blob: c826b082adff1312a0139571d87a85b74f02655b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
#![warn(clippy::needless_range_loop, clippy::manual_memcpy)]
pub fn manual_copy_with_counters(src: &[i32], dst: &mut [i32], dst2: &mut [i32]) {
let mut count = 0;
for i in 3..src.len() {
dst[i] = src[count];
count += 1;
}
let mut count = 0;
for i in 3..src.len() {
dst[count] = src[i];
count += 1;
}
let mut count = 3;
for i in 0..src.len() {
dst[count] = src[i];
count += 1;
}
let mut count = 3;
for i in 0..src.len() {
dst[i] = src[count];
count += 1;
}
let mut count = 0;
for i in 3..(3 + src.len()) {
dst[i] = src[count];
count += 1;
}
let mut count = 3;
for i in 5..src.len() {
dst[i] = src[count - 2];
count += 1;
}
let mut count = 2;
for i in 0..dst.len() {
dst[i] = src[count];
count += 1;
}
let mut count = 5;
for i in 3..10 {
dst[i] = src[count];
count += 1;
}
let mut count = 3;
let mut count2 = 30;
for i in 0..src.len() {
dst[count] = src[i];
dst2[count2] = src[i];
count += 1;
count2 += 1;
}
// make sure parentheses are added properly to bitwise operators, which have lower precedence than
// arithmetic ones
let mut count = 0 << 1;
for i in 0..1 << 1 {
dst[count] = src[i + 2];
count += 1;
}
// make sure incrementing expressions without semicolons at the end of loops are handled correctly.
let mut count = 0;
for i in 3..src.len() {
dst[i] = src[count];
count += 1
}
// make sure ones where the increment is not at the end of the loop.
// As a possible enhancement, one could adjust the offset in the suggestion according to
// the position. For example, if the increment is at the top of the loop;
// treating the loop counter as if it were initialized 1 greater than the original value.
let mut count = 0;
#[allow(clippy::needless_range_loop)]
for i in 0..src.len() {
count += 1;
dst[i] = src[count];
}
}
fn main() {}
|