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Fix tidy errors and simplify example

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Nick Sweeting 2017-03-27 16:34:13 -04:00 committed by GitHub
parent 04fbec1a0c
commit 4806f01d7c
1 changed files with 6 additions and 8 deletions
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14
src/libstd/io/mod.rs
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@ -145,16 +145,14 @@
//! # }
//! ```
//!
//! Note that you cannot use the `?` operator in functions that do not return a `Result<T, E>` (e.g. `main`).
//! Instead, you can `match` on the return value to catch any possible errors:
//!
//! Note that you cannot use the `?` operator in functions that do not return
//! a `Result<T, E>` (e.g. `main`). Instead, you can call `.unwrap()` or `match`
//! on the return value to catch any possible errors:
//!
//! ```
//! let mut input = String::new();
//!
//! match io::stdin().read_line(&mut input) {
//! Err(why) => panic!("Failed to read input: {}", why.description()),
//! Ok(_) => println!("You typed: {}", input.trim()),
//! }
//!
//! io::stdin().read_line(&mut input).unwrap();
//! ```
//!
//! And a very common source of output is standard output: