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diff --git a/progress_bar.h b/progress_bar.h
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+
+///////////////////////////////////////////////////////////////////////////
+// This program is free software: you can redistribute it and/or modify  //
+// it under the terms of the version 3 of the GNU General Public License //
+// as published by the Free Software Foundation.                         //
+//                                                                       //
+// This program is distributed in the hope that it will be useful, but   //
+// WITHOUT ANY WARRANTY; without even the implied warranty of            //
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      //
+// General Public License for more details.                              //
+//                                                                       //
+// You should have received a copy of the GNU General Public License     //
+// along with this program. If not, see <http://www.gnu.org/licenses/>.  //
+//                                                                       //
+// Written by Francois Fleuret, (C) IDIAP                                //
+// Contact <francois.fleuret@idiap.ch> for comments & bug reports        //
+///////////////////////////////////////////////////////////////////////////
+
+/*
+
+  This class displays a progress bar in text mode and computes a rough
+  estimate of the remaining processing time.
+
+*/
+
+#ifndef PROGRESS_BAR_H
+#define PROGRESS_BAR_H
+
+#include <iostream>
+
+using namespace std;
+
+#include "misc.h"
+
+class ProgressBar {
+  bool _visible;
+  scalar_t _value_max, _last_step;
+  time_t _initial_time;
+  const static int _width;
+public:
+  ProgressBar();
+  void set_visible(bool visible);
+  void init(ostream *out, scalar_t value_max);
+  void refresh(ostream *out, scalar_t value);
+  void finish(ostream *out);
+};
+
+#endif