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Remove redundant len binding

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This commit is contained in:
Lzu Tao 2020-07-13 09:34:34 +00:00
parent ac48e62db8
commit a5d0c2c174
1 changed files with 1 additions and 3 deletions
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4
library/std/src/sys/windows/mod.rs
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@ -99,11 +99,10 @@ pub fn decode_error_kind(errno: i32) -> ErrorKind {
pub fn unrolled_find_u16s(needle: u16, haystack: &[u16]) -> Option<usize> {
let ptr = haystack.as_ptr();
let mut len = haystack.len();
let mut start = &haystack[..];
// For performance reasons unfold the loop eight times.
while len >= 8 {
while start.len() >= 8 {
if start[0] == needle {
return Some((start.as_ptr() as usize - ptr as usize) / 2);
}
@ -130,7 +129,6 @@ pub fn unrolled_find_u16s(needle: u16, haystack: &[u16]) -> Option<usize> {
}
start = &start[8..];
len -= 8;
}
for (i, c) in start.iter().enumerate() {