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Re: [Qt-interest] How to save the content in tree structure to file

Subject: Re: [Qt-interest] How to save the content in tree structure to file
From: <>
Date: Tue, 4 May 2010 16:11:03 +0200
Ramesh wrote on Tuesday, May 04, 2010 11:40 AM:

> But in tree hierarchy, I need the key value pairs.. I need to know
> which one is parent and child.. 

You want to learn about "marshalling/unmarshalling" (aka "serialisation") of 
data. Read and study a good book about data structures or start here: 
http://en.wikipedia.org/wiki/Serialization. This is a very generic and basic 
concept in computer science and has nothing to do with Qt. Qt /does/ provide 
you the means of implementing that however (such as the mentioned QDataStream, 
for instance, which takes care of the endianess problem).

This should give you the solution, too: 
http://stackoverflow.com/questions/337868/want-to-save-binary-tree-to-disk-for-20-questions-game

Cheers, Oliver
-- 
Oliver Knoll
Dipl. Informatik-Ing. ETH
COMIT AG - ++41 79 520 95 22
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