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diff --git a/src/stlplus/subsystems/timer.hpp b/src/stlplus/subsystems/timer.hpp
new file mode 100644
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+++ b/src/stlplus/subsystems/timer.hpp
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+#ifndef STLPLUS_TIMER
+#define STLPLUS_TIMER
+////////////////////////////////////////////////////////////////////////////////
+
+//   Author:    Andy Rushton
+//   Copyright: (c) Southampton University 1999-2004
+//              (c) Andy Rushton           2004-2009
+//   License:   BSD License, see ../docs/license.html
+
+//   A CPU timer encapsulated as a class. Measures the CPU time used since its
+//   construction and allows this cumulative time to be reported at any time.
+
+////////////////////////////////////////////////////////////////////////////////
+#include "subsystems_fixes.hpp"
+#include <time.h>
+#include <string>
+#include <iostream>
+
+namespace stlplus
+{
+
+  ////////////////////////////////////////////////////////////////////////////////
+
+  class timer
+  {
+  private:
+    clock_t m_clock;
+    time_t m_time;
+
+  public:
+    // constructor resets the timer to zero
+    timer(void);
+    ~timer(void);
+
+    // reset the timer to zero without destroying it
+    void reset(void);
+
+    // get the elapsed time in seconds, expressed as a float
+    float elapsed(void) const;
+    // get the CPU time in seconds, expressed as a float
+    float cpu(void) const;
+
+    // get a printable string representing the elapsed time and CPU time
+    std::string text(void) const;
+  };
+
+  ////////////////////////////////////////////////////////////////////////////////
+
+  // print the elapsed time and CPU time using the same representation as the text method
+  std::ostream& operator << (std::ostream&, const timer&);
+
+  ////////////////////////////////////////////////////////////////////////////////
+
+} // end namespace stlplus
+
+#endif