#include "Interval.h"
#include <time.h>

using namespace std;

Interval addByValue(Interval a, Interval b)
{
   return Interval(a.lower+b.lower, a.upper+b.upper);
};

Interval addByRef(Interval& a, Interval& b)
{
   return Interval(a.lower+b.lower, a.upper+b.upper);
};

Interval addByConstRef(const Interval& a, const Interval& b)
{
   return Interval(a.lower+b.lower, a.upper+b.upper);
};

std::ostream& operator <<(ostream &os, const Interval &obj)
{
   os << "[" << obj.lower << ", " << obj.upper << "]";
   return os;
}

int main(int argc, char** argv)
{
   Interval a(0.3,0.6);
   Interval b(1.4,3.5);
   Interval sum(0.0,0.0);
   
   clock_t start, end;

   int i;
   const int upper = 1000000000;

   start = clock();
   for (i=0; i<upper; i++)
   {
      sum = addByValue(a,b);
   }
   end = clock();

   cout << "addByValue: \t\t" << (end-start) << " ticks\tSum: " << sum << endl;
   
   start = clock();
   for (i=0; i<upper; i++)
   {
      sum = addByRef(a,b);
   }
   end = clock();

   cout << "addByRef: \t\t" << (end-start) << " ticks\tSum: " << sum << endl;

   start = clock();
   for (i=0; i<upper; i++)
   {
      sum = addByConstRef(a,b);
   }
   end = clock();

   cout << "addByConstRef: \t\t" << (end-start) << " ticks\tSum: " << sum << endl;

   start = clock();
   for (i=0; i<upper; i++)
   {
      sum = addByValueInline(a,b);
   }
   end = clock();

   cout << "addByValueInline: \t" << (end-start) << " ticks\tSum: " << sum << endl;

   start = clock();
   for (i=0; i<upper; i++)
   {
      sum = addByRefInline(a,b);
   }
   end = clock();

   cout << "addByRefInline: \t" << (end-start) << " ticks\tSum: " << sum << endl;
   
   start = clock();
   for (i=0; i<upper; i++)
   {
      sum = addByConstRefInline(a,b);
   }
   end = clock();

   cout << "addByConstRefInline: \t" << (end-start) << " ticks\tSum: " << sum << endl;
   
   return 0;
}