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Subject: Re: [boost] [serialization] VC++ compiler warnings
From: Emil Dotchevski (emildotchevski_at_[hidden])
Date: 2011-07-11 20:27:20

On Mon, Jul 11, 2011 at 3:22 PM, Stephan T. Lavavej
<stl_at_[hidden]> wrote:
> [Beman Dawes]
>> A 1.47.0  VC++ 10.0 build of Boost  produced a lot of stupid warnings
>> from Serialization in the form c:\Program Files (x86)\Microsoft Visual
>> Studio 10.0\VC\INCLUDE\xutility(2227) : warning C4996:
>> 'std::_Copy_impl': Function call with parameters that may be unsafe -
>> this call relies on the caller to check that the passed values are
>> correct. To disable this warning, use -D_SCL_SECURE_NO_WARNINGS. See
>> documentation on how to use Visual C++ 'Checked Iterators'
> [Robert Ramey]
>> Hmmm - it would seem to me the easiest and least intrusive way to
>> deal with this is tweak the bjam build script.  I build an test with
>> MSVC 9.0 which also has this "facility" and I don't get the errors
>> so maybe the build script already has this in it.  I'll look into it.
> By the way - these warnings are noisy, but they're not completely pointless. They're triggered by calling STL algorithms with raw pointers as output iterators, or with user-defined iterators that aren't marked as "checked".

I'd appreciate warnings that catch bad pointers, but getting a warning
just because I'm using a pointer is silly. What is the programmer
expected to do? Be more careful?

This reminds me of the "Baby on board!" stickers people put on their
cars: do they target the careful driver who needs extra discouragement
from crashing into cars? Or perhaps the reckless driver who would
happily crash into you, except if you have a baby on board?

Emil Dotchevski
Reverge Studios, Inc.

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