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Programming > Fortran > Re: Avoided "se...
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Re: Avoided "set but never used" warnings for dummy variable reads

by Dan Nagle <dannagle@[EMAIL PROTECTED] > May 1, 2008 at 10:57 PM

Hello,

On 2008-05-01 16:29:55 -0400, Bil Kleb <Bil.Kleb@[EMAIL PROTECTED]
> said:

> 
>    integer :: nblocks_dum  ! position holder for read
> 
>    [..]
> 
>    read(8) nblocks_dum, other, useful, data
> 
> due to reading files we have no control over.  As we don't
> need nblocks_dum, this produces a "set but never used"
> warning for nblocks_dum.

You might try

Tabbing past the input field, if the format has a specified width.
( i10, 3e20.10) --> ( 10X, 4e20.10)
(Obviously, this fails with list-directed i/o,
where there's no set width.)

or
Read the line into a character string, remove the offending field,
and use an internal read to get the rest.
read( 8, '( a)') line_from_file
line_from_file = line_from_file( 11: )
read( line_from_file, '( some format)') other, useful, data

or
(As Richard suggested) put the variable in common or a module,
or passing it to an very (read: 'separately compiled') external procedure.

call eat_dum( nblocks_dum)  ! who knows what evil lurks in eat_dum() ?

HTH

-- 
Cheers!

Dan Nagle
 




 16 Posts in Topic:
Avoided "set but never used" warnings for dummy variable reads
Bil Kleb <Bil.Kleb@[EM  2008-05-01 16:29:55 
Re: Avoided "set but never used" warnings for dummy variable rea
Jan Gerrit Kootstra <j  2008-05-01 22:36:52 
Re: Avoided "set but never used" warnings for dummy variable rea
Bil Kleb <Bil.Kleb@[EM  2008-05-01 20:34:04 
Re: Avoided "set but never used" warnings for dummy variable rea
nospam@[EMAIL PROTECTED]   2008-05-01 13:48:19 
Re: Avoided "set but never used" warnings for dummy variable rea
Bil Kleb <Bil.Kleb@[EM  2008-05-01 20:41:58 
Re: Avoided "set but never used" warnings for dummy variable rea
glen herrmannsfeldt <g  2008-05-01 13:31:25 
Re: Avoided "set but never used" warnings for dummy variable rea
Bil Kleb <Bil.Kleb@[EM  2008-05-01 20:38:52 
Re: Avoided "set but never used" warnings for dummy variable rea
John <gh14tq5@[EMAIL P  2008-05-02 11:15:03 
Re: Avoided "set but never used" warnings for dummy variable rea
Dick Hendrickson <dick  2008-05-02 16:24:44 
Re: Avoided "set but never used" warnings for dummy variable rea
Dan Nagle <dannagle@[E  2008-05-01 22:57:56 
Re: Avoided "set but never used" warnings for dummy variable rea
glen herrmannsfeldt <g  2008-05-01 15:54:56 
Re: Avoided "set but never used" warnings for dummy variable rea
Bil Kleb <Bil.Kleb@[EM  2008-05-01 20:56:01 
Re: Avoided "set but never used" warnings for dummy variable rea
nospam@[EMAIL PROTECTED]   2008-05-01 18:11:33 
Re: Avoided "set but never used" warnings for dummy variable rea
Gordon Sande <g.sande@  2008-05-02 13:02:08 
Re: Avoided "set but never used" warnings for dummy variable rea
David Flower <DavJFlow  2008-05-03 03:49:34 
Re: Avoided "set but never used" warnings for dummy variable rea
Bil Kleb <Bil.Kleb@[EM  2008-05-03 07:07:49 

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tan12V112 Mon Oct 13 3:10:55 CDT 2008.