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Rollup merge of #32464 - GuillaumeGomez:patch-6, r=steveklabnik

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Improve some Option code example

Part of #29366.

r? @steveklabnik
This commit is contained in:
Steve Klabnik 2016-03-24 10:37:24 -04:00
commit b2dfb7c0a2
1 changed files with 3 additions and 7 deletions
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10
src/libcore/option.rs
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@ -93,16 +93,12 @@
//! let msg = Some("howdy"); //! let msg = Some("howdy");
//! //!
//! // Take a reference to the contained string //! // Take a reference to the contained string
//! match msg { //! if let Some(ref m) = msg {
//! Some(ref m) => println!("{}", *m), //! println!("{}", *m);
//! None => (),
//! } //! }
//! //!
//! // Remove the contained string, destroying the Option //! // Remove the contained string, destroying the Option
//! let unwrapped_msg = match msg { //! let unwrapped_msg = msg.unwrap_or("default message");
//! Some(m) => m,
//! None => "default message",
//! };
//! ``` //! ```
//! //!
//! Initialize a result to `None` before a loop: //! Initialize a result to `None` before a loop: