Project Organization and efficient use of memory

I have a good foundation in programming and am currently working on a large win32 program complete with user interface, etc.  That said, my code is very unorganized and (my guess would be) inefficient as I am a self taught programmer.  I can always get things to work, but usually it usually involves creating large numbers of global variables.  Where can I learn to be more efficient with memory use and how to use object oriented programing more effectively?  I would prefer a free source such as an interent tutorial, but book titles would also be appreciated.

Thanks
EM
eamarksAsked:
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sin_Commented:
hi,
You are facing a quite general problem since you started your programming with C.
C++ gives you the objects, which are easy to use and organize.

You asked about the global variables.  C++  doen't have much of extern variables. Instead, it prefers making a class variable as static.

If you want the tutorials' links, I would suggest you to have a look at google with search params as "C vs. C++". You can also read "Design Patterns" by GOF.

If you have any specific questions , please ask.

-sin
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HoegjeCommented:
And maybe you could take a look at this site, to download a free electronic version of Bruce Eckel's book(s) Thinking in C++ (and Thinking in Patterns if needed)

http://mindview.net/Books/DownloadSites
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MattWareCommented:
Absolutely grab the Design Patterns book, but I also recommend ANY book by Booch, Jacobsen, Rumbaugh, and Krutchen (yes, the rational team).  Specifically:

Object-Oriented Modeling and Design by James R Rumbaugh
Object-Oriented Analysis and Design with Applications (2nd Edition) by Grady Booch

If your issue is trying to organize your software better - both at the architectural AND at the coding levels - you need to focus more on design analysis than coding practices.  Iterative development strategies prevent you from making major design decisions once you've passed the coding "point of no return" where you are unable to spend the time on a different design.  Divide your project into small isolated components and begin the design and coding of the most difficult first.  This will help force out design issues before you've already invested and committed a large amount of time down a path you took before you really were able to see the whole problem.  Also, keeps you from having to throw in hacks like globally scoped variables to solve problems that would have been more cleanly dealt with iterations.

As one who also was a self-taught (and not well-organized) programmer and who now works as the chief software architect for a telecom company, I would advise strongly that you avoid looking to solve problems with your C++ and instead focusing on solving your problems with good OO design.  You'll be amazed when you begin to reimplement the same design again and again to solve common problems efficiently regardless of the platform you may be operating on.

Finally - get a CASE tool.  A model is anything that makes a complicated problem simple.  UML design documents not only allow me to organize our systems before coding begins, it also allows us to quickly and easily support (god forbid bugs sneak through ;P) as well as put us in a position to easily locate what needs to change for version 2.

Cheers.
--M
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