ITK  6.0.0
Insight Toolkit
itkMetaDataObjectDetail.h
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1/*=========================================================================
2 *
3 * Copyright NumFOCUS
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * https://www.apache.org/licenses/LICENSE-2.0.txt
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 *=========================================================================*/
18
19#ifndef itkMetaDataObjectDetail_h
20#define itkMetaDataObjectDetail_h
21
22#include <type_traits>
23#include <utility>
24#include <iosfwd>
25
26namespace itk
27{
28
29// Implementation details for MetaDataObject meta programming
30namespace MetaDataObjectDetail
31{
32template <class T, class = void>
33struct has_Print : std::false_type
34{};
35
36template <class T>
37struct has_Print<T, std::void_t<decltype(std::declval<T>().Print(std::declval<std::ostream &>()))>> : std::true_type
38{};
39
40template <class T, class = void>
41struct has_output_operator : std::false_type
42{};
43
44template <class T>
45struct has_output_operator<T, std::void_t<decltype(std::declval<std::ostream &>() << std::declval<T>())>>
46 : std::true_type
47{};
48} // namespace MetaDataObjectDetail
49} // namespace itk
50
51#endif
The "itk" namespace contains all Insight Segmentation and Registration Toolkit (ITK) classes....
STL namespace.