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Making programs remember something

 
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Making programs remember something
Pontus
14 May, 2007 - 10:26 AM
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How can i make a program somethinh without the use of files or the registry?I mean IN the exe itself
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Amadeus
RE: Making Programs Remember Something
14 May, 2007 - 10:37 AM
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g++ -o drink whiskey.cpp
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Can you specify what you're referring to? Generally speaking, to have information available to the 'program' by which I mean one instance of the program, that information has to be saved somewhere, either in a database, file, or some other method.

What information is it that you would like the program to have access to, to have saved between program runs?
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Trogdor
RE: Making Programs Remember Something
15 May, 2007 - 05:17 AM
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Some knowledge of how your favorite operating system does things would be nice.
In short:
- the user choses to start a program.
- the OS reserves some ram, loads the program from disc into ram, and starts the program.
- the program runs, possibly allocating more ram and doing things with it, doing system calls to do IO, graphics, etc.
- the program ends, the OS cleans up the memory and releases it for recycling.

Now, if you want data in that program to be persistent, there are only 2 ways.
1: you never terminate the program
2: you write the data on a persistent place (a file, database or the registry) and read it each time the program starts, and re-write it if it changes.
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Pontus
RE: Making Programs Remember Something
15 May, 2007 - 09:28 AM
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But how do they make those install files then?
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Amadeus
RE: Making Programs Remember Something
15 May, 2007 - 10:31 AM
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g++ -o drink whiskey.cpp
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If you are referring to the process by which applications are installed, these are usually created as executable files that are small programs in themselves.
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