GCC_Speed_test

#include <vector>
#include <iostream>
#include <algorithm>

class obj
{
public:
  obj():v_(10000){}
  obj(const obj&o):a_(o.a_),v_(o.v_){}
  void set(int a){a_=a;}
  int get() const {return a_;}
private:
  int a_;
  std::vector<int> v_;
};

inline bool asc(const obj& a, const obj& b)
{
  return (a.get()<b.get());
}

inline  bool desc(const obj& a, const obj& b)
{
  return (a.get()>b.get());
}

int main()
{
  const size_t size=10000;
  std::vector<obj> v(size);

  for (int i=0; i<size; ++i)
    v[i].set(i);

  for (int i=0; i<20; i++)
    {
      std::sort(v.begin(),v.end(),asc);
      std::sort(v.begin(),v.end(),desc);
    }

  return 0;
}