Somu wrote:
Well, now i know something more. Can't we treat references as pointers?
In some cases yes. Pointers point to a memory location, references point to a variable. You can do arithmetic with pointers but not with references.
We use link list in C for the reason that an array needs continuous memory locations like 1 2 3 4 5 6 .. And when the size is big, it may fail. So, we use link list. And pushing things into a C array is not allowed. So we do this by linked list.
In C traversing an array and a linked list are both O(n). You use a linked list if you want to insert and delete elements at any location. Linked lists also use more memory because you have to store a pointer with every element of the list (or two if you are using a doubly linked list.)
Does perl compiler use this link list concept and keeps it hidden from us?
I haven't read the source code but it probably does somewhere. John -- Perl isn't a toolbox, but a small machine shop where you can special-order certain sorts of tools at low cost and in short order. -- Larry Wall -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/
