Re: Need help with a dictionary class...

From:
"Victor Bazarov" <v.Abazarov@comAcast.net>
Newsgroups:
comp.lang.c++
Date:
Thu, 7 Jun 2007 17:06:02 -0400
Message-ID:
<f49rvr$igg$1@news.datemas.de>
SpreadTooThin wrote:

I have a dictionary that looks like:

a0,b0,c0,d0,e0
a1,b1,c1,d1,e1
...
...

Currently I consider [a,b] (Class Tag) to be the key and [c,d,e]
(Class Value) to be the value.


IOW, you have an associative array:

   K0 : V0
   K1 : V1
   ...

where Kx is a list and Vx is a list?

However I now need to use [e] as the key and [a,b,c,d] as the value.


I.e.

   Kk0 : Vv0
   ...

(same scheme), and Kkx and Vvx are also lists, right?

the dictionary class uses defines:
  std::map<Tag, Value> dictionary;
as the dictionary... (Where Tag and Values are classes)

What must I do to be able to have more than one key?


Probably, more than one dictionary...

Must I define two new classes for TagB and ValuesB and another
dictionary based on these classes?


Probably.

Multimaps seems to pop into mind.. but I don't know how to use the and
am not sure if they are part of the stl...


There is 'std::multimap', but it is like a 'map' with mutliple keys
allowed. I don't see how it's applicable here.

V
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