1
2//
3// This source file is part of appleseed.
4// Visit http://appleseedhq.net/ for additional information and resources.
5//
6// This software is released under the MIT license.
7//
8// Copyright (c) 2010-2013 Francois Beaune, Jupiter Jazz Limited
9// Copyright (c) 2014-2017 Francois Beaune, The appleseedhq Organization
10//
11// Permission is hereby granted, free of charge, to any person obtaining a copy
12// of this software and associated documentation files (the "Software"), to deal
13// in the Software without restriction, including without limitation the rights
14// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
15// copies of the Software, and to permit persons to whom the Software is
16// furnished to do so, subject to the following conditions:
17//
18// The above copyright notice and this permission notice shall be included in
19// all copies or substantial portions of the Software.
20//
21// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
22// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
24// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
25// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
26// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
27// THE SOFTWARE.
28//
29
30#ifndef APPLESEED_FOUNDATION_CORE_CONCEPTS_NONCOPYABLE_H
31#define APPLESEED_FOUNDATION_CORE_CONCEPTS_NONCOPYABLE_H
32
33// appleseed.foundation headers.
34#include "foundation/utility/typetraits.h"
35
36// appleseed.main headers.
37#include "main/dllsymbol.h"
38
39namespace foundation
40{
41
42//
43// Private copy constructor and copy assignment ensure classes derived
44// from class NonCopyable cannot be copied or constructed by copy.
45// Taken from boost (http://www.boost.org/boost/noncopyable.hpp).
46//
47
48class APPLESEED_DLLSYMBOL NonCopyable
49{
50 protected:
51 // Class NonCopyable has protected constructor and destructor members
52 // to emphasize that it is to be used only as a base class.
53 NonCopyable() {}
54 ~NonCopyable() {}
55
56 private:
57 // Prevent NonCopyable class and any class inheriting it from being
58 // copied or constructed by copy.
59 NonCopyable(const NonCopyable&);
60 NonCopyable& operator=(const NonCopyable&);
61};
62
63
64//
65// Check whether a class inherits from foundation::NonCopyable or not.
66//
67
68template <typename T>
69struct IsCopyable
70 : public IsNotBase<NonCopyable, T>
71{
72};
73
74} // namespace foundation
75
76#endif // !APPLESEED_FOUNDATION_CORE_CONCEPTS_NONCOPYABLE_H
77