Merge pull request #542 from yjhmelody/update-doc

update doc url

docs/src/overview/std-and-library-futures.md

@@ -4,11 +4,11 @@ Rust has two kinds of types commonly referred to as `Future`:
 
 
 - the first is `std::future::Future` from Rust’s [standard library](https://doc.rust-lang.org/std/future/trait.Future.html). 
-- the second is `futures::future::Future` from the [futures-rs crate](https://docs.rs/futures-preview/0.3.0-alpha.17/futures/prelude/trait.Future.html), currently released as `futures-preview`. 
+- the second is `futures::future::Future` from the [futures-rs crate](https://docs.rs/futures/0.3/futures/prelude/trait.Future.html). 
 
-The future defined in the [futures-rs](https://docs.rs/futures-preview/0.3.0-alpha.17/futures/prelude/trait.Future.html) crate was the original implementation of the type. To enable the `async/await` syntax, the core Future trait was moved into Rust’s standard library and became `std::future::Future`. In some sense, the `std::future::Future` can be seen as a minimal subset of `futures::future::Future`.
+The future defined in the [futures-rs](https://docs.rs/futures/0.3/futures/prelude/trait.Future.html) crate was the original implementation of the type. To enable the `async/await` syntax, the core Future trait was moved into Rust’s standard library and became `std::future::Future`. In some sense, the `std::future::Future` can be seen as a minimal subset of `futures::future::Future`.
 
-It is critical to understand the difference between `std::future::Future` and `futures::future::Future`, and the approach that `async-std` takes towards them. In itself, `std::future::Future` is not something you want to interact with as a user—except by calling `.await` on it. The inner workings of `std::future::Future` are mostly of interest to people implementing `Future`. Make no mistake—this is very useful! Most of the functionality that used to be defined on `Future` itself has been moved to an extension trait called [`FuturesExt`](https://docs.rs/futures-preview/0.3.0-alpha.17/futures/future/trait.FutureExt.html). From this information, you might be able to infer that the `futures` library serves as an extension to the core Rust async features.
+It is critical to understand the difference between `std::future::Future` and `futures::future::Future`, and the approach that `async-std` takes towards them. In itself, `std::future::Future` is not something you want to interact with as a user—except by calling `.await` on it. The inner workings of `std::future::Future` are mostly of interest to people implementing `Future`. Make no mistake—this is very useful! Most of the functionality that used to be defined on `Future` itself has been moved to an extension trait called [`FuturesExt`](https://docs.rs/futures/0.3/futures/future/trait.FutureExt.html). From this information, you might be able to infer that the `futures` library serves as an extension to the core Rust async features.
 
 In the same tradition as `futures`, `async-std` re-exports the core `std::future::Future` type. You can actively opt into the extensions provided by the `futures-preview` crate by adding it to your `Cargo.toml` and importing `FuturesExt`.
 

src/io/buf_read/mod.rs

@@ -34,7 +34,7 @@ extension_trait! {
 
         [`std::io::BufRead`]: https://doc.rust-lang.org/std/io/trait.BufRead.html
         [`futures::io::AsyncBufRead`]:
-        https://docs.rs/futures-preview/0.3.0-alpha.17/futures/io/trait.AsyncBufRead.html
+        https://docs.rs/futures/0.3/futures/io/trait.AsyncBufRead.html
         [provided methods]: #provided-methods
         [`BufReadExt`]: ../io/prelude/trait.BufReadExt.html
         [prelude]: ../prelude/index.html

src/io/read/mod.rs

@@ -40,7 +40,7 @@ extension_trait! {
 
         [`std::io::Read`]: https://doc.rust-lang.org/std/io/trait.Read.html
         [`futures::io::AsyncRead`]:
-        https://docs.rs/futures-preview/0.3.0-alpha.17/futures/io/trait.AsyncRead.html
+        https://docs.rs/futures/0.3/futures/io/trait.AsyncRead.html
         [`poll_read`]: #tymethod.poll_read
         [`poll_read_vectored`]: #method.poll_read_vectored
         [`ReadExt`]: ../io/prelude/trait.ReadExt.html

src/io/seek/mod.rs

@@ -27,7 +27,7 @@ extension_trait! {
 
         [`std::io::Seek`]: https://doc.rust-lang.org/std/io/trait.Seek.html
         [`futures::io::AsyncSeek`]:
-        https://docs.rs/futures-preview/0.3.0-alpha.17/futures/io/trait.AsyncSeek.html
+        https://docs.rs/futures/0.3/futures/io/trait.AsyncSeek.html
         [provided methods]: #provided-methods
         [`SeekExt`]: ../io/prelude/trait.SeekExt.html
         [prelude]: ../prelude/index.html

src/io/write/mod.rs

@@ -35,7 +35,7 @@ extension_trait! {
 
         [`std::io::Write`]: https://doc.rust-lang.org/std/io/trait.Write.html
         [`futures::io::AsyncWrite`]:
-        https://docs.rs/futures-preview/0.3.0-alpha.17/futures/io/trait.AsyncWrite.html
+        https://docs.rs/futures/0.3/futures/io/trait.AsyncWrite.html
         [`poll_write`]: #tymethod.poll_write
         [`poll_write_vectored`]: #method.poll_write_vectored
         [`poll_flush`]: #tymethod.poll_flush

src/net/tcp/stream.rs

@@ -22,9 +22,9 @@ use crate::task::{spawn_blocking, Context, Poll};
 /// [`connect`]: struct.TcpStream.html#method.connect
 /// [accepting]: struct.TcpListener.html#method.accept
 /// [listener]: struct.TcpListener.html
-/// [`AsyncRead`]: https://docs.rs/futures-preview/0.3.0-alpha.17/futures/io/trait.AsyncRead.html
-/// [`AsyncWrite`]: https://docs.rs/futures-preview/0.3.0-alpha.17/futures/io/trait.AsyncWrite.html
-/// [`futures::io`]: https://docs.rs/futures-preview/0.3.0-alpha.17/futures/io/index.html
+/// [`AsyncRead`]: https://docs.rs/futures/0.3/futures/io/trait.AsyncRead.html
+/// [`AsyncWrite`]: https://docs.rs/futures/0.3/futures/io/trait.AsyncWrite.html
+/// [`futures::io`]: https://docs.rs/futures/0.3/futures/io/index.html
 /// [`shutdown`]: struct.TcpStream.html#method.shutdown
 /// [`std::net::TcpStream`]: https://doc.rust-lang.org/std/net/struct.TcpStream.html
 ///

src/stream/stream/mod.rs

@@ -157,7 +157,7 @@ extension_trait! {
 
         [`std::iter::Iterator`]: https://doc.rust-lang.org/std/iter/trait.Iterator.html
         [`futures::stream::Stream`]:
-        https://docs.rs/futures-preview/0.3.0-alpha.17/futures/stream/trait.Stream.html
+        https://docs.rs/futures/0.3/futures/stream/trait.Stream.html
         [provided methods]: #provided-methods
         [`StreamExt`]: ../prelude/trait.StreamExt.html
         [prelude]: ../prelude/index.html