 1 or 0, then you can apply the bitwise and.<P>Obviously, in the cast above, the compiler has to generate code that turns 0 into 0 and everything ...

void closeDiskImage () Closes the disk image currently in use. bool isOk () Returns true if a disk image has been successfuly opened for this drive. bool openFile (uint8_t channel, const char *name, ...