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diff --git a/include/gudhi_patches/CGAL/determinant_of_vectors.h b/include/gudhi_patches/CGAL/determinant_of_vectors.h
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+++ b/include/gudhi_patches/CGAL/determinant_of_vectors.h
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+// Copyright (c) 2014
+// INRIA Saclay-Ile de France (France)
+//
+// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public License as
+// published by the Free Software Foundation; either version 3 of the License,
+// or (at your option) any later version.
+//
+// Licensees holding a valid commercial license may use this file in
+// accordance with the commercial license agreement provided with the software.
+//
+// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+//
+// $URL$
+// $Id$
+//
+// Author(s) : Marc Glisse
+
+#ifndef CGAL_DETVEC_H
+#define CGAL_DETVEC_H
+#include <CGAL/determinant.h>
+#include <CGAL/predicates/sign_of_determinant.h>
+
+namespace CGAL {
+ // TODO: determine whether it is better to pass them by lines or columns.
+
+ template <class NT, class Vector> inline
+ NT determinant_of_vectors(Vector const&a, Vector const&b){
+ return determinant<NT>(a[0],a[1],b[0],b[1]);
+ }
+ template <class NT, class Vector> inline
+ typename Sgn<NT>::result_type
+ sign_of_determinant_of_vectors(Vector const&a, Vector const&b){
+ return sign_of_determinant<NT>(a[0],a[1],b[0],b[1]);
+ }
+
+ template <class NT, class Vector>
+ NT determinant_of_vectors(Vector const&a, Vector const&b,
+ Vector const&c){
+ return determinant<NT>(a[0],a[1],a[2],b[0],b[1],b[2],c[0],c[1],c[2]);
+ }
+ template <class NT, class Vector>
+ typename Sgn<NT>::result_type
+ sign_of_determinant_of_vectors(Vector const&a, Vector const&b,
+ Vector const&c){
+ return sign_of_determinant<NT>(a[0],a[1],a[2],b[0],b[1],b[2],c[0],c[1],c[2]);
+ }
+
+ template <class NT, class Vector>
+ NT determinant_of_vectors(Vector const&a, Vector const&b,
+ Vector const&c, Vector const&d){
+ return determinant<NT>(
+ a[0],a[1],a[2],a[3],
+ b[0],b[1],b[2],b[3],
+ c[0],c[1],c[2],c[3],
+ d[0],d[1],d[2],d[3]);
+ }
+ template <class NT, class Vector>
+ typename Sgn<NT>::result_type
+ sign_of_determinant_of_vectors(Vector const&a, Vector const&b,
+ Vector const&c, Vector const&d){
+ return sign_of_determinant<NT>(
+ a[0],a[1],a[2],a[3],
+ b[0],b[1],b[2],b[3],
+ c[0],c[1],c[2],c[3],
+ d[0],d[1],d[2],d[3]);
+ }
+
+ template <class NT, class Vector>
+ NT determinant_of_vectors(Vector const&a, Vector const&b,
+ Vector const&c, Vector const&d, Vector const&e){
+ return determinant<NT>(
+ a[0],a[1],a[2],a[3],a[4],
+ b[0],b[1],b[2],b[3],b[4],
+ c[0],c[1],c[2],c[3],c[4],
+ d[0],d[1],d[2],d[3],d[4],
+ e[0],e[1],e[2],e[3],e[4]);
+ }
+ template <class NT, class Vector>
+ typename Sgn<NT>::result_type
+ sign_of_determinant_of_vectors(Vector const&a, Vector const&b,
+ Vector const&c, Vector const&d, Vector const&e){
+ return sign_of_determinant<NT>(
+ a[0],a[1],a[2],a[3],a[4],
+ b[0],b[1],b[2],b[3],b[4],
+ c[0],c[1],c[2],c[3],c[4],
+ d[0],d[1],d[2],d[3],d[4],
+ e[0],e[1],e[2],e[3],e[4]);
+ }
+
+ template <class NT, class Vector>
+ NT determinant_of_vectors(Vector const&a, Vector const&b,
+ Vector const&c, Vector const&d, Vector const&e, Vector const&f){
+ return determinant<NT>(
+ a[0],a[1],a[2],a[3],a[4],a[5],
+ b[0],b[1],b[2],b[3],b[4],b[5],
+ c[0],c[1],c[2],c[3],c[4],c[5],
+ d[0],d[1],d[2],d[3],d[4],d[5],
+ e[0],e[1],e[2],e[3],e[4],e[5],
+ f[0],f[1],f[2],f[3],f[4],f[5]);
+ }
+ template <class NT, class Vector>
+ typename Sgn<NT>::result_type
+ sign_of_determinant_of_vectors(Vector const&a, Vector const&b,
+ Vector const&c, Vector const&d, Vector const&e, Vector const&f){
+ return sign_of_determinant<NT>(
+ a[0],a[1],a[2],a[3],a[4],a[5],
+ b[0],b[1],b[2],b[3],b[4],b[5],
+ c[0],c[1],c[2],c[3],c[4],c[5],
+ d[0],d[1],d[2],d[3],d[4],d[5],
+ e[0],e[1],e[2],e[3],e[4],e[5],
+ f[0],f[1],f[2],f[3],f[4],f[5]);
+ }
+
+}
+#endif