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Rollup merge of #100337 - camelid:stabilize-io_read_to_string, r=JohnTitor

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Stabilize `std::io::read_to_string`

Closes #80218. 🎉

This PR stabilizes the `std::io::read_to_string` function, with the following public API:

```rust
pub fn read_to_string<R: Read>(reader: R) -> Result<String>;
```

It's analogous to `std::fs::read_to_string` for files, but it works on anything that implements `io::Read`, including `io::stdin()`.

See the tracking issue (#80218) or documentation for details.
This commit is contained in:
Dylan DPC 2022-08-29 16:49:42 +05:30 committed by GitHub
commit 9f7e20ba35
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1 changed files with 1 additions and 3 deletions
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4
library/std/src/io/mod.rs
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@ -1037,8 +1037,6 @@ pub trait Read {
/// # Examples
///
/// ```no_run
/// #![feature(io_read_to_string)]
///
/// # use std::io;
/// fn main() -> io::Result<()> {
/// let stdin = io::read_to_string(io::stdin())?;
@ -1047,7 +1045,7 @@ pub trait Read {
/// Ok(())
/// }
/// ```
#[unstable(feature = "io_read_to_string", issue = "80218")]
#[stable(feature = "io_read_to_string", since = "CURRENT_RUSTC_VERSION")]
pub fn read_to_string<R: Read>(mut reader: R) -> Result<String> {
let mut buf = String::new();
reader.read_to_string(&mut buf)?;