Re: [Boost-users] [serialization] unwinding "stack" of object duringloading

Subject: Re: [Boost-users] [serialization] unwinding "stack" of object duringloading
From: Robert Ramey (ramey_at_[hidden])
Date: 2011-11-13 11:57:01

Igor R wrote:
> Hello,
>
> Consider the following structure:
>
> struct outer
> {
>  inner_type1 inner1_;
>  inner_type2  inner2_;
>
>  template<class Archive>
>  void HostPort::load(Archive &ar, const unsigned int version)
>  {
>    ar >> BOOST_SERIALIZATION_NVP(inner1_);
>    ar >> BOOST_SERIALIZATION_NVP(inner2_);
>  }
> };
>
>
> Assume that loading of inner1_ throws exception. Is there a way to
> "unwind" the "stack" of objects gracefully (i.e. to skip until some
> "end" marker of inner1_), and to proceed loading the next inner object
> normally?
>

Note that the the serialization library does throw exceptions on failure. 
These
exceptions are documented in the manual.  You should be able to catch
these exceptions in your own save/load functions.  I can't say to what 
extent
one might be able to recover.  Implementing this would likely require
more elaborat save/load functions.

Robert Ramey

>
> Thanks.