Re: [Boost-users] [Serialization] Sometimes Fails Reading Binary File

Subject: Re: [Boost-users] [Serialization] Sometimes Fails Reading Binary File
From: Robert McCullough (rob_at_[hidden])
Date: 2010-06-17 10:39:08

Steven,

I modified basic_binary_iarchive.ipp with some cout lines for debugging.
See attached file.
I executed the LoadPersistentData() in the LoadPersistentData.cpp to
serialize in my data from the file.
The output.txt file shows the output for one Good and two Bad results of
executing this function.
You can see from the Bad results that the
basic_binary_iarchive<Archive>::init() is failing on line :
if(l == std::strlen(BOOST_ARCHIVE_SIGNATURE())) {
and line
if(file_signature != BOOST_ARCHIVE_SIGNATURE())

Do you have any ideas why I would be getting these large numbers for " l "?

What does the " input_library_version "  indicate?

What does  input_library_version == 5 mean ?

What does  input_library_version == 7 mean ?

Thanks, Robert

> -----Original Message-----
> From: boost-users-bounces_at_[hidden] [mailto:boost-users-
> bounces_at_[hidden]] On Behalf Of Steven Watanabe
> Sent: Wednesday, June 16, 2010 11:36 AM
> To: boost-users_at_[hidden]
> Subject: Re: [Boost-users] [Serialization] Sometimes Fails Reading Binary
File
> 
> AMDG
> 
> Robert McCullough wrote:
> > I was able to compile and run my app on Windows 7.
> > Debugging using Visual Studio 2008 and using Boost 1.43.0 with the
> > patch from https://svn.boost.org/trac/boost/ticket/4257
> >
> > The value of l at line 56 of
> > boost/archive/impl/basic_binary_archive.ipp is I = 369098752;
> >
> 
> = 0x16000000
> 
> indicating that you're trying to read the archive on a little endian
machine,
> when it was written on a big endian machine.
> 
> > file_signature = ""
> > Line 56:   if(l == std::strlen(BOOST_ARCHIVE_SIGNATURE())) {      Fails!
> > Line  70:  if(file_signature != BOOST_ARCHIVE_SIGNATURE()) is true so,
> > the archive_exception::invalid_signature is thrown on line 73.
> >
> > On my Window 7 PC,
> > sizeof(size_t) == 4
> > sizeof(library_version_type)  could not find definition of
> > library_version_type
> >
> 
> It's boost::archive::library_version_type defined in
> boost/archive/basic_archive.hpp
> 
> > sizeof(int) == 4
> > sizeof(long) == 4
> > sizeof(float) == 4
> > sizeof(double) == 8
> >
> 
> In Christ,
> Steven Watanabe
> 
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