Hello, you have to include the header file where you declared your class you want to use everywhere you plan to use that class. This is needed to make the class known to your application.

It would be (more) productive if you provide the actual compiler /linker output. It is kind of difficult to guess from the information you supplied. P.S. Before linking go to ProgectSettings->Link->Customize and check "Print process messages" box

thank you

You do it with system calls. Basically a system call is a "software interrupt" that get fired off from a user process, which is intercepted by the kernel of the OS to do work on behalf of the user. What OS? Google[^] "The greatest danger to humanity is humanity without an open mind."   - Ian Mariano - http://www.ian-space.com/

Well, the first thing that springs to mind is that you can't arbitrate access to any external shared resources with this method e.g. shared RAM. However, the use of something like a Semaphore in the context of a multi-processor kernel would allow this. In general, it is always best to think twice about disabling interrupts to implement mutual exlusion since any time spent in this state will increase interrupt latency - which may not be desirable. Phil

<no_homework_rant> The purpose of this forum is to help answer programming questions related to Visual C++, not to find people to do your homework for you! </no_homework_rant> Software Zen: delete this;

Watch that line! You've got a ; (semicolon) right after. You'll be in an endless loop, and Free will never get set to FALSE: while (TRUE == Free) { Free = FALSE; } Seems redundant, but I explicitly test for TRUE because who knows what magic numbers (#defined) mean.;P -- ian http://www.ian-space.com/

Number 2 Regards, Brian Dela :-)

Exactly :-D -Dominik

thanks for the tip, Hugo! It's quite usefull and make so much sense :)

Probably lots of time is lost in finding a chunk of the wanted size. This used to be a known problem in C run time libraries, that's why many people wrote their own memory management module. A good idea is to prepare 'pools' of predefined sizes (e.g. multiples of 8) and manage lists of vectors in each of the pools. If your application then requests e.g. 15 bytes, you round it up to the next multiple of 8 (16 in this case) and then go to the pool of 16 bytes. If it's empty, you allocate space for e.g. 10 chunks of 16 bytes. The next time you need 16 bytes (>9, <=16), it will be much faster. Of course you need to foresee additional list-pointers in your vector of 10 chunks of 16 bytes to store information about which chunk is already handed out to the application, which one is free, what the size is, ... Enjoy life, this is not a rehearsal !!!

Those are hexadecimal numbers, base 16. That is what the 0x prefix means. Each digit can be 0-9 or a-f, where a-f represent decimal 10-15. So 3223d8 is less than 323118. --Mike-- "I'd rather you just give me a fish today, because even if you teach me how to fish, I won't do it. I'm lazy." -- Nish Just released - 1ClickPicGrabber - Grab & organize pictures from your favorite web pages, with 1 click! My really out-of-date homepage Sonork-100.19012 Acid_Helm

Excellent answer! It explains everything !!! Thank you very much!!!! I really appreciate it!!!

You may have problems mixing cin/cout and gets/printf. For console hacks, I use gets/printf. /ravi Let's put "civil" back in "civilization" http://www.ravib.com ravib@ravib.com