file_utils/conversions/
i.rs

1#[cfg(target_endian="big")]
2pub fn bytes_to_i16(x: &[u8; 2]) -> i16
3{
4    ((x[0] as i16) <<  8) +
5    ((x[1] as i16) <<  0)
6}
7
8#[cfg(target_endian="little")]
9pub fn bytes_to_i16(x: &[u8; 2]) -> i16
10{
11    ((x[1] as i16) <<  8) +
12    ((x[0] as i16) <<  0)
13}
14
15#[cfg(target_endian="big")]
16pub fn bytes_to_i32(x: &[u8; 4]) -> i32
17{
18    ((x[0] as i32) << 24) +
19    ((x[1] as i32) << 16) +
20    ((x[2] as i32) <<  8) +
21    ((x[3] as i32) <<  0)
22}
23
24#[cfg(target_endian="little")]
25pub fn bytes_to_i32(x: &[u8; 4]) -> i32
26{
27    ((x[3] as i32) << 24) +
28    ((x[2] as i32) << 16) +
29    ((x[1] as i32) <<  8) +
30    ((x[0] as i32) <<  0)
31}
32
33#[cfg(target_endian="big")]
34pub fn bytes_to_i64(x: &[u8; 8]) -> i64
35{
36    ((x[0] as i64) << 56) +
37    ((x[1] as i64) << 48) +
38    ((x[2] as i64) << 40) +
39    ((x[3] as i64) << 32) +
40    ((x[4] as i64) << 24) +
41    ((x[5] as i64) << 16) +
42    ((x[6] as i64) <<  8) +
43    ((x[7] as i64) <<  0)
44}
45
46#[cfg(target_endian="little")]
47pub fn bytes_to_i64(x: &[u8; 8]) -> i64
48{
49    ((x[7] as i64) << 56) +
50    ((x[6] as i64) << 48) +
51    ((x[5] as i64) << 40) +
52    ((x[4] as i64) << 32) +
53    ((x[3] as i64) << 24) +
54    ((x[2] as i64) << 16) +
55    ((x[1] as i64) <<  8) +
56    ((x[0] as i64) <<  0)
57}
58
59
60#[cfg(target_endian="big")]
61pub fn i16_to_bytes(x: i16) -> [u8; 2]
62{
63    [
64    	((x >>  8) & 0xff) as u8,
65    	((x >>  0) & 0xff) as u8
66	]
67}
68
69#[cfg(target_endian="little")]
70pub fn i16_to_bytes(x: i16) -> [u8; 2]
71{
72    [
73		((x >>  0) & 0xff) as u8,
74    	((x >>  8) & 0xff) as u8
75	]
76}
77
78#[cfg(target_endian="big")]
79pub fn i32_to_bytes(x: i32) -> [u8; 4]
80{
81    [
82		((x >> 24) & 0xff) as u8,
83    	((x >> 16) & 0xff) as u8,
84    	((x >>  8) & 0xff) as u8,
85    	((x >>  0) & 0xff) as u8
86	]
87}
88
89#[cfg(target_endian="little")]
90pub fn i32_to_bytes(x: i32) -> [u8; 4]
91{
92    [
93		((x >>  0) & 0xff) as u8,
94    	((x >>  8) & 0xff) as u8,
95    	((x >> 16) & 0xff) as u8,
96    	((x >> 24) & 0xff) as u8
97	]
98}
99
100#[cfg(target_endian="big")]
101pub fn i64_to_bytes(x: i64) -> [u8; 8]
102{
103    [
104		((x >> 56) & 0xff) as u8,
105    	((x >> 48) & 0xff) as u8,
106    	((x >> 40) & 0xff) as u8,
107    	((x >> 32) & 0xff) as u8,
108		((x >> 24) & 0xff) as u8,
109    	((x >> 16) & 0xff) as u8,
110    	((x >>  8) & 0xff) as u8,
111    	((x >>  0) & 0xff) as u8
112	]
113}
114
115#[cfg(target_endian="little")]
116pub fn i64_to_bytes(x: i64) -> [u8; 8]
117{
118    [
119		((x >>  0) & 0xff) as u8,
120    	((x >>  8) & 0xff) as u8,
121    	((x >> 16) & 0xff) as u8,
122    	((x >> 24) & 0xff) as u8,
123		((x >> 32) & 0xff) as u8,
124    	((x >> 40) & 0xff) as u8,
125    	((x >> 48) & 0xff) as u8,
126    	((x >> 56) & 0xff) as u8
127	]
128}
file_utils/conversions/i.rs

file_utils/conversions/
i.rs
