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Slight simplification of chars().count()

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Giles Cope 2021-01-26 11:14:57 +00:00
parent 9a9477fada
commit 328abfb943
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1 changed files with 5 additions and 4 deletions
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9
library/core/src/str/iter.rs
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@ -47,12 +47,13 @@ impl<'a> Iterator for Chars<'a> {
#[inline]
fn count(self) -> usize {
// length in `char` is equal to the number of non-continuation bytes
let bytes_len = self.iter.len();
let mut cont_bytes = 0;
let mut char_count = 0;
for &byte in self.iter {
cont_bytes += utf8_is_cont_byte(byte) as usize;
if !utf8_is_cont_byte(byte) {
char_count += 1;
}
}
bytes_len - cont_bytes
char_count
}
#[inline]