d3 - How to check if variable is a filevariable ?

#11

Mike Preece wrote:

Quote:

Tony Gravagno wrote:

"Mike Preece" wrote:
What was that film?

Huh?

It was on again today.

I'm sure we've done this before - even though I can't find the previous
thread in the archives with a google search. It went on with your
question/challenge and culminated with you suggesting an alternative
work-around - a better one, actually - although WhatHaveIGot did work.

Mike.

I believe WhatHaveIGot will work on *nix and on some Windows vme files
but I can't check this right now as my D3 box is on a ship somewhere
between Aus and the UK.

Mike.

PS. Apologies for the extremely cryptic reference to Groundhog Day.

#12

Mike Preece wrote:

Quote:

as my D3 box is on a ship somewhere between Aus and the UK.

Mike.

Not on the MSC Napoli i hope

#13

GVP wrote:

Quote:

Hi

Any empty file "MyDummyFile" should be present.

In PickBasic
* mvar is variable for test

tmpmvar=mvar

open "MyDummyFile" to tmpFileVar
close tmpFileVar

dummyFOFId=oconv("","u90")
close tmpmvar

mvarIsFileVar=0
IF dummyFOFId # oconv("","u90") THEN mvarIsFileVar=1

#14

Additional description. This method based on CLOSE feature (tested on
D3 linux). "Close" can work with string and andefined variables without
error.
In this case it is enough make a copy of variable and then use Close
and oconv("","u90")

* TestVarIsFileVar(mvar , remvarIsFileVar)
tmpmvar=mvar

open "MyDummyFile" to tmpFileVar
close tmpFileVar

dummyFOFId=oconv("","u90")
close tmpmvar

mvarIsFileVar=0
IF dummyFOFId # oconv("","u90") THEN mvarIsFileVar=1
*return

Regards,
Grigory

#15

On Jan 25, 1:52 am, "GVP" <g... (AT) infotools (DOT) ru> wrote:

Quote:

Additional description. This method based on CLOSE feature (tested on
D3 linux). "Close" can work with string and andefined variables without
error.
In this case it is enough make a copy of variable and then use Close
and oconv("","u90")

* TestVarIsFileVar(mvar , remvarIsFileVar)
tmpmvar=mvar

open "MyDummyFile" to tmpFileVar
close tmpFileVar

dummyFOFId=oconv("","u90")
close tmpmvar

mvarIsFileVar=0
IF dummyFOFId # oconv("","u90") THEN mvarIsFileVar=1
*return

Regards,
Grigory

I can't check this but maybe someone else can and report back... I
believe u90 will work with all files opened using the MD file name in
the OPEN statement on D3/*nix and vme files on D3/NT. I don't believe
it will work when dealing with fsi files on D3/NT or with files opened
using a literal string of OSFI driver and/or path instead of the Id of
a file-pointer item in the MD.

Mike.
..

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

d3 - How to check if variable is a filevariable ?

comp.databases.pick comp.databases.pick

Re: d3 - How to check if variable is a filevariable ? - 01-23-2007 , 08:54 AM

Re: d3 - How to check if variable is a filevariable ? - 01-23-2007 , 10:01 AM

Re: d3 - How to check if variable is a filevariable ? - 01-23-2007 , 04:33 PM

Re: d3 - How to check if variable is a filevariable ? - 01-24-2007 , 07:52 PM

Re: d3 - How to check if variable is a filevariable ? - 01-25-2007 , 05:37 AM