Function: REQLUN Purpose: This routine centralizes the use of FORTRAN logical unit numbers in a task. It reserves a logical unit number. Category: FILES File: reqlun.c Author: K.G. Begeman Use: CALL REQLUN( LUN ) Input/Output INTEGER LUN If zero, REQLUN returns a free logical unit number, if positive REQLUN tries to reserve that logical unit number if possible. All other values will cause a fatal error. Related Docs: rellun.dc3 Updates: Aug 30, 1990: KGB, document created.