Re: [boost] [serialization] Inherited objects

From: Simon Buchan (simon_at_[hidden])
Date: 2005-10-11 01:18:31

Robert Ramey wrote:
> Double check that a is polymorphic - that is, that it has at least one 
> virtual function.  Then get back to us.
> 
> Robert Ramey
> Jared McIntyre wrote:
<snip>
>>Also, there is an issue in the documentation.  In the "Pointers to
>>Objects of Derived Classes" section, it has example registration code:
>>
>>main(){
>>    ...
>>    ar.template register_type<derived_one>();
>>    ar.template register_type<derived_two>();
>>    base *b;
>>    ar & b;
>>}
>>
>>I'm guessing that is supposed to be:
>>
>>main(){
>>    ...
>>    ar.register_type<derived_one>();
>>    ar.register_type<derived_two>();
>>    base *b;
>>    ar & b;
>>}
> 
> 
> nope, its correct.  This is a little known quirk of C++ syntax.  Your second 
> version won't compile on the most conforming compilers.
> 
Not according to Comeau:
"ComeauTest.c", line 16: error: the "template" keyword used for syntactic
           disambiguation may only be used within a template