book/listings/ch19-advanced-features/no-listing-06-result-alias/src/lib.rs

16 lines
380 B
Rust

use std::fmt;
// ANCHOR: here
type Result<T> = std::result::Result<T, std::io::Error>;
// ANCHOR_END: here
// ANCHOR: there
pub trait Write {
fn write(&mut self, buf: &[u8]) -> Result<usize>;
fn flush(&mut self) -> Result<()>;
fn write_all(&mut self, buf: &[u8]) -> Result<()>;
fn write_fmt(&mut self, fmt: fmt::Arguments) -> Result<()>;
}
// ANCHOR_END: there