Index: src/work/bin_heap_demo.cc
===================================================================
--- src/work/bin_heap_demo.cc	(revision 37)
+++ src/work/bin_heap_demo.cc	(revision 37)
@@ -0,0 +1,91 @@
+#include <iostream>
+#include <bin_heap.hh>
+#include <string>
+#include <map>
+
+using namespace marci;
+using namespace std;
+
+class string_int_map;
+
+typedef BinHeap<string, double, string_int_map> StrDoubleHeap;
+
+class string_int_map : public map<string,int> {
+public:
+  int get(const string &s) {
+    // Bocs, ez igy gaaaany, de nem volt kedvem utananezni, hogy
+    // hogy is mukodik ez a map :)
+    if( count(s) == 0 ) {
+      operator[](s) = StrDoubleHeap::PRE_HEAP;
+    }
+    return operator[](s);
+  }
+  void put(const string &s, int i) {
+      operator[](s) = i;
+  }
+};
+
+
+int main()
+{
+  string_int_map sim;
+  
+  
+  cout << "testing string_int_map default value:\n";
+  cout << "  alma: " << sim.get("alma") << endl;
+
+  cout << "creating the heap\n";
+  StrDoubleHeap heap(sim);
+
+  cout << "heap.push(\"alma\", 15);\n";
+  heap.push("alma", 15);
+
+  cout << "heap.put(\"korte\", 3.4);\n";
+  heap.put("korte", 3.4);
+
+  cout << "heap.get(\"alma\") = " 
+       << heap.get("alma")
+       << endl;
+
+  cout << "heap.top() = "
+       << heap.top() << endl;
+  cout << "heap.topValue() = "
+       << heap.topValue() << endl;
+
+  cout << "heap.decrease(\"alma\", 1.2);\n";
+  heap.put("alma", 1.2);
+
+  cout << "heap.top() = "
+       << heap.top() << endl;
+  cout << "heap.topValue() = "
+       << heap.topValue() << endl;
+
+  cout << "heap.put(\"alma\", 22);\n";
+  heap.put("alma", 22);
+
+  cout << "heap.top() = "
+       << heap.top() << endl;
+  cout << "heap.topValue() = "
+       << heap.topValue() << endl;
+
+  cout << "heap.size() = "
+       << heap.size() << endl;
+  cout << "heap.pop();\n";
+  heap.pop();
+
+  cout << "heap.top() = "
+       << heap.top() << endl;
+  cout << "heap.topValue() = "
+       << heap.topValue() << endl;
+
+  cout << "heap.size() = "
+       << heap.size() << endl;
+  cout << "heap.pop();\n";
+  heap.pop();
+
+  cout << "heap.size() = "
+       << heap.size() << endl;  
+  cout << "heap.empty() = "
+       << (heap.empty()?"true":"false") << endl;  
+}
+