Re: [Boost-users] [Serialization] xml serialization to fileand boost::archive::xml_archive_exception (unrecognized XML syntax)

From: Robert Ramey (ramey_at_[hidden])
Date: 2007-02-22 16:30:18

Here's a couple of suggestions:

a) run under the debugger and trap when the exception is shown.  This shows 
the source code at the exception point and my have explanatory comments.
b) Double check that all BOOST_CLASS_EXPORT are not invoked from inside a 
namespace.
c)Double check tthat none ofthe identifiers used in BOOST_CLASS_EXPORT 
invocations
have html unfriendly characters in them like " or : or ??
d) Double check that all data items have SERIALIZATION_NVP to assign the 
name of the dataum.
e) Include that source code next time.

Robert Ramey

Andreas Willich wrote:
> Hi all
>
>
>
> I have a annoying problem with xml serialization to a file or
> std::cout. I want to serialize my own classes to a file via
> filestream and everytime I get a xml_archive_exception with the error
> message unrecognized XML syntax.
>
> What I want to serialize is a child class from a class hierachy. When
> I only serialize the part of the mother class (with
> BOOST_SERIALIZATION_BASE_OBJECT_NVP) it works, but when I also want to
> save the members of the child classes I get this exception.
>
> I have exported every class with BOOST_CLASS_EXPORT and at the base
> class I have a BOOST_IS_ABSTRACT(baseClass).
>
>
> Gcc brings no warnings or errors and when I use a text archive, all
> works fine.
>
>
> Has someone an idea what I do wrong or some suggestions?
>
> Thanks
> Andreas
>
>
> Here is my build environment:
> GCC:
> Using built-in specs.
> Target: i686-pc-linux-gnu
> Configured
> with: /var/tmp/portage/sys-devel/gcc-4.1.1-r3/work/gcc-4.1.1/configure
> --prefix=/usr --bindir=/usr/i686-pc-linux-gnu/gcc-bin/4.1.1
> --includedir=/usr/lib/gcc/i686-pc-linux-gnu/4.1.1/include
> --datadir=/usr/share/gcc-data/i686-pc-linux-gnu/4.1.1
> --mandir=/usr/share/gcc-data/i686-pc-linux-gnu/4.1.1/man
> --infodir=/usr/share/gcc-data/i686-pc-linux-gnu/4.1.1/info
> --with-gxx-include-dir=/usr/lib/gcc/i686-pc-linux-gnu/4.1.1/include/g
> ++-v4 --host=i686-pc-linux-gnu --build=i686-pc-linux-gnu
> --disable-altivec --enable-nls --without-included-gettext
> --with-system-zlib --disable-checking --disable-werror
> --disable-libunwind-exceptions --disable-multilib --disable-libmudflap
> --disable-libssp --disable-libgcj --enable-languages=c,c++,fortran
> --enable-shared --enable-threads=posix --enable-__cxa_atexit
> --enable-clocale=gnu
> Thread model: posix
> gcc version 4.1.1 (Gentoo 4.1.1-r3)
>
> Glibc: 2.5
>
> BOOST: CVS Build RC_1_34_0 from 19.02.2007
> BJAM:
> Boost.Jam  Version 3.1.13. OS=LINUX.
>   Copyright 1993-2002 Christopher Seiwald and Perforce Software, Inc.
>   Copyright 2001 David Turner.
>   Copyright 2001-2004 David Abrahams.
>   Copyright 2002-2005 Rene Rivera.
>   Copyright 2003-2005 Vladimir Prus.