// constructing sets

#include <iostream>

#include <set>

#include <string.h>

bool fncomp (int lhs, int rhs) {return lhs<rhs;}

struct classcomp {

  bool operator() (const int& lhs, const int& rhs) const

  {return lhs<rhs;}

};

int main ()

{

  std::set<int> first;                           // empty set of ints

  int myints[]= {,,,,};

  std::set<int> second (myints,myints+);        // range

  std::set<int> third (second);                  // a copy of second

  std::set<int> fourth (second.begin(), second.end());  // iterator ctor.

  std::set<int,classcomp> fifth(second.begin(), second.end());                 // class as Compare

  std::set<int>::reverse_iterator rit;

  for (rit=fifth.rbegin(); rit != fifth.rend(); ++rit)

    std::cout << ' ' << *rit;

  //bool(*fn_pt)(int,int) = fncomp;

  //std::set<int,bool(*)(int,int)> sixth (fn_pt);  // function pointer as Compare

  //std::cout<<strcmp("abc", "ab")<<std::endl;

  return ;

}