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Re: How best to implement a hash table in Mathematica

• To: mathgroup at smc.vnet.net
• Subject: [mg125145] Re: How best to implement a hash table in Mathematica
• From: Leonid Shifrin <lshifr at gmail.com>
• Date: Fri, 24 Feb 2012 00:58:39 -0500 (EST)
• Delivered-to: l-mathgroup@mail-archive0.wolfram.com
• References: <jho21j$5sb$1@smc.vnet.net>

Nasser,

Sorry, can't add more here. I myself learned about these functions very
recently from this post by Oleksandr Rasputinov:

http://mathematica.stackexchange.com/questions/990/struct-equivalent-in-mathematica/1029#1029

And that's pretty much all publicly available information on this, I
believe. These functions probably serve internal purposes, and so are undocumented. This is a normal practice, anyone who is willing to dig out and use undocumented functionality should accept that it is, well, undocumented.

Cheers,
Leonid




On Thu, Feb 23, 2012 at 1:49 PM, Nasser M. Abbasi <nma at 12000.org> wrote:

> On 2/22/2012 4:34 AM, Leonid Shifrin wrote:
>
> >
> > You can also use the hash table from System`Utilities`.
>
> How can one obtain documentation on these functions?
> Very Hard to use something, and even program for an API that
> is not documented.
>
> I tried
>
> ?? System`Utilities`HashTable
>
> and it all returned is
>
> Attributes[System`Utilities`HashTable]={Protected}
>
> googling did not help. Any other place to obtain documentation?
> And why are these not in the help system for Mathematica? I am
> using V 8.04
>
> thanks,
> --Nasser
>
>