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diff --git a/2005/i/robert/src/geometry/vector.hh b/2005/i/robert/src/geometry/vector.hh
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+#ifndef vector_hh
+#define vector_hh
+// vector.hh
+// robert - programme du robot 2005. {{{
+//
+// Copyright (C) 2005 Nicolas Schodet
+//
+// 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+//
+// Contact :
+// Web: http://perso.efrei.fr/~schodet/
+// Email: <contact@ni.fr.eu.org>
+// }}}
+#include <cmath>
+
+namespace geometry {
+
+/// Vecteur 2d en coordonées carthésiennes.
+template<typename T>
+struct VectorT
+{
+ T x, y;
+ VectorT (void) { }
+ VectorT (T x_, T y_) { x = x_; y = y_; }
+ VectorT (T v) { x = v; y = v; }
+ VectorT (const VectorT<T> &v) { x = v.x; y = v.y; }
+ VectorT<T> &operator= (const VectorT<T> &v);
+ VectorT<T> &operator+= (const VectorT<T> &v);
+ VectorT<T> &operator-= (const VectorT<T> &v);
+ VectorT<T> &operator*= (T scalar);
+ VectorT<T> &operator/= (T scalar);
+ VectorT<T> operator+ (const VectorT<T> &v) const;
+ VectorT<T> operator- (const VectorT<T> &v) const;
+ VectorT<T> operator* (T scalar) const;
+ T operator* (const VectorT<T> &v) const;
+ VectorT<T> operator/ (T scalar) const;
+ VectorT<T> &normalize (void);
+ VectorT<T> &rotate (void);
+ VectorT<T> &rotate (T angle);
+};
+
+template<typename T>
+VectorT<T>
+operator* (T scalar, const VectorT<T> &v);
+
+template<typename T>
+std::ostream &operator<< (std::ostream &os, const VectorT<T> &v);
+
+typedef VectorT<double> Vector;
+
+} // namespace geometry
+
+#include "vector.tcc"
+
+#endif // vector_hh