MO full import

git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@25 331e1502-861f-0410-8da2-ba01fb791d7f

trunk/paradiseo-mo/src/moEasyCoolSched.h

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+// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
+
+// "moEasyCoolSched.h"
+
+// (c) OPAC Team, LIFL, 2003-2006
+
+/* LICENCE TEXT
+   
+   Contact: paradiseo-help@lists.gforge.inria.fr
+*/
+
+#ifndef __moEasyCoolSched_h
+#define __moEasyCoolSched_h
+
+#include "moCoolSched.h"
+
+//! One of the possible moCoolSched
+/*!
+  The simpliest, the temperature decrease according to a ratio until
+  it greater than a threshold.
+ */
+class moEasyCoolSched:public moCoolSched
+{
+
+public:
+  //! Simple constructor
+  /*!
+     \param __threshold the threshold.
+     \param __ratio the ratio used to descrease the temperature.
+   */
+  moEasyCoolSched (double __threshold,
+		   double __ratio):threshold (__threshold), ratio (__ratio)
+  {
+
+  }
+
+  //! Function which proceeds to the cooling.
+  /*!
+     Decrease the temperature and indicates if it is greater than the threshold.
+
+     \param __temp the current temperature.
+     \return if the new temperature (current temperature * ratio) is greater than the threshold.
+   */
+  bool operator   () (double &__temp)
+  {
+
+    return (__temp *= ratio) > threshold;
+  }
+
+private:
+
+  //! The temperature threhold.
+  double threshold;
+
+  //! The decreasing factor of the temperature.
+  double ratio;
+
+};
+
+#endif