{{keywords>wiki library source code example reference}}
===== unsigned =====
<code c>

unsigned char ch;
unsigned long int l;

unsigned char          0 to 255
unsigned int           0 to 65535
                       [or 0 to 4294967295 if '-mnoshort' is set]
unsigned short int     0 to 65535
unsigned long int      0 to 4294967295
</code>