Job Outlook. Excellent. Respiratory therapists provide care and treatment for patients suffering from breathing and cardiopulmonary difficulties. They may also provide emergency medical care for patients who have experienced asphyxiation, heart attacks, or shock.
0 is a number alone or not. if you put 0 by itself its both a number and a digit.
If you want to represent 0 as the single 0 decimal digit rather than the empty digit-string (either is valid), then you'd check specifically for x==0. share | improve this answer. answered Sep 11 '09 at 0:31. Jonathan Graehl. 6,846 20 33. BCD using only the trailing nybble in a byte is very inefficient.