bjoernager/rust
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Let's try the most idiomatic way.

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Giles Cope 2021-01-26 11:36:02 +00:00
parent 425a70a460
commit c07e5585b3
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1 changed files with 1 additions and 5 deletions
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6
library/core/src/str/iter.rs
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@ -47,11 +47,7 @@ impl<'a> Iterator for Chars<'a> {
#[inline]
fn count(self) -> usize {
// length in `char` is equal to the number of non-continuation bytes
let mut char_count = 0;
for &byte in self.iter {
char_count += !utf8_is_cont_byte(byte) as usize;
}
char_count
self.iter.map(|&byte| !utf8_is_cont_byte(byte) as usize).sum()
}
#[inline]