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Groups > comp.os.os2.programmer.misc > #295

Re: Passing string pointers in a custom control-data structure == FAIL

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Alex Taylor wrote:
> On Mon, 20 Jun 2011 07:55:32 UTC, Marcel Müller <news.5.maazl@spamgourmet.com> 
> wrote:
> 
>> That's an important fact. So you most likely have some heap or stack 
>> corruption (undefined behavior from the language point of view). Almost 
>> any part of your code can throw this data bombs. Where they bang in is 
>> another question that depends on the individual memory layout.
> 
> That's my suspicion, and my worst fear... I have no idea how I could
> track that down, given the size and complexity of the code at this
> point.

Turn on debug memory management of your compiler. AFAIK VAC++ 3.08 has 
something like that. Additionally you can override the default operator 
new/delete and/or malloc/free with functions that place and check guard 
bytes before and after the allocated storage. delete/free also could 
overwrite the memory with garbage, to prevent accidental use of 
destroyed objects. Unfortunately nothing like that is available for 
dangling stack references. An option to purge the stack on leave would 
be very helpful.


Marcel

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Passing string pointers in a custom control-data structure == FAIL "Alex Taylor" <mail.me@reply.to.address> - 2011-06-17 23:08 -0500
  Re: Passing string pointers in a custom control-data structure == FAIL Marcel Müller <news.5.maazl@spamgourmet.com> - 2011-06-18 09:23 +0200
    Re: Passing string pointers in a custom control-data structure == FAIL "Alex Taylor" <mail.me@reply.to.address> - 2011-06-18 06:05 -0500
  Re: Passing string pointers in a custom control-data structure == FAIL "A.D. Fundum" <what.ever@neverm.ind> - 2011-06-18 12:14 +0200
    Re: Passing string pointers in a custom control-data structure == FAIL "Alex Taylor" <mail.me@reply.to.address> - 2011-06-18 06:03 -0500
  Re: Passing string pointers in a custom control-data structure == FAIL "Alex Taylor" <mail.me@reply.to.address> - 2011-06-18 06:10 -0500
    Re: Passing string pointers in a custom control-data structure == FAIL Marcel Müller <news.5.maazl@spamgourmet.com> - 2011-06-20 09:55 +0200
      Re: Passing string pointers in a custom control-data structure == FAIL "Alex Taylor" <mail.me@reply.to.address> - 2011-06-20 09:01 -0500
        Re: Passing string pointers in a custom control-data structure == FAIL "Steven Levine" <steve53@nomail.earthlink.net> - 2011-06-20 10:50 -0500
          Re: Passing string pointers in a custom control-data structure == FAIL Marcel Müller <news.5.maazl@spamgourmet.com> - 2011-06-21 08:23 +0200
          Re: Passing string pointers in a custom control-data structure == FAIL "Alex Taylor" <mail.me@reply.to.address> - 2011-06-21 06:50 -0500
            Re: Passing string pointers in a custom control-data structure == FAIL "Steven Levine" <steve53@nomail.earthlink.net> - 2011-06-24 23:17 -0500
              Re: Passing string pointers in a custom control-data structure == FAIL "Alex Taylor" <mail.me@reply.to.address> - 2011-06-26 06:50 -0500
          The actual program "Alex Taylor" <mail.me@reply.to.address> - 2011-06-21 06:59 -0500
            Re: The actual program "Steven Levine" <steve53@nomail.earthlink.net> - 2011-06-24 14:42 -0500
              Re: The actual program "Alex Taylor" <mail.me@reply.to.address> - 2011-06-26 06:48 -0500
        Re: Passing string pointers in a custom control-data structure == FAIL Marcel Müller <news.5.maazl@spamgourmet.com> - 2011-06-21 08:39 +0200
    Re: Passing string pointers in a custom control-data structure == FAIL Paul Ratcliffe <abuse@orac12.clara34.co56.uk78> - 2011-06-20 09:30 +0000
  Re: Passing string pointers in a custom control-data structure == FAIL Peter Flass <Peter_Flass@Yahoo.com> - 2011-06-18 08:08 -0400
  Re: Passing string pointers in a custom control-data structure == FAIL Paul Ratcliffe <abuse@orac12.clara34.co56.uk78> - 2011-06-18 18:07 +0000
    Re: Passing string pointers in a custom control-data structure == FAIL "Alex Taylor" <mail.me@reply.to.address> - 2011-06-20 09:01 -0500
      Re: Passing string pointers in a custom control-data structure == FAIL "Lars Erdmann" <lars.erdmann@arcor.de> - 2011-06-22 22:22 +0200
      Re: Passing string pointers in a custom control-data structure == FAIL Marty <net@comcast.martyamodeo> - 2011-06-24 10:45 -0700
        Re: Passing string pointers in a custom control-data structure == FAIL "Rich Walsh" <spamyourself@127.0.0.1> - 2011-06-25 03:04 +0000
          Re: Passing string pointers in a custom control-data structure == FAIL "Steven Levine" <steve53@nomail.earthlink.net> - 2011-06-24 22:43 -0500
            Re: Passing string pointers in a custom control-data structure == FAIL "Rich Walsh" <spamyourself@127.0.0.1> - 2011-06-26 07:11 +0000
  Re: Passing string pointers in a custom control-data structure == FAIL James Moe <jimoeDESPAM@sohnen-moe.com> - 2011-06-18 21:43 -0700

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