in reply to Linked list in Perl

Just use an array, and splice to add the new element e.g. to add something after position 5: 
+% perl -de0
Loading DB routines from perl5db.pl version 1.32
Editor support available.

Enter h or `h h' for help, or `man perldebug' for more help.

main::(-e:1):   0
  DB<1> @ar = 'a' .. 'h'

  DB<2> x \@ar
0  ARRAY(0x288c320)
   0  'a'
   1  'b'
   2  'c'
   3  'd'
   4  'e'
   5  'f'
   6  'g'
   7  'h'
  DB<3> @slice = @ar[6 .. -1]

  DB<4> splice @ar, 6, @slice, 11, @slice

  DB<5> x \@ar
0  ARRAY(0x288c320)
   0  'a'
   1  'b'
   2  'c'
   3  'd'
   4  'e'
   5  'f'
   6  11
   7  'g'
   8  'h'
  DB<6>

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Also see How do I handle linked lists?

Replies are listed 'Best First'.
Re^2: Linked list in Perl
by Anonymous Monk on Sep 28, 2012 at 12:46 UTC

    To insert , use length zero 

     perl -deep

oading DB routines from perl5db.pl version 1.33
ditor support available.

nter h or `h h' for help, or `perldoc perldebug' for more help.

ain::(-e:1):   ep
 DB<1> @f=a..f;

 DB<2> x\@f
  ARRAY(0xe2b154)
  0  'a'
  1  'b'
  2  'c'
  3  'd'
  4  'e'
  5  'f'
 DB<3> splice @f, 3,0, P;

 DB<4> x\@f
  ARRAY(0xe2b154)
  0  'a'
  1  'b'
  2  'c'
  3  'P'
  4  'd'
  5  'e'
  6  'f'
 DB<5> q

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