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container for insert/delete + fast index
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Victor Bazarov
*nix forums Guru


Joined: 07 Apr 2005
Posts: 3949

PostPosted: Fri Jul 21, 2006 1:03 pm    Post subject: Re: container for insert/delete + fast index Reply with quote
ndbecker2@gmail.com wrote:
Quote:
I'm looking for an stl-style container that has good performance for
insertion and deletion of elements as well as very fast index
operation.

I'm thinking an stl::list would be good if an external index was
maintained.

I could of course write this, but I wonder if something suitable
already exists?

Nothing's perfect. If you don't need isertions or deletetions in the
middle, use 'deque'. If you do need insertion/deletions all over the
container, you're better off rolling your own indexing with 'list',
as you already mentioned. Beware, though, that 'list' is a memory hog.

As always, to judge performance you need to measure, not guess.

V
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Neal Becker
*nix forums beginner


Joined: 15 Sep 2005
Posts: 22

PostPosted: Fri Jul 21, 2006 12:57 pm    Post subject: container for insert/delete + fast index Reply with quote
I'm looking for an stl-style container that has good performance for
insertion and deletion of elements as well as very fast index
operation.

I'm thinking an stl::list would be good if an external index was
maintained.

I could of course write this, but I wonder if something suitable
already exists?
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