fileno(3F)
NAME
fileno − return a unit’s UNIX file descriptor number
SYNOPSIS
integer function fileno (unit)
integer unit
DESCRIPTION
Returns the UNIX file descriptor associated with unit. fileno must be called after the unit is opened. If the unit is not open, fileno returns -1.
FILES
/usr/lib/libhI77.a
SEE ALSO
NOTES
When compiling source with the -Qocs option, an explicit underscore needs to be added to the end of the routine name.
CX/UX Hf77 Fortran Reference Manual