//!
//! Last, but certainly not least, is [`io::Result`]. This type is used
//! as the return type of many `std::io` functions that can cause an error, and
-//! can be returned from your own functions as well.
+//! can be returned from your own functions as well. Many of the examples in this
+//! module use the [`?` operator]:
//!
//! ```
//! use std::io;
//! [`println!`]: ../macro.println.html
//! [`Lines`]: struct.Lines.html
//! [`io::Result`]: type.Result.html
+//! [`?` operator]: ../../book/syntax-index.html
//! [`read()`]: trait.Read.html#tymethod.read
#![stable(feature = "rust1", since = "1.0.0")]