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Add an example of std::str::encode_utf16 #44521

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Sep 15, 2017
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Add an example of std::str::encode_utf16 #44521

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13 changes: 13 additions & 0 deletions src/liballoc/str.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -855,6 +855,19 @@ impl str {
}

/// Returns an iterator of `u16` over the string encoded as UTF-16.
///
/// # Examples
///
/// Basic usage:
///
/// ```
/// let text = "Zażółć gęślą jaźń";
///
/// let utf8_len = text.len();
/// let utf16_len = text.encode_utf16().count();
///
/// assert!(utf16_len <= utf8_len);
/// ```
#[stable(feature = "encode_utf16", since = "1.8.0")]
pub fn encode_utf16(&self) -> EncodeUtf16 {
EncodeUtf16 { encoder: Utf16Encoder::new(self[..].chars()) }
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