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| author | Corey Farwell <coreyf@rwell.org> | 2017-09-14 22:32:42 -0400 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-09-14 22:32:42 -0400 |
| commit | 592cafeb3df6e7aeb7d65a36be981f78b0f5e9e4 (patch) | |
| tree | f7fda520decf1afc6111cef500506e85336e0b15 | |
| parent | 27b1097ba09576e609419c27e7e208836aad9659 (diff) | |
| parent | 8adf50d90ecd7f7524e745c5d64edd203ebc737f (diff) | |
| download | rust-592cafeb3df6e7aeb7d65a36be981f78b0f5e9e4.tar.gz rust-592cafeb3df6e7aeb7d65a36be981f78b0f5e9e4.zip | |
Rollup merge of #44477 - napen123:master, r=frewsxcv
Add doc examples to str::from_utf8_unchecked_mut Fixes #44461
| -rw-r--r-- | src/libcore/str/mod.rs | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/libcore/str/mod.rs b/src/libcore/str/mod.rs index ce331608390..d4fef45ae4e 100644 --- a/src/libcore/str/mod.rs +++ b/src/libcore/str/mod.rs @@ -413,6 +413,19 @@ pub unsafe fn from_utf8_unchecked(v: &[u8]) -> &str { /// See the immutable version, [`from_utf8_unchecked()`][fromutf8], for more information. /// /// [fromutf8]: fn.from_utf8_unchecked.html +/// +/// # Examples +/// +/// Basic usage: +/// +/// ``` +/// use std::str; +/// +/// let mut heart = vec![240, 159, 146, 150]; +/// let heart = unsafe { str::from_utf8_unchecked_mut(&mut heart) }; +/// +/// assert_eq!("💖", heart); +/// ``` #[inline] #[stable(feature = "str_mut_extras", since = "1.20.0")] pub unsafe fn from_utf8_unchecked_mut(v: &mut [u8]) -> &mut str { |