Hamish Whittal said:
>
> I have a reference to an array $ref_arr
>
> I want the length of the array. normally just getting the length one
> would write something along the lines of:
> $length = @#array; # Unless I am mistaken.
Close -- you want $#array instead.
>
> How do I find the length
On Fri, Aug 31, 2001 at 08:02:32PM +0530, [EMAIL PROTECTED] wrote:
> You can also use $#{$array} to get the length..
Except that is not the length, unless you've messed with $[, which you
haven't, right?
perldoc perlvar for more info on $[ - but read the whole entry.
--
Paul Johnson - [EMAIL
> "Aravindan" == Aravindan Sundaram <[EMAIL PROTECTED]> writes:
Aravindan> You can also use $#{$array} to get the length..
No, that gets the highest index. One short of the length.
Aravindan>
Aravindan> This electronic mail message is intend
On Fri, 31 Aug 2001 [EMAIL PROTECTED] wrote:
> You can also use $#{$array} to get the length..
No, that only gives you the index of the last element! You will be off by
one if you do it that way. The correct way is to put the array (or array
ref) into a scalar context, which gives the length o
You can also use $#{$array} to get the length..
Hamish
Whittal To: perl beginners
You can always do this
scalar @$ref_arr
but this will give you the number of elements not the last index as $#array
would
On Fri, Aug 31, 2001 at 01:24:53PM -0200, Hamish Whittal shaped the electrons to read:
> Hi,
>
> I have a reference to an array $ref_arr
>
> I want the length of th
> -Original Message-
> From: Brett W. McCoy [mailto:[EMAIL PROTECTED]]
> Sent: Friday, August 31, 2001 8:24 AM
> To: Hamish Whittal
> Cc: perl beginners
> Subject: Re: Getting the length of an array that is a reference...
>
>
> On Fri, 31 Aug 2001, Hamish W
On Fri, 31 Aug 2001, Hamish Whittal wrote:
> I want the length of the array. normally just getting the length one
> would write something along the lines of:
> $length = @#array; # Unless I am mistaken.
That's the incorrect way to get the length of the array anyway -- you are
only getting
you'll need to dereference it..
this would work for you:
perl -e "$ref=[qw(1 2 3)]; print scalar @$ref"
regards,
Jos Boumans
- Original Message -
From: "Hamish Whittal" <[EMAIL PROTECTED]>
To: "perl beginners" <[EMAIL PROTECTED]>
Sent: Friday, August 31, 2001 5:24 PM
Subject: Gettin
