Ticket #13427: reproducer.cpp

#include <boost/heap/binomial_heap.hpp>

struct compare {
    bool operator()(const int n1, const int n2) const {
        return n1 > n2;
    }
};

int main() {
    boost::heap::binomial_heap<int, boost::heap::compare<compare>> h;
    boost::heap::binomial_heap<int, boost::heap::compare<compare>>::handle_type ref;

    int vals[] = {1, 4, 3, 2, 1, 3};
    for (int i = 0; i < sizeof(vals)/sizeof(int); i++)
        ref = h.push(vals[i]);

    h.decrease(ref, -1);

    while (!h.empty()) {
        printf("%d\n", h.top());
        h.pop();
    }
}