Added missing comparison operators.

src/mem/mman.h

@@ -38,6 +38,9 @@ namespace mem {
  inline std::size_t size() const { return _size; }
 
  inline explicit operator bool() const { return virt() != nullptr and size() > 0; }
+
+ inline bool operator==(chunk const &other) const { return _virt == other._virt and _size == other._size; }
+ inline bool operator!=(chunk const &other) const { return _virt != other._virt or _size != other._size; }
  };
 
  template <class Chunk> class mapped;
@@ -269,6 +272,9 @@ namespace mem {
  /** @brief Calls @ref reset.
  */
  inline ~mapped() { reset(); }
+
+ inline bool operator==(mapped const &other) const { return _chunk == other._chunk; }
+ inline bool operator!=(mapped const &other) const { return _chunk != other._chunk; }
  };
 
 }