Re: [boost] [Serialization] Bizarre bug

Subject: Re: [boost] [Serialization] Bizarre bug
From: Robert Ramey (ramey_at_[hidden])
Date: 2009-08-03 17:16:03

whoops, turns out the test does fail. I'll look into it.  Note that 
complaints get better results when posted a track items where they hang 
around rather than scrolling off the list.

Robert Ramey

Robert Ramey wrote:
>> I just compiled and ran this test with no problem on MSVC 7.1
>>
>> Robert Ramey
>>
>> troy d. straszheim wrote:
>>> Jarl Lindrud wrote:
>>>> There is a rather bizarre bug in Boost.Serialization, that was
>>>> reported on this list three years ago:
>>>>
>>>> http://article.gmane.org/gmane.comp.lib.boost.devel/147010/match=serialization
>>>>  +bizarre+bug
>>>>
>>>> To sum up, a piece of code that is never even executed, is causing
>>>> a serialization error in a different part of the program.
>>>>
>>>> Unfortunately it seems that this bug was never fixed - I just tried
>>>> it on Boost 1.39.0, and the bug is still there.
>>>>
>>>> Any chance something can be done about it?
>>>>
>>>> For reference, here is the sample program that reproduces the
>>>> issue:
>>>
>>> Looks like UB to me.  From the C++ standard:
>>>
>>> Note: in particular, a null reference cannot exist in a well-defined
>>> program, because the only way to create such a reference would be to
>>> bind it to the "object" obtained by dereferencing a null pointer,
>>> which causes undefined behavior. (§ 8.3.2, ¶ 4)
>>>
>>> There is plenty of stuff out on the net about this; I find this
>>> thread pretty entertaining:
>>>
>>> http://stackoverflow.com/questions/1110111/what-part-of-dereferencing-null-pointers-causes-undesired-behavior/1110146#1110146
>>>
>>> -t
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