Re: [stack] A bit more about Catenate

I'm not sure if I understand your no-garbage-collection idea properly.
How do you plan to make useful compound data structures when two
things cannot point to the same object in memory? It sounds like there
would be a lot of copying involved. If two functions want to index the
same array, will they each need a copy of that array? What about for
more complicated things, like binary trees; won't balancing require
more copying than is necessary in other languages?

Daniel Ehrenberg

On 8/16/07, Don Groves <[email protected]> wrote:
> A few more Catenate features:
>
> Dynamic typing:
> Data is typed; names are not. A name can hold any type of data.
>
> Linearity:
> Every memory cell has exactly one reference. When de-referenced, a
> cell is cleared and is immediately available for re-allocation. Thus,
> garbage collection is trivial (marking without sweeping ;-)
>
> Unicode:
> UTF8 encoding is used throughout.
>
> Syntax:
> Probably best described as a math-inspired, Lispish Joy. For example,
> here is a sample terminal session:
>
> stack: { }
> => 3
>
> stack: {3}
> => 4 *
>
> stack: {12}
> => _
>
> And a more complex one calculating the area of a circle of radius 3:
>
> stack: { }
> => 3.1459 defcon π
>
> π defined
>
> stack: { }
> => [dup *] defun ^2
>
> ^2 defined
>
> stack: { }
> => [^2 π *] defun πr^2
>
> πr^2 defined
>
> stack: { }
> => 3 πr^2
>
> stack: {28.3131 }
> => _
>
> Questions, comments, and suggestions will be gladly received,
> Don Groves
>
>
>
>
> Yahoo! Groups Links
>
>
>
>


 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/concatenative/

<*> Your email settings:
    Individual Email | Traditional

<*> To change settings online go to:
    http://groups.yahoo.com/group/concatenative/join
    (Yahoo! ID required)

<*> To change settings via email:
    mailto:[email protected] 
    mailto:[email protected]

<*> To unsubscribe from this group, send an email to:
    [email protected]

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/