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Program without main()
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Is it possible to print anything on screen in C or C++ without using main().If yes please explain how?
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Join Date: Mar 2008
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main() is the start of any C++ application, why do you need to do it without it ?
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Originally Posted by williamhemswort 
main() is the start of any C++ application, why do you need to do it without it ?
Although none was successful
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Join Date: Dec 2005
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Because it's a frequent teaser question which some tutors think are useful in some way.
Like for example printing without using a ; or making the program print it's source code or some other dumb trick.
Like for example printing without using a ; or making the program print it's source code or some other dumb trick.
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>>Is it possible to print anything on screen in C or C++ without using main().
Yes -- write a MS-Windows win32 api program which uses WinMain() instead of main(). Or use VC++ 2008 and it will generate a console program that starts with _tmain().
Yes -- write a MS-Windows win32 api program which uses WinMain() instead of main(). Or use VC++ 2008 and it will generate a console program that starts with _tmain().
Don't PM me with questions -- you might get a nasty PM in response. If you have a question then post it in one of the forums.
Thanks very much for your reply.But please I need some more help or atleast some hints as I dont know how to create a MS-Windows win32 api program which uses WinMain() instead of main(). I am new at programming . So please help
>So please help
Try searching for WinMain on www.google.com. Seriously, it's not that hard to do a little bit of research and come up with something. We tend not to take kindly to willfully clueless people.
Try searching for WinMain on www.google.com. Seriously, it's not that hard to do a little bit of research and come up with something. We tend not to take kindly to willfully clueless people.
I'm here to prove you wrong.
Every ISO standard C/C++ program must have a main(). Windows, other graphic environments, and many embedded systems have a non-standard environment and may not need a main().
So, the answer is: in ISO Standard C/C++, you cannot print anything without having a main() function. If you are talking about a non-standard environment, then the answer is it depends on the environment.
So, the answer is: in ISO Standard C/C++, you cannot print anything without having a main() function. If you are talking about a non-standard environment, then the answer is it depends on the environment.
>So, the answer is: in ISO Standard C/C++, you cannot
>print anything without having a main() function.
Unless you're on a freestanding implementation.
>print anything without having a main() function.
Unless you're on a freestanding implementation.
I'm here to prove you wrong.
Ok the question asked is never print anything without main() function. The question asked is without anything in main function and it is possible(I know it because i myself have asked this question many times). You can do just about anything without anything inside main() function. The answer is C++ -> class -> global object. Try it and you'll see.
Last edited by abhishekp; May 26th, 2009 at 11:35 am.
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