Re: Hashing address

From:
Ulrich Eckhardt <eckhardt@satorlaser.com>
Newsgroups:
microsoft.public.vc.language
Date:
Fri, 15 May 2009 09:38:38 +0200
Message-ID:
<uoivd6-kpr.ln1@satorlaser.homedns.org>
Jack wrote:

If I have a full list of address like this
0x00400000 => 0x00600000


Honestly: I don't know what you want to express here or how that is relevant
to your question below. I'll simply ignore that for now... ;)

 POSITION pos = this->apilist->GetHeadPosition();
 while (pos)
 {
  CApi* p = this->apilist->GetNext(pos);
  if (p->address == address)
  {
   return p;
  }
 }

I would like to do it a little bit better, just speed it up.
Is it possible to hash address to buckets?


Take a look at what 'apilist' is. I guess it is one of the MFC containers
(CList?). If so, you could perhaps just exchange it with a different
container. In particular using one that stores elements in a sorted
sequence would allow doing a binary search instead of a sequential search
as above. In C++, I would use std::set/std::map, possibly a vector that I
keep manually sorted.

Uli

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