1#pragma once
2
3#include <features.h>
4
5#define __LITTLE_ENDIAN 1234
6#define __BIG_ENDIAN 4321
7#define __PDP_ENDIAN 3412
8
9#if defined(__GNUC__) && defined(__BYTE_ORDER__)
10#define __BYTE_ORDER __BYTE_ORDER__
11#else
12#include <bits/endian.h>
13#endif
14
15#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
16
17#define BIG_ENDIAN __BIG_ENDIAN
18#define LITTLE_ENDIAN __LITTLE_ENDIAN
19#define PDP_ENDIAN __PDP_ENDIAN
20#define BYTE_ORDER __BYTE_ORDER
21
22#include <stdint.h>
23
24static __inline uint16_t __bswap16(uint16_t __x) {
25    return (uint16_t)(__x << 8 | __x >> 8);
26}
27
28static __inline uint32_t __bswap32(uint32_t __x) {
29    return (uint32_t)(__x >> 24 | ((__x >> 8) & 0xff00) | ((__x << 8) & 0xff0000) | __x << 24);
30}
31
32static __inline uint64_t __bswap64(uint64_t __x) {
33    return ((uint64_t)__bswap32((uint32_t)__x)) << 32 | (uint64_t)__bswap32((uint32_t)(__x >> 32));
34}
35
36#if __BYTE_ORDER == __LITTLE_ENDIAN
37#define htobe16(x) __bswap16(x)
38#define be16toh(x) __bswap16(x)
39#define betoh16(x) __bswap16(x)
40#define htobe32(x) __bswap32(x)
41#define be32toh(x) __bswap32(x)
42#define betoh32(x) __bswap32(x)
43#define htobe64(x) __bswap64(x)
44#define be64toh(x) __bswap64(x)
45#define betoh64(x) __bswap64(x)
46#define htole16(x) (uint16_t)(x)
47#define le16toh(x) (uint16_t)(x)
48#define letoh16(x) (uint16_t)(x)
49#define htole32(x) (uint32_t)(x)
50#define le32toh(x) (uint32_t)(x)
51#define letoh32(x) (uint32_t)(x)
52#define htole64(x) (uint64_t)(x)
53#define le64toh(x) (uint64_t)(x)
54#define letoh64(x) (uint64_t)(x)
55#else
56#define htobe16(x) (uint16_t)(x)
57#define be16toh(x) (uint16_t)(x)
58#define betoh16(x) (uint16_t)(x)
59#define htobe32(x) (uint32_t)(x)
60#define be32toh(x) (uint32_t)(x)
61#define betoh32(x) (uint32_t)(x)
62#define htobe64(x) (uint64_t)(x)
63#define be64toh(x) (uint64_t)(x)
64#define betoh64(x) (uint64_t)(x)
65#define htole16(x) __bswap16(x)
66#define le16toh(x) __bswap16(x)
67#define letoh16(x) __bswap16(x)
68#define htole32(x) __bswap32(x)
69#define le32toh(x) __bswap32(x)
70#define letoh32(x) __bswap32(x)
71#define htole64(x) __bswap64(x)
72#define le64toh(x) __bswap64(x)
73#define letoh64(x) __bswap64(x)
74#endif
75
76#endif
77