Re: throw without try or catch block

From:
herhighness <arti.yadav@gmail.com>
Newsgroups:
comp.lang.c++.moderated
Date:
Thu, 18 Jun 2009 07:28:32 CST
Message-ID:
<8d15abd6-ec23-43ab-ae31-f5d3c57b0cdf@g20g2000vba.googlegroups.com>
On Jun 16, 10:50 pm, Matthias Berndt <matthias_ber...@gmx.de> wrote:

1. can you throw without a try/catch block - is this legal?


Of course, that's the point. Otherwise, there would hardly be a
difference between an exception and a simple goto statement.
2. if you can, why am I getting a warning at those throw statements.

How are we supposed to know? You didn't tell us what the warning says.


{ quoted banner removed. DON'T quote extraneous material. tia., -mod }

I did tell,

The warning says, - "Will never be executed "

Another example is a place like this...

if (ret==NULL)
   {
       throw new std::runtime_error("Could not start/reset timer"); <--
why?

   }

The fact that I am getting a warning("Will never be executed") at
throw statement , implies that compiler is not optimizing away the if
check, because had that been the case , I would have gotten the
warning at the opening braces {

Is my reasoning right?

How can I get rid of this warning, while preserving the original code.

Thanks,

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