2022-04-07
Version 3.3.0
When finding free unit numbers only search up to huge(0)-1.

2009-12-17
Version 3.2.0
Minor changes stay within 80 characters per line.

2009-07-29
Version 3.1.0
Minor changes made to avoid references to undefined variables.

2007-12-07
Version 3.0.0
Argument inactive removed from OF01_read and argument retain replaced by
discard.

2007-11-22
Version 2.0.0
Logical argument active replaced by integer(long) argument inactive.

2007-11-13
Version 1.1.0
Subroutines of01*copy moved into the module and removed the separate data module.

2007-10-05
Version 1.0.0
Original Version