Comparator for min-heap in C++

Question

I am trying to make a min-heap¹ of longs in C++ using the STL make_heap, etc., but my comparator doesn\'t seem to be comparing properly. The

Answer 1

Perhaps you are missing something somewhere, the code below works as intended:

#include 
#include 
#include 

struct greater1{
  bool operator()(const long& a,const long& b) const{
    return a>b;
  }
};

int main() {
  std::vector humble;
  humble.push_back(15);
  humble.push_back(15);
  humble.push_back(9);
  humble.push_back(25);

  std::make_heap(humble.begin(), humble.end(), greater1());
  while (humble.size()) {
    std::pop_heap(humble.begin(),humble.end(),greater1());
    long min = humble.back();
    humble.pop_back();  
    std::cout << min << std::endl;
  }

  return 0;
}