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| author | Ariel Ben-Yehuda <arielb1@mail.tau.ac.il> | 2017-03-08 20:54:10 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-03-08 20:54:10 +0200 |
| commit | f2886e8bda7d628ae0cc16e4fe579cbc2c6dc1b0 (patch) | |
| tree | 106965b8ea1a63c183f757c51bac4009d4033991 | |
| parent | aea8010098d6387f68440577b691e48e9ab5cc6a (diff) | |
| parent | f3a2f90c88c9d890b67955f0b88def40ce372914 (diff) | |
| download | rust-f2886e8bda7d628ae0cc16e4fe579cbc2c6dc1b0.tar.gz rust-f2886e8bda7d628ae0cc16e4fe579cbc2c6dc1b0.zip | |
Rollup merge of #40335 - tbu-:pr_doc_str_to_somecase, r=steveklabnik
Document why `str.to_{lower,upper}case` return `String`
Fixes #39201.
| -rw-r--r-- | src/libcollections/str.rs | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/libcollections/str.rs b/src/libcollections/str.rs index 87315fff0a0..e27c4577344 100644 --- a/src/libcollections/str.rs +++ b/src/libcollections/str.rs @@ -1646,6 +1646,10 @@ impl str { /// 'Lowercase' is defined according to the terms of the Unicode Derived Core Property /// `Lowercase`. /// + /// Since some characters can expand into multiple characters when changing + /// the case, this function returns a [`String`] instead of modifying the + /// parameter in-place. + /// /// [`String`]: string/struct.String.html /// /// # Examples @@ -1718,6 +1722,10 @@ impl str { /// 'Uppercase' is defined according to the terms of the Unicode Derived Core Property /// `Uppercase`. /// + /// Since some characters can expand into multiple characters when changing + /// the case, this function returns a [`String`] instead of modifying the + /// parameter in-place. + /// /// [`String`]: string/struct.String.html /// /// # Examples |