Visual Computing Library  devel
Loading...
Searching...
No Matches
endian.h
1/*****************************************************************************
2 * VCLib *
3 * Visual Computing Library *
4 * *
5 * Copyright(C) 2021-2025 *
6 * Visual Computing Lab *
7 * ISTI - Italian National Research Council *
8 * *
9 * All rights reserved. *
10 * *
11 * This program is free software; you can redistribute it and/or modify *
12 * it under the terms of the Mozilla Public License Version 2.0 as published *
13 * by the Mozilla Foundation; either version 2 of the License, or *
14 * (at your option) any later version. *
15 * *
16 * This program is distributed in the hope that it will be useful, *
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
19 * Mozilla Public License Version 2.0 *
20 * (https://www.mozilla.org/en-US/MPL/2.0/) for more details. *
21 ****************************************************************************/
22
23#ifndef VCL_BASE_SERIALIZATION_ENDIAN_H
24#define VCL_BASE_SERIALIZATION_ENDIAN_H
25
26#include <cstdio>
27
28namespace vcl::detail {
29
30// https://stackoverflow.com/a/38141476/5851101
31template<typename T>
32T swapEndian(T u)
33{
34 union
35 {
36 T u;
37 unsigned char u8[sizeof(T)];
38 } source, dest;
39
40 source.u = u;
41
42 for (std::size_t k = 0; k < sizeof(T); k++)
43 dest.u8[k] = source.u8[sizeof(T) - k - 1];
44
45 return dest.u;
46}
47
48} // namespace vcl::detail
49
50#endif // VCL_BASE_SERIALIZATION_ENDIAN_H