From:	"Betelgeuse" <iam@[removethis]cadvision.com>
Newsgroups:	comp.os.msdos.djgpp
References:	<0519f96f DOT 5fb31bd3 AT usw-ex0104-033 DOT remarq DOT com>
Subject:	Re: Exception Handling
Date:	Tue, 18 Jul 2000 19:31:07 -0700
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To:	djgpp AT delorie DOT com
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Hawdy pardna!

:)

I believe strcpy() requires a pre-initialized destination, i.e.,

char *exception::errorMessage;

should perhaps be

char exception::errorMessage[256];

or, have your constructor do the initialization:

exception::exception()
{
    errorMessage = new char[256];
}

exception::~exception()
{
    delete[] errorMessage;
}



There is also strdup() which might be more suited to this, for example:

exception(char *message)
{
    strcpy(errorMessage, message);
    errorMessage = strdup(message);
}

I haven't worked with exceptions as I haven't found the need yet. Anyway,
hope that helps

- Betelgeuse


"Dogansmoobs" <dogansmoobsNOdoSPAM AT hotmail DOT com DOT invalid> wrote in message
news:0519f96f DOT 5fb31bd3 AT usw-ex0104-033 DOT remarq DOT com...
> I am having a problem with exception handling.  Whenever I try
> to cathch and exception, instead of running what's in the catch
> block, it exits the program and displays Abort!!.  Is there
> something I'm missing, or doing wrong??  Here's what I'm doing:
>
> #include <iosteam>
>
> class exception
> {
>  public:
>    exception(char *message)
>    {
>     strcpy(errorMessage, message);
>    }
>
>    void display()
>    {
>     cout << errorMessage;
>    }
>
>  private:
>    char *errorMessage;
> };
>
> Then whin I want to throw an exception, I say:
>    throw exception("Error message here");
>
> and then catch it using:
>    catch (exception &e)
>
> but it never does this, it just aborts.  And yes, the code that
> produces the exception is in a try block.
>
>  - Dogansmoobs
> http://wookie.freehosting.net/
> I would call myself Duncan Blownuts, but people might think I'm
> insane.
>
>
> -----------------------------------------------------------
>
> Got questions?  Get answers over the phone at Keen.com.
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