Uses old Rust 2015
| 0.1.0 |
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#31 in #peek
5KB
94 lines
Wrap an io::Read and provide check_eof().
Returns errors iff the underlying reader does.
Examples
use std::io::Read;
use peeky_read::PeekyRead;
let mut underlying = std::io::Cursor::new([0u8; 1]);
let mut reader = PeekyRead::new(&mut underlying);
// We're not at the EOF as there's bytes to read.
assert_eq!(false, reader.check_eof().unwrap());
let mut buf = [0u8; 32];
assert_eq!(1, reader.read(&mut buf).unwrap());
// We've read the only byte in the reader, so we're now at the EOF.
assert_eq!(true, reader.check_eof().unwrap());
peeky-read
A single-struct library providing PeekyRead.
PeekyRead takes ownership of an io::Read,
and provides a check_eof() -> io::Result<bool>.
This is accomplished by actually reading a single
byte from the underlying reader. The byte is stored,
and returned automatically by the next read(), so
nothing is lost, and the transition should be transparent.