ITK  6.0.0
Insight Toolkit
itkBitCast.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 itkBitCast_h
20#define itkBitCast_h
21
22#include <cstring> // For memcpy.
23#include <type_traits> // For is_trivially_copyable and remove_const_t.
24
25namespace itk
26{
27
31template <typename TDestination, class TSource>
32TDestination
33bit_cast(const TSource & source)
34{
35 static_assert(sizeof(TDestination) == sizeof(TSource),
36 "The destination type should have the same size as the source type.");
37 static_assert(std::is_trivially_copyable_v<TDestination>, "The destination type should be trivially copyable");
38 static_assert(std::is_trivially_copyable_v<TSource>, "The source type should be trivially copyable.");
41 std::remove_const_t<TDestination> result;
42 std::memcpy(&result, &source, sizeof(TSource));
43 return result;
44}
45
46} // namespace itk
47
48
49#endif // itkBitCast_h
The "itk" namespace contains all Insight Segmentation and Registration Toolkit (ITK) classes....
TDestination bit_cast(const TSource &source)
Definition: itkBitCast.h:33