4.5.4 Input/Output Constructs

• Unsigned integers can be read and written using the I, B, O, and Z edit descriptors.

• They can also be read and written using list-directed and namelist I/O. The written form of an unsigned integer under list-directed or namelist I/O is the same as is used for positive signed integers.

• Unsigned integers can also be read or written using unformatted I/O.