Thanks for all of the help from everyone on this... I have gotten it
working, although I think I will end up cleaning things up later, as
exceptions and partially-successful construction is a pain to deal with.
Alan Pinstein
Synergy Solutions, Inc.
http://www.synsolutions.com
1-800-210-5293
>At 04:46 PM 5/5/99 -0500, Alan wrote:
>
>>I've got a constructor that does some memory allocation and creates a
>>record for the app, etc. I am now trying to add nice error handling if
>>the alloc's fail in the constructor, and I am at a loss for how to do
>>this. Is this where you use exceptions in C++?
>
>Alan,
>
>The short answer is yes. However, in some cases, you have to very careful
>on how you use exception-handling in the constructor, as you can easily
>create resource leaks. I don't want to confuse you with the details since
>you're just starting. =-) The problem is what to do when the new object
>is only "partially" constructed.
>
>One alternative is have the constructor do only things which you know
>cannot fail, and move out everything else to an initialize function,
>returns a success/error code. E.g., so you can do:
>
> CMyForm formX; // No worries here, construction always works.
>
> int error = formX.Initialize(); // Might fail, but we can check.
> if (error)
> {
> handle_error();
> }
>
>Regards,
>
>-Ade
