Re: [boost] [shifted_ptr] Updated thread and <const T> support

17 Apr 2008

      AMDG

Phil Bouchard wrote:
...
I have discovered also another bug related to the set counter.  Now Vault 
contains the corrected version.
Ok.  Another issue.
Is it possible to deal with this:
The nodes will never be cleaned up until the list is destroyed.
Or that's what I thought....  The nodes don't seem to be cleaned up at all.

#include <boost/shifted_ptr.hpp>

#include <vector>
#include <iostream>

static int count;

using boost::shifted_ptr;
using boost::new_sh;

struct node {
    node() {
        ++count;
    }
    ~node() {
        --count;
    }
    node(const node&) {
        ++count;
    }
    shifted_ptr<node> prior;
    shifted_ptr<node> next;
};

struct list {
public:
    list() {}
    void clear() {
        front.reset();
        back.reset();
    }
    void insert() {
        if(front.get() == 0) {
            front = back = new_sh<node>();
        } else {
            back->next = new_sh<node>();
            back->next->prior = back;
            back = back->next;
        }
    }
private:
    shifted_ptr<node> front;
    shifted_ptr<node> back;
};

int main() {
    list l;
    for(int j = 0; j < 10; ++j) {
        for(int i = 0; i < 100; ++i) {
            l.insert();
        }
        l.clear();
    }
    std::cout << count << std::endl;
}

In Christ,
Steven Watanabe