[boost] Re: [fileststem]1.32:withserilization:visibilityof m_path

From: David Abrahams (dave_at_[hidden])
Date: 2004-11-10 20:55:33

"Peter Dimov" <pdimov_at_[hidden]> writes:

>
> std::map< boost::shared_ptr<void>, int > wpmap;
>
> void write( std::ostream & os, int const & v )
> {
>     os << v << ' ';
> }
>
> void write( std::ostream & os, std::string const & v )
> {
>     os << v << ' ';
> }
>
> template<class T> void write( std::ostream & os, boost::shared_ptr<T>
> const & pt )
> {
>     if( pt )
>     {
>         int pid = wpmap[ pt ];
>
>         if( pid != 0 )
>         {
>             write( os, pid );
>         }
>         else
>         {
>             pid = wpmap.size();

I could be wrong, but don't you need to add 1 here?  wpmap starts out
empty, after all.  

>             wpmap[ pt ] = pid;
>             write( os, pid );
>             write( os, *pt );
>         }
>     }
>     else
>     {
>         write( os, 0 );
>     }
> }

-- 
Dave Abrahams
Boost Consulting
http://www.boost-consulting.com