Open/Close FZ Zebra logical Units

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| Geant 3.11  |               GEANT User's Guide              | IOPA200  ##
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Author(s) : R.Brun                                     Submitted: 01.06.83
Origin    : GEANT3                                       Revised: 20.08.87
                                  

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           |CALL GOPEN (LUN,CHOPT,LEN,IER*) |
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LUN

Logical unit number

CHOPT

Character string or variable. If CHOPT = 'I' file is an input file 'O' file is an output file 'X' file is written in Exchange mode

LEN

Maximum record length. For more details see routine FZFILE in the ZEBRA manual

IER

Error flag

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               |CALL GCLOSE (LUN,IER*) |
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LUN

Logical unit to be closed

IER

Error flag