1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
// Copyright (c) 2005 Utrecht University (The Netherlands),
// ETH Zurich (Switzerland), Freie Universitaet Berlin (Germany),
// INRIA Sophia-Antipolis (France), Martin-Luther-University Halle-Wittenberg
// (Germany), Max-Planck-Institute Saarbruecken (Germany), RISC Linz (Austria),
// and Tel-Aviv University (Israel). All rights reserved.
//
// 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; version 2.1 of the License.
// See the file LICENSE.LGPL distributed with CGAL.
//
// 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: svn+ssh://scm.gforge.inria.fr/svn/cgal/branches/CGAL-3.2-branch/Number_types/include/CGAL/Binary_operator_result.h $
// $Id: Binary_operator_result.h 28567 2006-02-16 14:30:13Z lsaboret $
//
//
// Author(s) : Sylvain Pion
#ifndef CGAL_BINARY_OPERATOR_RESULT_H
#define CGAL_BINARY_OPERATOR_RESULT_H
#include <CGAL/basic.h>
// This class helps finding out the result type of mixed operators +-*/.
// For example it answers what the type of double+int is.
// This class is meant to be specialized for some number types pairs,
// when a mixed operator is defined.
CGAL_BEGIN_NAMESPACE
template < typename T1, typename T2 >
struct Binary_operator_result;
// T1 == T2
template < typename T >
struct Binary_operator_result <T, T>
{ typedef T type; };
// T1 == int
template < typename T >
struct Binary_operator_result <T, int>
{ typedef T type; };
// T2 == int
template < typename T >
struct Binary_operator_result <int, T>
{ typedef T type; };
CGAL_END_NAMESPACE
#endif // CGAL_BINARY_OPERATOR_RESULT_H
|
