|
4 | 4 | /// 如果系统是小端序,则直接返回;如果是大端序,则进行字节交换 |
5 | 5 | #[inline] |
6 | 6 | pub fn le16toh(val: u16) -> u16 { |
7 | | - if cfg!(target_endian = "little") { |
8 | | - val |
9 | | - } else { |
10 | | - val.swap_bytes() |
11 | | - } |
| 7 | + if cfg!(target_endian = "little") { |
| 8 | + val |
| 9 | + } else { |
| 10 | + val.swap_bytes() |
| 11 | + } |
12 | 12 | } |
13 | 13 |
|
14 | 14 | /// 将主机字节序的 16 位整数转换为小端序 |
15 | 15 | #[inline] |
16 | 16 | pub fn htole16(val: u16) -> u16 { |
17 | | - if cfg!(target_endian = "little") { |
18 | | - val |
19 | | - } else { |
20 | | - val.swap_bytes() |
21 | | - } |
| 17 | + if cfg!(target_endian = "little") { |
| 18 | + val |
| 19 | + } else { |
| 20 | + val.swap_bytes() |
| 21 | + } |
22 | 22 | } |
23 | 23 |
|
24 | 24 | /// 将大端序的 16 位整数转换为主机字节序 |
25 | 25 | #[inline] |
26 | 26 | pub fn be16toh(val: u16) -> u16 { |
27 | | - if cfg!(target_endian = "big") { |
28 | | - val |
29 | | - } else { |
30 | | - val.swap_bytes() |
31 | | - } |
| 27 | + if cfg!(target_endian = "big") { |
| 28 | + val |
| 29 | + } else { |
| 30 | + val.swap_bytes() |
| 31 | + } |
32 | 32 | } |
33 | 33 |
|
34 | 34 | /// 将主机字节序的 16 位整数转换为大端序 |
35 | 35 | #[inline] |
36 | 36 | pub fn htobe16(val: u16) -> u16 { |
37 | | - if cfg!(target_endian = "big") { |
38 | | - val |
39 | | - } else { |
40 | | - val.swap_bytes() |
41 | | - } |
| 37 | + if cfg!(target_endian = "big") { |
| 38 | + val |
| 39 | + } else { |
| 40 | + val.swap_bytes() |
| 41 | + } |
42 | 42 | } |
43 | 43 |
|
44 | 44 | /// 将小端序的 32 位整数转换为主机字节序 |
45 | 45 | #[inline] |
46 | 46 | pub fn le32toh(val: u32) -> u32 { |
47 | | - if cfg!(target_endian = "little") { |
48 | | - val |
49 | | - } else { |
50 | | - val.swap_bytes() |
51 | | - } |
| 47 | + if cfg!(target_endian = "little") { |
| 48 | + val |
| 49 | + } else { |
| 50 | + val.swap_bytes() |
| 51 | + } |
52 | 52 | } |
53 | 53 |
|
54 | 54 | /// 将主机字节序的 32 位整数转换为小端序 |
55 | 55 | #[inline] |
56 | 56 | pub fn htole32(val: u32) -> u32 { |
57 | | - if cfg!(target_endian = "little") { |
58 | | - val |
59 | | - } else { |
60 | | - val.swap_bytes() |
61 | | - } |
| 57 | + if cfg!(target_endian = "little") { |
| 58 | + val |
| 59 | + } else { |
| 60 | + val.swap_bytes() |
| 61 | + } |
62 | 62 | } |
63 | 63 |
|
64 | 64 | /// 将大端序的 32 位整数转换为主机字节序 |
65 | 65 | #[inline] |
66 | 66 | pub fn be32toh(val: u32) -> u32 { |
67 | | - if cfg!(target_endian = "big") { |
68 | | - val |
69 | | - } else { |
70 | | - val.swap_bytes() |
71 | | - } |
| 67 | + if cfg!(target_endian = "big") { |
| 68 | + val |
| 69 | + } else { |
| 70 | + val.swap_bytes() |
| 71 | + } |
72 | 72 | } |
73 | 73 |
|
74 | 74 | /// 将主机字节序的 32 位整数转换为大端序 |
75 | 75 | #[inline] |
76 | 76 | pub fn htobe32(val: u32) -> u32 { |
77 | | - if cfg!(target_endian = "big") { |
78 | | - val |
79 | | - } else { |
80 | | - val.swap_bytes() |
81 | | - } |
| 77 | + if cfg!(target_endian = "big") { |
| 78 | + val |
| 79 | + } else { |
| 80 | + val.swap_bytes() |
| 81 | + } |
82 | 82 | } |
83 | 83 |
|
84 | 84 | /// 将小端序的 64 位整数转换为主机字节序 |
85 | 85 | #[inline] |
86 | 86 | pub fn le64toh(val: u64) -> u64 { |
87 | | - if cfg!(target_endian = "little") { |
88 | | - val |
89 | | - } else { |
90 | | - val.swap_bytes() |
91 | | - } |
| 87 | + if cfg!(target_endian = "little") { |
| 88 | + val |
| 89 | + } else { |
| 90 | + val.swap_bytes() |
| 91 | + } |
92 | 92 | } |
93 | 93 |
|
94 | 94 | /// 将主机字节序的 64 位整数转换为小端序 |
95 | 95 | #[inline] |
96 | 96 | pub fn htole64(val: u64) -> u64 { |
97 | | - if cfg!(target_endian = "little") { |
98 | | - val |
99 | | - } else { |
100 | | - val.swap_bytes() |
101 | | - } |
| 97 | + if cfg!(target_endian = "little") { |
| 98 | + val |
| 99 | + } else { |
| 100 | + val.swap_bytes() |
| 101 | + } |
102 | 102 | } |
103 | 103 |
|
104 | 104 | /// 将大端序的 64 位整数转换为主机字节序 |
105 | 105 | #[inline] |
106 | 106 | pub fn be64toh(val: u64) -> u64 { |
107 | | - if cfg!(target_endian = "big") { |
108 | | - val |
109 | | - } else { |
110 | | - val.swap_bytes() |
111 | | - } |
| 107 | + if cfg!(target_endian = "big") { |
| 108 | + val |
| 109 | + } else { |
| 110 | + val.swap_bytes() |
| 111 | + } |
112 | 112 | } |
113 | 113 |
|
114 | 114 | /// 将主机字节序的 64 位整数转换为大端序 |
115 | 115 | #[inline] |
116 | 116 | pub fn htobe64(val: u64) -> u64 { |
117 | | - if cfg!(target_endian = "big") { |
118 | | - val |
119 | | - } else { |
120 | | - val.swap_bytes() |
121 | | - } |
| 117 | + if cfg!(target_endian = "big") { |
| 118 | + val |
| 119 | + } else { |
| 120 | + val.swap_bytes() |
| 121 | + } |
122 | 122 | } |
123 | 123 |
|
124 | 124 | #[cfg(test)] |
125 | 125 | mod tests { |
126 | | - use super::*; |
| 126 | + use super::*; |
127 | 127 |
|
128 | | - #[test] |
129 | | - fn test_le16toh() { |
130 | | - // 在小端序系统上,le16toh 应该直接返回原值 |
131 | | - let val = 0x1234u16; |
132 | | - assert_eq!(le16toh(val), val); |
133 | | - } |
| 128 | + #[test] |
| 129 | + fn test_le16toh() { |
| 130 | + // 在小端序系统上,le16toh 应该直接返回原值 |
| 131 | + let val = 0x1234u16; |
| 132 | + assert_eq!(le16toh(val), val); |
| 133 | + } |
134 | 134 |
|
135 | | - #[test] |
136 | | - fn test_htole16() { |
137 | | - let val = 0x1234u16; |
138 | | - assert_eq!(htole16(val), val); |
139 | | - } |
| 135 | + #[test] |
| 136 | + fn test_htole16() { |
| 137 | + let val = 0x1234u16; |
| 138 | + assert_eq!(htole16(val), val); |
| 139 | + } |
140 | 140 | } |
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