containers.cc

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#include "lout/object.hh"
#include "lout/container.hh"
 
using namespace lout::object;
using namespace lout::container::typed;
 
class ReverseComparator: public Comparator
{
private:
   Comparator *reversed;
 
public:
   ReverseComparator (Comparator *reversed) { this->reversed = reversed; }
   int compare(Object *o1, Object *o2) { return - reversed->compare (o1, o2); }
};
 
void testHashSet ()
{
   puts ("--- testHashSet ---");
 
   HashSet<String> h(true);
 
   h.put (new String ("one"));
   h.put (new String ("two"));
   h.put (new String ("three"));
 
   puts (h.toString());
}
 
void testHashTable ()
{
   puts ("--- testHashTable ---");
 
   HashTable<String, Integer> h(true, true);
 
   h.put (new String ("one"), new Integer (1));
   h.put (new String ("two"), new Integer (2));
   h.put (new String ("three"), new Integer (3));
 
   puts (h.toString());
 
   h.put (new String ("one"), new Integer (4));
   h.put (new String ("two"), new Integer (5));
   h.put (new String ("three"), new Integer (6));
 
   puts (h.toString());
}
 
void testVector1 ()
{
   ReverseComparator reverse (&standardComparator);
 
   puts ("--- testVector (1) ---");
 
   Vector<String> v (true, 1);
 
   v.put (new String ("one"));
   v.put (new String ("two"));
   v.put (new String ("three"));
   puts (v.toString());
 
   v.sort (&reverse);
   puts (v.toString());
 
   v.sort ();
   puts (v.toString());
}
 
void testVector2 ()
{
   puts ("--- testVector (2) ---");
 
   Vector<String> v (true, 1);
 
   v.insertSorted (new String ("one"));
   puts (v.toString());
 
   v.insertSorted (new String ("two"));
   puts (v.toString());
 
   v.insertSorted (new String ("three"));
   puts (v.toString());
 
   v.insertSorted (new String ("five"));
   puts (v.toString());
 
   v.insertSorted (new String ("six"));
   puts (v.toString());
 
   v.insertSorted (new String ("four"));
   puts (v.toString());
 
   for (int b = 0; b < 2; b++) {
      bool mustExist = b;
      printf ("mustExist = %s\n", mustExist ? "true" : "false");
 
      String k ("alpha");
      printf ("   '%s' -> %d\n", k.chars(), v.bsearch (&k, mustExist));
 
      for (Iterator<String> it = v.iterator(); it.hasNext(); ) {
         String *k1 = it.getNext();
         printf ("   '%s' -> %d\n", k1->chars(), v.bsearch (k1, mustExist));
 
         char buf[64];
         strcpy (buf, k1->chars());
         strcat (buf, "-var");
         String k2 (buf);
         printf ("   '%s' -> %d\n", k2.chars(), v.bsearch (&k2, mustExist));
      }
   }
}
 
void testVector3 ()
{
   // Regression test: resulted once incorrently (0, 2, 3), should
   // result in (1, 2, 3).
 
   puts ("--- testVector (3) ---");
 
   Vector<String> v (true, 1);
   String k ("omega");
 
   v.put (new String ("alpha"));
   printf ("   -> %d\n", v.bsearch (&k, false));
   v.put (new String ("beta"));
   printf ("   -> %d\n", v.bsearch (&k, false));
   v.put (new String ("gamma"));
   printf ("   -> %d\n", v.bsearch (&k, false));
}
 
void testStackAsQueue ()
{
   puts ("--- testStackAsQueue ---");
 
   Stack<Integer> s (true);
 
   for (int i = 1; i <= 10; i++)
      s.pushUnder (new Integer (i));
 
   while (s.size () > 0) {
      Integer *i = s.getTop ();
      printf ("%d\n", i->getValue ());
      s.pop ();
   }
}
 
int main (int argc, char *argv[])
{
   testHashSet ();
   testHashTable ();
   testVector1 ();
   testVector2 ();
   testVector3 ();
   testStackAsQueue ();
 
   return 0;
}