Same instructions, but simpler.

2021-01-26 21:51:18 +00:00 · 2021-01-26 21:51:18 +00:00 · a623ea5301
commit a623ea5301
parent c07e5585b3
1 changed files with 1 additions and 1 deletions
--- a/library/core/src/str/iter.rs
+++ b/library/core/src/str/iter.rs
@ -47,7 +47,7 @@ fn next(&mut self) -> Option<char> {
    #[inline]
    fn count(self) -> usize {
        // length in `char` is equal to the number of non-continuation bytes
-        self.iter.map(|&byte| !utf8_is_cont_byte(byte) as usize).sum()
+        self.iter.filter(|&&byte| !utf8_is_cont_byte(byte)).count()
    }

    #[inline]