[boost] Re: IOStreams formal review start

From: Neal D. Becker (ndbecker2_at_[hidden])
Date: 2004-09-07 14:47:16

Jonathan Turkanis wrote:

> 
> "Jeff Flinn" <TriumphSprint2000_at_[hidden]> wrote in message
> news:ch22j5$qr8$1_at_sea.gmane.org...
>> I've tried to replace a couple of existing derived stream/streambuf
>> classes that are used with boost::serialization i/o archives to support
>> Drag/Drop/Copy/Paste in an MFC application.
>>
>> The Drop/Paste side works great and significantly simplifies and reduces
>> the amount of code req'd:
> 
> I glad to hear it.
> 
>> Unfortunately, the Drag/Copy side produces a access violation in the
>> std::locale copy constructor, when
>> boost::io::detail::indirect_streambuf::imbue calls
>> std::basic_streambuf::pbuimbue. I've tried the following with both
>> binary/text archive types:
> 
> At some point I accidentally erased the initialization of the pointer
> next_ in the indirect_streambuf member initialization list. It should be
> patched as follows:
> 
> ----
> 
> diff -u -r1.5 indirect_streambuf.hpp
> --- indirect_streambuf.hpp 31 Aug 2004 18:51:32 -0000 1.5
> +++ indirect_streambuf.hpp 31 Aug 2004 18:51:41 -0000
> @@ -142,7 +142,7 @@
> 
>  template<typename T, typename Tr, typename Alloc, typename Mode>
>  indirect_streambuf<T, Tr, Alloc, Mode>::indirect_streambuf()
> -    : pback_size_(0), flags_(0) { }
> +    : next_(0), pback_size_(0), flags_(0) { }
> 

I had been getting segfault during destruction coming from imbue, this
probably explains it.