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# Async version of Rust's standard library
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https://github.com/async-rs/async-std)
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[](https://crates.io/crates/async-std)
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This crate provides an async version of [`std`]. It provides all the interfaces you are used to, but in an async version and ready for Rust's `async/await` -syntax.
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[`std`]: https://doc.rust-lang.org/std/index.html
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## Documentation
`async-std` comes with [extensive API domentation][docs] and a [book][book].
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[docs]: https://docs.rs/async-std
[book]: https://book.async.rs
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## Quickstart
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Add the following lines to you `Cargo.toml` :
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```toml
[dependencies]
async-std = "0.99"
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```
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Or use [cargo add][cargo-add] if you have it installed:
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```sh
$ cargo add async-std
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```
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[cargo add]: https://github.com/killercup/cargo-edit
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## Hello world
```rust
#![feature(async_await)]
use async_std::task;
fn main() {
task::block_on(async {
println!("Hello, world!");
})
}
```
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## Take a look around
Clone the repo:
```
git clone git@github.com:stjepang/async-std.git & & cd async-std
```
Read the docs:
```
cargo doc --features docs.rs --open
```
Check out the [examples ](examples ). To run an example:
```
cargo run --example hello-world
```
## Contributing
See [our contribution document][contribution].
[contribution]: https://async.rs/contribute
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## License
Licensed under either of
* Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
* MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
at your option.
#### Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
dual licensed as above, without any additional terms or conditions.