Moving hmc observables in a different directory

lib/qcd/observables/hmc_observable.h

@@ -0,0 +1,48 @@
+/*************************************************************************************
+
+Grid physics library, www.github.com/paboyle/Grid
+
+Source file: ./lib/qcd/observables/hmc_observable.h
+
+Copyright (C) 2017
+
+Author: Guido Cossu <guido.cossu@ed.ac.uk>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+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, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+See the full license in the file "LICENSE" in the top level distribution
+directory
+*************************************************************************************/
+/*  END LEGAL */
+
+#ifndef HMC_OBSERVABLE_H
+#define HMC_OBSERVABLE_H
+
+namespace Grid{
+
+template <class Field>
+class HmcObservable {
+ public:
+  virtual void TrajectoryComplete(int traj,
+                                  Field &U,
+                                  GridSerialRNG &sRNG,
+                                  GridParallelRNG &pRNG) = 0;
+};
+
+}  // namespace Grid
+
+#include "plaquette.h"
+
+#endif  //  HMC_OBSERVABLE_H