[Boost-users] [exception] Using Boost.Exception infrastructure without using boost::exception

Subject: [Boost-users] [exception] Using Boost.Exception infrastructure without using boost::exception
From: Mostafa (mostafa_working_away_at_[hidden])
Date: 2011-05-28 21:27:26

I'm interested in using the infrastructure in Boost.Exception without  
using using boost::exception or deriving from it.  Is this possible, if  
so, how?  From the documentation, it seems so, but the documentation is  
not totally clear on this.

 From what I deduced, one should do:

class my_exception {};

//1
throw boost::enable_current_exception(my_exception());

//2
catch(my_exception & ex)
{
   /do stuff ....
   boost::rethrow_exception(boost::current_exception());
}

Though,  
http://www.boost.org/doc/libs/1_46_1/libs/exception/doc/enable_current_exception.html  
states:

Note: Instead of using the throw keyword directly, it is preferable to  
call boost::throw_exception. This is guaranteed to throw an exception that  
derives from boost::exception and supports the exception_ptr functionality.

And it's not very clear what exactly are the requirements for supporting  
exception_ptr functionality if one doesn't derive from boost::exception.

Thanks,

Mostafa