C++Talk.NET Forum Index C++Talk.NET
C++ language newsgroups
 
Archives   FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

CRTP with virtuals

 
Post new topic   Reply to topic    C++Talk.NET Forum Index -> C++ Language (Moderated)
View previous topic :: View next topic  
Author Message
Grzegorz Jakacki
Guest





PostPosted: Mon Sep 22, 2003 10:30 pm    Post subject: CRTP with virtuals Reply with quote



Hello,

I would appreciate some help with the code below. In particular

* Is this code legal?
* Where is the POI of BaseVisitor<DerivedVisitor>?
* Where is the POI of BaseVisitor<DerivedVisitor>::Visit()?

Thanks in advance
Grzegorz

-------------------------------------------
class VisitedA {};

template <class Derived>
struct BaseVisitor
{
virtual void Visit(VisitedA* a)
{
static_cast<Derived*>(this)->VisitConcrete(a);
}
};

struct DerivedVisitor
: public BaseVisitor<DerivedVisitor>
{
template <class Visited>
void VisitConcrete(Visited* c)
{
/* ... */
}
};

int main()
{
DerivedVisitor v;
VisitedA a;
v.Visit(&a);
}
-------------------------------------------

[ See http://www.gotw.ca/resources/clcm.htm for info about ]
[ comp.lang.c++.moderated. First time posters: Do this! ]
Back to top
Display posts from previous:   
Post new topic   Reply to topic    C++Talk.NET Forum Index -> C++ Language (Moderated) All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2006 phpBB Group
SEO toolkit © 2004-2006 webmedic.