pub struct Stdin { /* fields omitted */ }
A handle to the standard input stream of a process.
Each handle is a shared reference to a global buffer of input data to this process. A handle can be lock'd to gain full access to BufRead methods (e.g., .lines()). Reads to this handle are otherwise locked with respect to other reads.
This handle implements the Read trait, but beware that concurrent reads of Stdin must be executed with care.
Created by the io::stdin method.
When operating in a console, the Windows implementation of this stream does not support non-UTF-8 byte sequences. Attempting to read bytes that are not valid UTF-8 will return an error.
use std::io::{self, Read};
fn main() -> io::Result<()> {
let mut buffer = String::new();
let mut stdin = io::stdin(); // We get `Stdin` here.
stdin.read_to_string(&mut buffer)?;
Ok(())
}impl Stdin[src]
pub fn lock(&self) -> StdinLock<'_>ⓘNotable traits for StdinLock<'_>
impl<'_> Read for StdinLock<'_>
[src]
Locks this handle to the standard input stream, returning a readable guard.
The lock is released when the returned lock goes out of scope. The returned guard also implements the Read and BufRead traits for accessing the underlying data.
use std::io::{self, Read};
fn main() -> io::Result<()> {
let mut buffer = String::new();
let stdin = io::stdin();
let mut handle = stdin.lock();
handle.read_to_string(&mut buffer)?;
Ok(())
}pub fn read_line(&self, buf: &mut String) -> Result<usize>[src]
Locks this handle and reads a line of input, appending it to the specified buffer.
For detailed semantics of this method, see the documentation on BufRead::read_line.
use std::io;
let mut input = String::new();
match io::stdin().read_line(&mut input) {
Ok(n) => {
println!("{} bytes read", n);
println!("{}", input);
}
Err(error) => println!("error: {}", error),
}You can run the example one of two ways:
printf foo | path/to/executable
impl AsRawFd for Stdin[src]1.21.0
impl AsRawHandle for Stdin[src]1.21.0
fn as_raw_handle(&self) -> RawHandle[src]
impl Debug for Stdin[src]1.16.0
impl Read for Stdin[src]
fn read(&mut self, buf: &mut [u8]) -> Result<usize>[src]
fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize>[src]
fn is_read_vectored(&self) -> bool[src]
unsafe fn initializer(&self) -> Initializer[src]
fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize>[src]
fn read_to_string(&mut self, buf: &mut String) -> Result<usize>[src]
fn read_exact(&mut self, buf: &mut [u8]) -> Result<()>[src]
fn by_ref(&mut self) -> &mut SelfⓘNotable traits for &'_ mut F
impl<'_, F> Future for &'_ mut F where
F: Unpin + Future + ?Sized,
type Output = <F as Future>::Output;
impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized,
type Item = <I as Iterator>::Item;
impl<R: Read + ?Sized, '_> Read for &'_ mut R
impl<W: Write + ?Sized, '_> Write for &'_ mut W
where
Self: Sized, [src]
fn bytes(self) -> Bytes<Self>ⓘNotable traits for Bytes<R>
impl<R: Read> Iterator for Bytes<R>
type Item = Result<u8>;
where
Self: Sized, [src]
fn chain<R: Read>(self, next: R) -> Chain<Self, R>ⓘNotable traits for Chain<T, U>
impl<T: Read, U: Read> Read for Chain<T, U>
where
Self: Sized, [src]
fn take(self, limit: u64) -> Take<Self>ⓘNotable traits for Take<T>
impl<T: Read> Read for Take<T>
where
Self: Sized, [src]
impl RefUnwindSafe for Stdinimpl Send for Stdinimpl Sync for Stdinimpl Unpin for Stdinimpl UnwindSafe for Stdinimpl<T> Any for T where
T: 'static + ?Sized, [src]
impl<T> Borrow<T> for T where
T: ?Sized, [src]
fn borrow(&self) -> &TⓘNotable traits for &'_ mut F
impl<'_, F> Future for &'_ mut F where
F: Unpin + Future + ?Sized,
type Output = <F as Future>::Output;
impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized,
type Item = <I as Iterator>::Item;
impl<R: Read + ?Sized, '_> Read for &'_ mut R
impl<W: Write + ?Sized, '_> Write for &'_ mut W
[src]
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
fn borrow_mut(&mut self) -> &mut TⓘNotable traits for &'_ mut F
impl<'_, F> Future for &'_ mut F where
F: Unpin + Future + ?Sized,
type Output = <F as Future>::Output;
impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized,
type Item = <I as Iterator>::Item;
impl<R: Read + ?Sized, '_> Read for &'_ mut R
impl<W: Write + ?Sized, '_> Write for &'_ mut W
[src]
impl<T> From<T> for T[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
impl<T, U> TryFrom<U> for T where
U: Into<T>, [src]
type Error = InfallibleThe type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/io/struct.Stdin.html