Create a new src/priv/ directory for private algorithms.

* README: Document it.
* configure.ac: Generate src/priv/Makefile.
* src/Makefile.am: Recurse into priv/.
* src/priv/Makefile.am: New file.
* src/misc/acccompl.cc, src/misc/acccompl.hh,
src/misc/accconv.cc, src/misc/accconv.hh: Move to...
* src/priv/acccompl.cc, src/priv/acccompl.hh,
src/priv/accconv.cc, src/priv/accconv.hh: ... here.
* src/misc/Makefile.am: Adjust.
* src/tgbaalgos/scc.cc, src/tgbaalgos/simulation.cc: Adjust
includes.
* src/sanity/style.test: Make sure no public header
file include a private one.

src/priv/acccompl.hh

@@ -0,0 +1,56 @@
+// -*- coding: utf-8 -*-
+// Copyright (C) 2012, 2013 Laboratoire de Recherche et Developpement de
+// l'Epita (LRDE)
+//
+// This file is part of Spot, a model checking library.
+//
+// Spot 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 3 of the License, or
+// (at your option) any later version.
+//
+// Spot 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/>.
+
+
+#ifndef SPOT_PRIV_ACCCOMPL_HH
+# define SPOT_PRIV_ACCCOMPL_HH
+
+#include <map>
+#include <bdd.h>
+#include "misc/hash.hh"
+#include "misc/bddlt.hh"
+
+namespace spot
+{
+  /// \brief Helper class to convert acceptance conditions into promises
+  ///
+  /// A set of acceptance conditions represented by the sum "à la Spot",
+  /// is converted into a product of promises.
+  class acc_compl
+  {
+    public:
+      acc_compl(const bdd& all, const bdd& neg)
+        : all_(all),
+          neg_(neg)
+      {
+      }
+
+
+      bdd complement(const bdd& acc);
+      bdd reverse_complement(const bdd& acc);
+
+    protected:
+      const bdd all_;
+      const bdd neg_;
+      typedef Sgi::hash_map<bdd, bdd, bdd_hash> bdd_cache_t;
+      bdd_cache_t cache_;
+  };
+} // End namespace Spot
+
+#endif // SPOT_PRIV_ACCCOMPL_HH