Re: Putting the same function name in multiple modules.
- To: mathgroup at smc.vnet.net
- Subject: [mg54790] Re: Putting the same function name in multiple modules.
- From: "Jens-Peer Kuska" <kuska at informatik.uni-leipzig.de>
- Date: Wed, 2 Mar 2005 01:26:37 -0500 (EST)
- Organization: Uni Leipzig
- References: <d0154m$ovc$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hi,
set the context explicit ? Something like
Begin["`Private`"];
Global`Doit[x_FooA] := ...;
End[];
and in the second context
Begin["`Private`"];
Global`Doit[x_FooB] := ...;
End[];
Regards
Jens
"Josef Karthauser" <joe at tao.org.uk> schrieb im Newsbeitrag
news:d0154m$ovc$1 at smc.vnet.net...
>
> I'm trying to do a bit of "object orientation" with a number of modules
> and was wondering what the official way of doing it was.
>
> Imagine that I've got a couple of data types defined. Let us call them
> FooA[] and FooB[]. Each has it's own module, so that I can do something
> like:
>
> Needs["`FooA`"];
> Needs["`FooB`"];
>
> What I want is a function that can operate on both types, i.e.
>
> Doit[x_FooA] := ...
>
> and
>
> Doit[x_FooB] := ...
>
> and would like to define each of these in the relevant module.
>
> I would normally do something like:
>
> Module[... FooA ...]
>
> Doit::usage = "....";
>
> Begin["`Private`"];
> Doit[x_FooA] := ...;
> End[];
>
> and
>
> Module[... FooB ...]
>
> Doit::usage = "....";
>
> Begin["`Private`"];
> Doit[x_FooB] := ...;
> End[];
>
> Of course doing it this way each of the Doit[] functions is defined in a
> different context and so one of them gets overriden by the other.
>
> Does anyone know how I can fix things so that I can say make a FooC
> module and define a Doit[x_FooC] in it without having to change the FooA
> and FooB modules to accomodate it.
>
> Thanks,
> Joe
> --
> Josef Karthauser (joe at tao.org.uk) http://www.josef-k.net/
> FreeBSD (cvs meister, admin and hacker) http://www.uk.FreeBSD.org/
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