Re: Which exception for a buffer overrun?

From	"Fred. Zwarts" <F.Zwarts@KVI.nl>
Newsgroups	comp.lang.c++
Subject	Re: Which exception for a buffer overrun?
Date	2019-10-15 13:09 +0200
Organization	Aioe.org NNTP Server
Message-ID	<qo49cm$1gcl$1@gioia.aioe.org> (permalink)
References	<3cf9a0eb-088d-4c7f-903c-d0d40a9e1a8e@googlegroups.com> <qo48hb$nfp$1@dont-email.me>

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Op 15.okt..2019 om 12:54 schreef Paavo Helde:
> On 15.10.2019 13:00, Frederick Gotham wrote:
>>
>> Do you use out_of_range when there's a buffer overrun? It seems to be 
>> the closest
> 
> A buffer overrun should be considered a bug in the program and should be 
> dealt with by abort() or similar, not by an exception. If an exception 
> is thrown, it should be a "fatal" one, e.g. InternalFatalError, causing 
> the error to be prominently logged/reported so it can be forwarded to 
> the program maintainer for fixing, and the program terminated or at 
> least returned the the main GUI/UI loop.
> 
> There is no point in throwing a special exception like out_of_range 
> because the calling code has no way to fix its code to pass the correct 
> index (if it could do that, it could have passed the correct index the 
> first time).
> 

Whether a buffer overrun is fatal depends on the circumstances. E.g., 
when a web server receives a request from a client that would cause a 
buffer overrun and the server detects it in time, then there is no 
reason to abort the web server. It could throw an exception to trigger 
the error handling which could e.g., close the connection with the client.

Thread

Which exception for a buffer overrun? Frederick Gotham <cauldwell.thomas@gmail.com> - 2019-10-15 03:00 -0700
  Re:Which exception for a buffer overrun? melzzzzz <mel@melzzzzz.com> - 2019-10-15 12:52 +0200
    Re: Re:Which exception for a buffer overrun? queequeg@trust.no1 (Queequeg) - 2019-10-16 12:52 +0000
      Re: Re:Which exception for a buffer overrun? melzzzzz <mel@melzzzzz.com> - 2019-10-16 18:29 +0200
  Re: Which exception for a buffer overrun? Paavo Helde <myfirstname@osa.pri.ee> - 2019-10-15 13:54 +0300
    Re: Which exception for a buffer overrun? Frederick Gotham <cauldwell.thomas@gmail.com> - 2019-10-15 04:08 -0700
      Re: Which exception for a buffer overrun? David Brown <david.brown@hesbynett.no> - 2019-10-15 13:57 +0200
        Re: Which exception for a buffer overrun? Soviet_Mario <SovietMario@CCCP.MIR> - 2019-10-15 23:59 +0200
          Re: Which exception for a buffer overrun? scott@slp53.sl.home (Scott Lurndal) - 2019-10-15 22:13 +0000
            Re: Which exception for a buffer overrun? Soviet_Mario <SovietMario@CCCP.MIR> - 2019-10-16 15:04 +0200
          Re: Which exception for a buffer overrun? Paavo Helde <myfirstname@osa.pri.ee> - 2019-10-16 07:57 +0300
            Re: Which exception for a buffer overrun? Soviet_Mario <SovietMario@CCCP.MIR> - 2019-10-16 15:05 +0200
            Re: Which exception for a buffer overrun? Keith Thompson <kst-u@mib.org> - 2019-10-16 15:34 -0700
          Re: Which exception for a buffer overrun? David Brown <david.brown@hesbynett.no> - 2019-10-16 10:16 +0200
            Re: Which exception for a buffer overrun? Öö Tiib <ootiib@hot.ee> - 2019-10-16 05:54 -0700
              Re: Which exception for a buffer overrun? David Brown <david.brown@hesbynett.no> - 2019-10-16 16:12 +0200
                Re: Which exception for a buffer overrun? Soviet_Mario <SovietMario@CCCP.MIR> - 2019-10-16 20:45 +0200
                Re: Which exception for a buffer overrun? Öö Tiib <ootiib@hot.ee> - 2019-10-17 06:34 -0700
                Re: Which exception for a buffer overrun? David Brown <david.brown@hesbynett.no> - 2019-10-17 16:34 +0200
            Re: Which exception for a buffer overrun? Ian Collins <ian-news@hotmail.com> - 2019-10-17 08:15 +1300
              Re: Which exception for a buffer overrun? David Brown <david.brown@hesbynett.no> - 2019-10-16 23:00 +0200
                Re: Which exception for a buffer overrun? Ian Collins <ian-news@hotmail.com> - 2019-10-17 10:36 +1300
                Re: Which exception for a buffer overrun? David Brown <david.brown@hesbynett.no> - 2019-10-17 10:14 +0200
                Re: Which exception for a buffer overrun? Daniel <danielaparker@gmail.com> - 2019-10-16 20:06 -0700
            Re: Which exception for a buffer overrun? Bonita Montero <Bonita.Montero@gmail.com> - 2019-10-18 09:45 +0200
        Re: Which exception for a buffer overrun? Bonita Montero <Bonita.Montero@gmail.com> - 2019-10-17 21:22 +0200
      Re: Which exception for a buffer overrun? Paavo Helde <myfirstname@osa.pri.ee> - 2019-10-15 17:48 +0300
    Re: Which exception for a buffer overrun? "Fred. Zwarts" <F.Zwarts@KVI.nl> - 2019-10-15 13:09 +0200
      Re: Which exception for a buffer overrun? David Brown <david.brown@hesbynett.no> - 2019-10-15 13:35 +0200
        Re: Which exception for a buffer overrun? scott@slp53.sl.home (Scott Lurndal) - 2019-10-15 13:30 +0000
      Re: Which exception for a buffer overrun? melzzzzz <mel@melzzzzz.com> - 2019-10-15 13:49 +0200
        Re: Which exception for a buffer overrun? David Brown <david.brown@hesbynett.no> - 2019-10-15 13:59 +0200
      Re: Which exception for a buffer overrun? Jorgen Grahn <grahn+nntp@snipabacken.se> - 2019-10-15 14:48 +0000
        Re: Which exception for a buffer overrun? Paavo Helde <myfirstname@osa.pri.ee> - 2019-10-15 18:37 +0300
          Re: Which exception for a buffer overrun? melzzzzz <mel@melzzzzz.com> - 2019-10-15 18:48 +0200
      Re: Which exception for a buffer overrun? queequeg@trust.no1 (Queequeg) - 2019-10-16 13:00 +0000
    Re: Which exception for a buffer overrun? Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2019-10-15 18:21 +0100
      Re: Which exception for a buffer overrun? Melzzzzz <Melzzzzz@zzzzz.com> - 2019-10-15 20:32 +0000
        Re: Which exception for a buffer overrun? Jorgen Grahn <grahn+nntp@snipabacken.se> - 2019-10-16 06:20 +0000
    Re: Which exception for a buffer overrun? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2019-10-16 14:43 -0700
  Re: Which exception for a buffer overrun? Jorgen Grahn <grahn+nntp@snipabacken.se> - 2019-10-15 11:12 +0000
  Re: Which exception for a buffer overrun? Öö Tiib <ootiib@hot.ee> - 2019-10-15 13:44 -0700
    Re: Which exception for a buffer overrun? Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2019-10-15 22:43 +0100
      Re: Which exception for a buffer overrun? Öö Tiib <ootiib@hot.ee> - 2019-10-16 00:01 -0700
        Re: Which exception for a buffer overrun? Jorgen Grahn <grahn+nntp@snipabacken.se> - 2019-10-16 19:02 +0000
          Re: Which exception for a buffer overrun? Öö Tiib <ootiib@hot.ee> - 2019-10-16 15:22 -0700
            Re: Which exception for a buffer overrun? Mike Terry <news.dead.person.stones@darjeeling.plus.com> - 2019-10-17 03:31 +0100
              Re: Which exception for a buffer overrun? Ian Collins <ian-news@hotmail.com> - 2019-10-17 15:35 +1300
                Re: Which exception for a buffer overrun? David Brown <david.brown@hesbynett.no> - 2019-10-17 10:17 +0200
            Re: Which exception for a buffer overrun? Jorgen Grahn <grahn+nntp@snipabacken.se> - 2019-10-20 22:18 +0000
              Re: Which exception for a buffer overrun? Öö Tiib <ootiib@hot.ee> - 2019-10-21 04:06 -0700

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