Re: [Boost-users] Pointer to objects in Boost.MultiIndex

Subject: Re: [Boost-users] Pointer to objects in Boost.MultiIndex
From: Joaquin M Lopez Munoz (joaquin_at_[hidden])
Date: 2015-12-30 05:50:37

Amit Prakash Ambasta <amit.prakash.ambasta <at> gmail.com> writes:

> 
> Consider the following code snippet:
> 
> [...]
>  
> struct LinkList;
> 
> struct LinkList {
> Â  Â  size_t index;
> Â  Â  LinkList* parent;
> Â  Â  LinkList(size_t index, LinkList* parent) :
>         index(index), parent(parent) {}
> };
> 
> struct llindex {};
> 
> typedef ordered_unique<
>     tag<llindex>, member<LinkList, size_t, &LinkList::index>
> > LinkListIndex;
> typedef boost::multi_index_container<
>     LinkList, indexed_by<LinkListIndex>
> > IndexedLinkList;
> 
> [...]
>
> int main() {
> Â  Â  IndexedLinkList ill;
> Â  Â  auto &index_ll = ill.get<0>();
> 
> Â  Â  ill.insert(LinkList{0, nullptr});
> Â  Â  ill.insert(LinkList{1, (LinkList*)(&(*index_ll.find(0)))});
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