Re: [boost] Shared_ptr serialization

From: Peter Dimov (pdimov_at_[hidden])
Date: 2004-11-11 07:15:50

David Abrahams wrote:
> "Peter Dimov" <pdimov_at_[hidden]> writes:
>
>> 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.

It's a complete and working program, just run it. ;-) wpmap[pt] has already 
added the element. map::find-based code needs +1.