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| Author |
Heterogenous array
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| Aditi Gupta 2006-01-10, 4:02 am |
| Hello Everybody,
A very happy new year to all of you.
Well, I'm trying to create a 2D array in which the 1st array is completely
numeric and the other array is a combination of numbers and text.
If I write it as :
@aoa = ([0..5], [1,2,undef, 3,4]);
then the program accepts this array of array, but if I write it as (I need
the following form):
@aoa = ([0..5], \@values);
where @values = (1, 2, undef, 3, 4);
then the program does not accept it.
Is there a provision in Perl to define heterogenous arrays? Please help!
Best Wishes,
Aditi
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| Charles K. Clarkson 2006-01-10, 4:02 am |
| Aditi Gupta <mailto:aditi9783@gmail.com> wrote:
: @aoa = ([0..5], \@values);
: where @values = (1, 2, undef, 3, 4);
: then the program does not accept it.
That works just fine for me. What do you mean by
"the program does not accept it"?
#!/usr/bin/perl
use strict;
use warnings;
use Data::Dumper 'Dumper';
my @values = (1, 2, undef, 3, 4);
my @aoa = ([0..5], \@values);
print Dumper \@aoa;
__END__
HTH,
Charles K. Clarkson
--
Mobile Homes Specialist
254 968-8328
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| Aditi Gupta 2006-01-10, 4:02 am |
| Hello,
The error message "argument "1,2,undef,3,4" isn't numeric" was being
displayed. But with Data Dumper it is working.
Thanks:-)
On 1/2/06, Charles K. Clarkson <cclarkson@htcomp.net> wrote:
>
> Aditi Gupta <mailto:aditi9783@gmail.com> wrote:
>
> : @aoa = ([0..5], \@values);
> : where @values = (1, 2, undef, 3, 4);
> : then the program does not accept it.
>
> That works just fine for me. What do you mean by
> "the program does not accept it"?
>
> #!/usr/bin/perl
>
> use strict;
> use warnings;
> use Data::Dumper 'Dumper';
>
> my @values = (1, 2, undef, 3, 4);
> my @aoa = ([0..5], \@values);
>
> print Dumper \@aoa;
>
> __END__
>
>
> HTH,
>
> Charles K. Clarkson
> --
> Mobile Homes Specialist
> 254 968-8328
>
>
>
> --
> To unsubscribe, e-mail: beginners-unsubscribe@perl.org
> For additional commands, e-mail: beginners-help@perl.org
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>
>
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| Xavier Noria 2006-01-10, 4:02 am |
| On Jan 2, 2006, at 12:53, Aditi Gupta wrote:
> The error message "argument "1,2,undef,3,4" isn't numeric" was being
> displayed. But with Data Dumper it is working.
That message is a warning, your code was probably doing some math
with something that didn't look like a number. From your message
looks like your code was treating the very string "1,2,undef,3,4" as
a number. That smells like a bug.
Additionally, I wanted to comment the subject of the post suggests
you think 1 and "1", and undef are "heterogeneous" data. Arrays in
Perl are _homogeneous_ indeed, they can only store scalars.
-- fxn
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