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| author | Chris Denton <chris@chrisdenton.dev> | 2024-04-08 11:42:16 +0000 |
|---|---|---|
| committer | Chris Denton <chris@chrisdenton.dev> | 2024-04-09 20:20:32 +0000 |
| commit | 19f04a7d6878fc4c258ba3d4374e81c8bbeca2e0 (patch) | |
| tree | ce040cb50004824470171cbc1e2a3605ac232489 /library/std/src/sys/pal/windows/api.rs | |
| parent | 952d432666e6b1a8c76c332375e3483213532670 (diff) | |
| download | rust-19f04a7d6878fc4c258ba3d4374e81c8bbeca2e0.tar.gz rust-19f04a7d6878fc4c258ba3d4374e81c8bbeca2e0.zip | |
Add comment on UTF-16 surrogates
Diffstat (limited to 'library/std/src/sys/pal/windows/api.rs')
| -rw-r--r-- | library/std/src/sys/pal/windows/api.rs | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/library/std/src/sys/pal/windows/api.rs b/library/std/src/sys/pal/windows/api.rs index 8613dba42d2..555ad581b85 100644 --- a/library/std/src/sys/pal/windows/api.rs +++ b/library/std/src/sys/pal/windows/api.rs @@ -68,6 +68,8 @@ pub const fn utf16_len(s: &str) -> usize { n => n as usize, }; i += utf8_len; + // Note that UTF-16 surrogates (U+D800 to U+DFFF) are not encodable as UTF-8, + // so (unlike with WTF-8) we don't have to worry about how they'll get re-encoded. len += if utf8_len < 4 { 1 } else { 2 }; } len |