--- a/BitArray.cpp	Thu Sep 13 23:14:40 2012 +0200
+++ b/BitArray.cpp	Thu Sep 13 23:23:14 2012 +0200
@@ -1,2 +1,43 @@
 #include "BitArray.hpp"
 
+#include <algorithm>
+
+BitArray::~BitArray()
+{
+  delete bits;
+}
+
+BitArray::BitArray(const BitArray& other) : size_(other.size()), bits(new uchar[NUMCHARS(size_)])
+{
+  memcpy(bits, other.bits, NUMCHARS(size_));
+}
+
+BitArray& BitArray::operator=(const BitArray& other)
+{
+  if (NUMCHARS(size_) != NUMCHARS(other.size_)) {
+    delete bits;
+    bits = new uchar[NUMCHARS(other.size_)];
+  }
+  size_ = other.size_;
+  memcpy(bits, other.bits, NUMCHARS(size_));
+  return *this;
+}
+
+bool BitArray::operator==(const BitArray& rhs) const
+{
+  if (size() != rhs.size())
+    return false;
+  for(size_t i = 0; i < size(); ++i) {
+    if (testBit(i) != rhs.testBit(i))
+      return false;
+  }
+  return true;
+}
+
+std::ostream& operator<<(std::ostream& out, const BitArray& rhs)
+{
+  for (size_t i = 0; i < rhs.size(); ++i) {
+    out << (rhs.testBit(i) ? "1" : "0");
+  }
+  return out;
+}