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Programming > C++ Moderated > Re: throw()
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Re: throw()

by Anthony Williams <anthony_w.geo@[EMAIL PROTECTED] > Apr 29, 2008 at 12:43 PM

Trups <Samant.Trupti@[EMAIL PROTECTED]
> writes:

>   bool CControlDrvInstance::IsRebootRequired() const throw()

> In this code what is throw() do?  I just have slight knowledge that is
> a exception handler but how does it work.

Here, throw() is an /exception specification/. It means that when you call
IsRebootRequired(), no exceptions will escape into your code. It does
*not*
guarantee that IsRebootRequired won't throw any exceptions though, just
that
if it does, it will terminate the application before you can say
"unhandled
exception".

> If I have this in my code do I need to include "try catch" block?  If
> yes why?

You don't need a try/catch block in the code that *calls*
IsRebootRequired,
since no exceptions can escape from it. However, you might want a
try/catch
block *inside* IsRebootRequired if it calls any functions that can
themselves
throw (unless you want your application to terminate in those cases).

Anthony
-- 
Anthony Williams            | Just Software Solutions Ltd
Custom Software Development | http://www.justsoftwaresolutions.co.uk
Registered in England, Company Number 5478976.
Registered Office: 15 Carrallack Mews, St Just, Cornwall, TR19 7UL

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for info about ]
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 4 Posts in Topic:
throw()
Trups <Samant.Trupti@[  2008-04-29 10:43:21 
Re: throw()
Michael Aaron Safyan <  2008-04-29 12:13:39 
Re: throw()
ThosRTanner <ttanner2@  2008-04-29 12:13:38 
Re: throw()
Anthony Williams <anth  2008-04-29 12:43:21 

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tan12V112 Sat Jul 19 19:51:31 CDT 2008.