Why doesn't D allow throw statement without arguments? In C++ it rethrows the exception being processed, what's bad in it?

"Pavel Minayev" <evilone@omen.ru> wrote in message news:a6mlkb$1ada$1@digitaldaemon.com...
> Why doesn't D allow throw statement without arguments? In C++ it rethrows the exception being processed, what's bad in it?

I just didn't think that added much of anything.

"Walter" <walter@digitalmars.com> wrote in message news:a6n1po$1fp3$1@digitaldaemon.com...

> I just didn't think that added much of anything.

Why? A very convenient feature. Besides, it allows to omit argument name in catch blocks:

    try
    {
        ...
    }
    catch (OutOfMemory)
    {
        // do something useful here
        throw;
    }

Pavel Minayev wrote:

> "Walter" <walter@digitalmars.com> wrote in message news:a6n1po$1fp3$1@digitaldaemon.com...
>
> > I just didn't think that added much of anything.
>
> Why? A very convenient feature. Besides, it allows to omit argument name in catch blocks:
>
>     try
>     {
>         ...
>     }
>     catch (OutOfMemory)
>     {
>         // do something useful here
>         throw;
>     }

It's also useful for reporting errors of unrecognized exceptions:

try
{
    ...
}
catch(...)
{
    printf("error in myfunc(): ");
    throw;
};

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"Russ Lewis" <spamhole-2001-07-16@deming-os.org> wrote in message news:3C8F83A7.6B5C1214@deming-os.org...
> Pavel Minayev wrote:
>
> > "Walter" <walter@digitalmars.com> wrote in message news:a6n1po$1fp3$1@digitaldaemon.com...
> >
> > > I just didn't think that added much of anything.
> >
> > Why? A very convenient feature. Besides, it allows to omit argument name in catch blocks:
> >
> >     try
> >     {
> >         ...
> >     }
> >     catch (OutOfMemory)
> >     {
> >         // do something useful here
> >         throw;
> >     }
>
> It's also useful for reporting errors of unrecognized exceptions:
>
> try
> {
>     ...
> }
> catch(...)
> {
>     printf("error in myfunc(): ");
>     throw;
> };

Just use:
    catch(Object o)
    {
        ...
        throw o;
    }

"Walter" <walter@digitalmars.com> wrote in message news:a6o83v$208d$1@digitaldaemon.com...

> Just use:
>     catch(Object o)
>     {
>         ...
>         throw o;
>     }
>

Yes, I remember that only objects can be thrown in D.
Yet, "throw;" seems to be a convenient feature to me. Something that can
be accomplished by other means, but just makes your life a bit easier.