Arguments for subroutine

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Hello,
I want to send array as input argument for subroutine. Please help me =
how to do this.
=20
Ex: =
ug_convert(@dr_con_list,$dataset,$datasettype,$release_statu s,$item_id,$i=
tem_revision,$local_option);
Sub convert()
{
=
local((@dr_con_list,$dataset,$datasettype,$release_status,$i tem_id,$item_=
revision,$local_option)=3D@_;
}
=20
but it is not giving correct values.
=20
Thanks && Regards=20
Karunakar Reddy B.V.=20

BSH Bosch Siemens Hausgeräte GmbH

ITD

Carl-Wery-Straße 34

81739 München

Tel.: +49 (0) 89 / 4590-3979

Fax: +49 (0) 89 / 4590-4489

e-mail: Reddy.Beri-Veera-ext@BSHG.COM

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München

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Colberg, Jean Dufour, Prof E.h. Werner Vogt

Sitz: München; Registergericht: Amtsgericht München; HRB 75534;

WEEE-Reg.-Nr. DE 57986696

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Re: Arguments for subroutine

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Beri-Veera-ext, Reddy (n.a.) wrote:
> Hello,
> I want to send array as input argument for subroutine. Please help me how to do this.
>
> Ex: ug_convert(@dr_con_list,$dataset,$datasettype,$release_statu s,$item_id,$item_revision,$local_option);
> Sub convert()
> {
> local((@dr_con_list,$dataset,$datasettype,$release_status,$i tem_id,$item_revision,$local_option)=@_;
> }
>
> but it is not giving correct values.

You need to pass a reference to the array and then dereference it within
the subroutine:

ug_convert(\@dr_con_list,$dataset,$datasettype,$release_stat us,$item_id,$item_revision,$local_option);

Sub convert()
{
my($dr_con_list,$dataset,$datasettype,$release_status,$item_ id,$item_revision,$local_option)=@_;

# then need to deference using things like:
my $first_element = $dr_con_list->[0];
foreach my $element ( @{$dr_con_list} ) {
# do something with each element of the list
}
}

HTH
Nath
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Re: Arguments for subroutine

Nathan S Haigh wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Beri-Veera-ext, Reddy (n.a.) wrote:
>
>>Hello,
>> I want to send array as input argument for subroutine. Please help me how to do this.
>>
>>Ex: ug_convert(@dr_con_list,$dataset,$datasettype,$release_statu s,$item_id,$item_revision,$local_option);
>>Sub convert()
>>{
>> local((@dr_con_list,$dataset,$datasettype,$release_status,$i tem_id,$item_revision,$local_option)=@_;
>>}
>>
>>but it is not giving correct values.
>
>
> You need to pass a reference to the array and then dereference it within
> the subroutine:

Or if you only have one array, you can just pass it as the last argument.

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RE: Arguments for subroutine

Hello,
Thanks for your help. I wrote like
$status
=ug_convert(\@dr_con_list,$dataset,$datasettype,$release_sta tus,$item_id
,$item_revision,$local_option);
Sub ug_convert()
{

my($local_con_list,$local_dataset,$local_datasettype,$local_ release_stat
us,$local_item_id,$local_item_rev,$local_option) = @_;
foreach my $element ( @{$local_con_list} )
{print "$element\n";}
}

But it is giving the error
Error: Missing $ on loop variable at
C:\UG\tceng0913\bsh\export\bin\bsh_flexcax_export_server.pl line 1300

Please help on this.

Thanks && Regards
Karunakar Reddy B.V.

-----Original Message-----
From: Nathan S Haigh [mailto:n.haigh@sheffield.ac.uk]
Sent: 01 August 2007 12:31
To: Beri-Veera-ext, Reddy (n.a.)
Cc: ActivePerl
Subject: Re: Arguments for subroutine

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Beri-Veera-ext, Reddy (n.a.) wrote:
> Hello,
> I want to send array as input argument for subroutine. Please help me
how to do this.
>
> Ex:
ug_convert(@dr_con_list,$dataset,$datasettype,$release_statu s,$item_id,$
item_revision,$local_option);
> Sub convert()
> {
>
local((@dr_con_list,$dataset,$datasettype,$release_status,$i tem_id,$item
_revision,$local_option)=@_;
> }
>
> but it is not giving correct values.

You need to pass a reference to the array and then dereference it within
the subroutine:

ug_convert(\@dr_con_list,$dataset,$datasettype,$release_stat us,$item_id,
$item_revision,$local_option);

Sub convert()
{
my($dr_con_list,$dataset,$datasettype,$release_status,$item_ id,$item_rev
ision,$local_option)=@_;

# then need to deference using things like:
my $first_element = $dr_con_list->[0];
foreach my $element ( @{$dr_con_list} ) {
# do something with each element of the list
}
}

HTH
Nath
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Re: Arguments for subroutine

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Beri-Veera-ext, Reddy (n.a.) wrote:
> Hello,
> Thanks for your help. I wrote like
> $status
> =ug_convert(\@dr_con_list,$dataset,$datasettype,$release_sta tus,$item_id
> ,$item_revision,$local_option);
> Sub ug_convert()
> {
>
> my($local_con_list,$local_dataset,$local_datasettype,$local_ release_stat
> us,$local_item_id,$local_item_rev,$local_option) = @_;
> foreach my $element ( @{$local_con_list} )
> {print "$element\n";}
> }
>
> But it is giving the error
> Error: Missing $ on loop variable at
> C:\UG\tceng0913\bsh\export\bin\bsh_flexcax_export_server.pl line 1300
>
> Please help on this.
>
> Thanks && Regards
> Karunakar Reddy B.V.
>

I don't see anything obviously wrong - are you able to supply more of
your code around line 1300 and also indicate which line is 1300.

Nath
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RE: Arguments for subroutine

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Hi Please see my sample program.
Error:Missing $ on loop variable at
C:\BSH\Flexcax_export\samples\arry_arg.pl line 11.


Thanks && Regards=20
Karunakar Reddy B.V.=20


-----Original Message-----
From: Nathan S Haigh [mailto:n.haigh@sheffield.ac.uk]=20
Sent: 01 August 2007 13:58
To: Beri-Veera-ext, Reddy (n.a.)
Cc: ActivePerl
Subject: Re: Arguments for subroutine

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Beri-Veera-ext, Reddy (n.a.) wrote:
> Hello,
> Thanks for your help. I wrote like
> $status
>
=3Dug_convert(\@dr_con_list,$dataset,$datasettype,$release_s tatus,$item_i=
d
> ,$item_revision,$local_option);=20
> Sub ug_convert()
> {
> =20
>
my($local_con_list,$local_dataset,$local_datasettype,$local_ release_stat
> us,$local_item_id,$local_item_rev,$local_option) =3D @_;
> foreach my $element ( @{$local_con_list} )
> {print "$element\n";}
> }
>=20
> But it is giving the error
> Error: Missing $ on loop variable at
> C:\UG\tceng0913\bsh\export\bin\bsh_flexcax_export_server.pl line 1300
>=20
> Please help on this.
>=20
> Thanks && Regards=20
> Karunakar Reddy B.V.=20
>=20

I don't see anything obviously wrong - are you able to supply more of
your code around line 1300 and also indicate which line is 1300.

Nath
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Re: Arguments for subroutine

Beri-Veera-ext, Reddy (n.a.) wrote:
> Hi Please see my sample program.
> Error:Missing $ on loop variable at
> C:\BSH\Flexcax_export\samples\arry_arg.pl line 11.

This gets no errors:

#!/usr/bin/perl

use strict;
use warnings;

my @dr_con_list = (1, 2, 3, 4);
my $dataset = 1;
my $datasettype = 1;
my $release_status = 1;
my $item_id = 1;
my $item_revision = 1;
my $local_option = 1;

my $status = ug_convert (\@dr_con_list, $dataset, $datasettype,
$release_status, $item_id, $item_revision, $local_option);

sub ug_convert {
my ($local_con_list, $local_dataset, $local_datasettype,
$local_release_status, $local_item_id, $local_item_rev,
$local_option) = @_;

print "entered ug_convert\n";

my $first_element = $local_con_list->[0];
print "first_element = $first_element\n";

foreach my $element (@{$local_con_list}) {
print "element=$element\n";
}

}

__END__

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Re: Arguments for subroutine

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Beri-Veera-ext, Reddy (n.a.) wrote:
> Hi Please see my sample program.
> Error:Missing $ on loop variable at
> C:\BSH\Flexcax_export\samples\arry_arg.pl line 11.
>
>
> Thanks && Regards
> Karunakar Reddy B.V.
>
>

Firstly, the script you supplied doesn't run on it's own! Ensure you
have the following at the top of your script:

use strict;
use warnings;

They will force you to use good programming practice when it comes to
scope etc. You will then need to specify values for variables you pass
to your method.


The slightly modified version of your script produces no warnings like
the one you mentioned:

#!/usr/bin/perl
use strict;
use warnings;

my @dr_con_list = (1..10);
my $dataset = 1;
my $datasettype = 1;
my $release_status = 1;
my $item_id = 1;
my $item_revision = 1;
my $local_option = 1;

my $status =
&ug_convert(\@dr_con_list,$dataset,$datasettype,$release_sta tus,$item_id,$item_revision,$local_option);

sub ug_convert
{

my($local_con_list,$local_dataset,$local_datasettype,$local_ release_status,$local_item_id,$local_item_rev,$local_option)
= @_;
print "entered in to convertion form\n";

my $first_element = $local_con_list->[0];
print "$first_element\n";
#print "the con count is $con_list_len\n";
foreach my $element ( @{$local_con_list} )
{print "$element\n";}
}
__END__


Changes I made:
1) added "use strict;" and "use warnings;" at the top of the script.
2) set the values of the method arguments to some value as you didn;t
supply any.
3) set scope of $status using "my"

Nath

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