1// Copyright (c) 2014-present The Bitcoin Core developers
2// Distributed under the MIT software license, see the accompanying
3// file COPYING or http://www.opensource.org/licenses/mit-license.php.
4
5#ifndef BITCOIN_COMPAT_ENDIAN_H
6#define BITCOIN_COMPAT_ENDIAN_H
7
8#include <compat/byteswap.h>
9
10#include <bit>
11#include <cstdint>
12
13inline BSWAP_CONSTEXPR uint16_t htobe16_internal(uint16_t host_16bits)
14{
15    if constexpr (std::endian::native == std::endian::little) return internal_bswap_16(host_16bits);
16        else return host_16bits;
17}
18inline BSWAP_CONSTEXPR uint16_t htole16_internal(uint16_t host_16bits)
19{
20    if constexpr (std::endian::native == std::endian::big) return internal_bswap_16(host_16bits);
21        else return host_16bits;
22}
23inline BSWAP_CONSTEXPR uint16_t be16toh_internal(uint16_t big_endian_16bits)
24{
25    if constexpr (std::endian::native == std::endian::little) return internal_bswap_16(big_endian_16bits);
26        else return big_endian_16bits;
27}
28inline BSWAP_CONSTEXPR uint16_t le16toh_internal(uint16_t little_endian_16bits)
29{
30    if constexpr (std::endian::native == std::endian::big) return internal_bswap_16(little_endian_16bits);
31        else return little_endian_16bits;
32}
33inline BSWAP_CONSTEXPR uint32_t htobe32_internal(uint32_t host_32bits)
34{
35    if constexpr (std::endian::native == std::endian::little) return internal_bswap_32(host_32bits);
36        else return host_32bits;
37}
38inline BSWAP_CONSTEXPR uint32_t htole32_internal(uint32_t host_32bits)
39{
40    if constexpr (std::endian::native == std::endian::big) return internal_bswap_32(host_32bits);
41        else return host_32bits;
42}
43inline BSWAP_CONSTEXPR uint32_t be32toh_internal(uint32_t big_endian_32bits)
44{
45    if constexpr (std::endian::native == std::endian::little) return internal_bswap_32(big_endian_32bits);
46        else return big_endian_32bits;
47}
48inline BSWAP_CONSTEXPR uint32_t le32toh_internal(uint32_t little_endian_32bits)
49{
50    if constexpr (std::endian::native == std::endian::big) return internal_bswap_32(little_endian_32bits);
51        else return little_endian_32bits;
52}
53inline BSWAP_CONSTEXPR uint64_t htobe64_internal(uint64_t host_64bits)
54{
55    if constexpr (std::endian::native == std::endian::little) return internal_bswap_64(host_64bits);
56        else return host_64bits;
57}
58inline BSWAP_CONSTEXPR uint64_t htole64_internal(uint64_t host_64bits)
59{
60    if constexpr (std::endian::native == std::endian::big) return internal_bswap_64(host_64bits);
61        else return host_64bits;
62}
63inline BSWAP_CONSTEXPR uint64_t be64toh_internal(uint64_t big_endian_64bits)
64{
65    if constexpr (std::endian::native == std::endian::little) return internal_bswap_64(big_endian_64bits);
66        else return big_endian_64bits;
67}
68inline BSWAP_CONSTEXPR uint64_t le64toh_internal(uint64_t little_endian_64bits)
69{
70    if constexpr (std::endian::native == std::endian::big) return internal_bswap_64(little_endian_64bits);
71        else return little_endian_64bits;
72}
73
74#endif // BITCOIN_COMPAT_ENDIAN_H
75