Originariamente inviato da warcomeb
non riesco a capire cosa significano quegli 0 e quelle u!!
unsigned
http://www.cs.mun.ca/~michael/c/constants.html
Integer constants can also be suffixed with a U (or u) or L (or l), which is used to indicate that the constant is unsigned or long, respectively. These suffixes may be combined. E.g., 1L is a long integer constant with the value 1, 0xffffffffUL and 123lu are unsigned long integer constants, and 123u is an unsigned integer constant.