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2015-05-05Rollup merge of #25074 - killercup:patch-10, r=alexcrichtonManish Goregaokar-19/+22
Sweeten the two main HashMap/HashSet examples from [here](http://doc.rust-lang.org/std/collections/struct.HashMap.html) and [here](http://doc.rust-lang.org/std/collections/struct.HashSet.html) with some deref and loop sugar. (I've only tested this using [this playpen][1].) [1]: https://play.rust-lang.org/?code=fn%20main()%20%7B%0A%20%20%20%20use%20std%3A%3Acollections%3A%3AHashMap%3B%0A%20%20%20%20%0A%20%20%20%20%2F%2F%20type%20inference%20lets%20us%20omit%20an%20explicit%20type%20signature%20(which%0A%20%20%20%20%2F%2F%20would%20be%20%60HashMap%3C%26str%2C%20%26str%3E%60%20in%20this%20example).%0A%20%20%20%20let%20mut%20book_reviews%20%3D%20HashMap%3A%3Anew()%3B%0A%20%20%20%20%0A%20%20%20%20%2F%2F%20review%20some%20books.%0A%20%20%20%20book_reviews.insert(%22Adventures%20of%20Huckleberry%20Finn%22%2C%20%20%20%20%22My%20favorite%20book.%22)%3B%0A%20%20%20%20book_reviews.insert(%22Grimms%27%20Fairy%20Tales%22%2C%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%22Masterpiece.%22)%3B%0A%20%20%20%20book_reviews.insert(%22Pride%20and%20Prejudice%22%2C%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%22Very%20enjoyable.%22)%3B%0A%20%20%20%20book_reviews.insert(%22The%20Adventures%20of%20Sherlock%20Holmes%22%2C%20%22Eye%20lyked%20it%20alot.%22)%3B%0A%20%20%20%20%0A%20%20%20%20%2F%2F%20check%20for%20a%20specific%20one.%0A%20%20%20%20if%20!book_reviews.contains_key(%26(%22Les%20Mis%C3%A9rables%22))%20%7B%0A%20%20%20%20%20%20%20%20println!(%22We%27ve%20got%20%7B%7D%20reviews%2C%20but%20Les%20Mis%C3%A9rables%20ain%27t%20one.%22%2C%0A%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20book_reviews.len())%3B%0A%20%20%20%20%7D%0A%20%20%20%20%0A%20%20%20%20%2F%2F%20oops%2C%20this%20review%20has%20a%20lot%20of%20spelling%20mistakes%2C%20let%27s%20delete%20it.%0A%20%20%20%20book_reviews.remove(%26(%22The%20Adventures%20of%20Sherlock%20Holmes%22))%3B%0A%20%20%20%20%0A%20%20%20%20%2F%2F%20look%20up%20the%20values%20associated%20with%20some%20keys.%0A%20%20%20%20let%20to_find%20%3D%20%5B%22Pride%20and%20Prejudice%22%2C%20%22Alice%27s%20Adventure%20in%20Wonderland%22%5D%3B%0A%20%20%20%20for%20book%20in%20to_find.iter()%20%7B%0A%20%20%20%20%20%20%20%20match%20book_reviews.get(book)%20%7B%0A%20%20%20%20%20%20%20%20%20%20%20%20Some(review)%20%3D%3E%20println!(%22%7B%7D%3A%20%7B%7D%22%2C%20*book%2C%20*review)%2C%0A%20%20%20%20%20%20%20%20%20%20%20%20None%20%3D%3E%20println!(%22%7B%7D%20is%20unreviewed.%22%2C%20*book)%0A%20%20%20%20%20%20%20%20%7D%0A%20%20%20%20%7D%0A%20%20%20%20%0A%20%20%20%20%2F%2F%20iterate%20over%20everything.%0A%20%20%20%20for%20(book%2C%20review)%20in%20book_reviews.iter()%20%7B%0A%20%20%20%20%20%20%20%20println!(%22%7B%7D%3A%20%5C%22%7B%7D%5C%22%22%2C%20*book%2C%20*review)%3B%0A%20%20%20%20%7D%0A%20%20%20%20%0A%7D
2015-05-04Auto merge of #24652 - achanda:ip-long, r=alexcrichtonbors-1/+27
2015-05-04doc: fix markupTshepang Lekhonkhobe-1/+2
2015-05-04std: Join threads in select! doctestAlex Crichton-2/+4
This test has deadlocked on Windows once or twice now and we've had lots of problems in the past of threads panicking when the process is being shut down. One of the two threads in this test is guaranteed to panic because of the `.unwrap()` on the `send` calls, so just call `recv` on both receivers after the test executes to ensure that both threads are dying/dead.
2015-05-04std: Fix {atime,mtime,ctime}_nsec accessorsAlex Crichton-3/+3
These all had a typo where they were accessing the seconds field, not the nanoseconds field.
2015-05-04Fix spelling errors in documentation.Joseph Crail-2/+2
2015-05-04Auto merge of #25078 - nham:std_net_impl_debug, r=alexcrichtonbors-1/+105
I'm uncertain whether the 3 implementations in `net2` should unwrap the socket address values. Without unwrapping it looks like this: ``` UdpSocket { addr: Ok(V4(127.0.0.1:34354)), inner: 3 } TcpListener { addr: Ok(V4(127.0.0.1:9123)), inner: 4 } TcpStream { addr: Ok(V4(127.0.0.1:9123)), peer: Ok(V4(127.0.0.1:58360)), inner: 5 } ``` One issue is that you can create, e.g. `UdpSocket`s with bad addresses, which means you can't just unwrap in the implementation: ``` #![feature(from_raw_os)] use std::net::UdpSocket; use std::os::unix::io::FromRawFd; let sock: UdpSocket = unsafe { FromRawFd::from_raw_fd(-1) }; println!("{:?}", sock); // prints "UdpSocket { addr: Err(Error { repr: Os(9) }), inner: -1 }" ``` Fixes #23134.
2015-05-04Auto merge of #25044 - tshepang:doc-addr, r=alexcrichtonbors-10/+18
2015-05-03Add functions to convert IPv4 to long and backAbhishek Chanda-1/+27
2015-05-03Add tests for 3 Debug implementationsNick Hamann-0/+37
2015-05-03Change 'inner' field name to 'fd'/'socket' on Unix/Windows in Debug implsNick Hamann-3/+6
2015-05-03Unwrap address values in Debug implementations for ↵Nick Hamann-13/+28
TcpStream/TcpListener/UdpSocket. This now omits address fields in Debug implementations when a proper address value cannot be unwrapped.
2015-05-03Auto merge of #25070 - dotdash:inline_hash, r=alexcrichtonbors-0/+1
Since the hashmap and its hasher are implemented in different crates, we currently can't benefit from inlining, which means that especially for small, fixed size keys, there is a huge overhead in hash calculations, because the compiler can't apply optimizations that only apply for these keys. Fixes the brainfuck benchmark in #24014.
2015-05-03Fix Derive Notice for HashSetPascal Hertleif-2/+2
2015-05-03Fix Derive Notice for HashMapPascal Hertleif-2/+3
2015-05-03Implement Debug for std::net::{UdpSocket,TcpStream,TcpListener,Shutdown}Nick Hamann-1/+50
Fixes #23134.
2015-05-03Auto merge of #24737 - P1start:dst-cell, r=alexcrichtonbors-34/+63
This + DST coercions (#24619) would allow code like `Rc<RefCell<Box<Trait>>>` to be simplified to `Rc<RefCell<Trait>>`.
2015-05-03Clean up HashSet ExamplesPascal Hertleif-5/+5
2015-05-03HashSet Docs: Split First ParagraphPascal Hertleif-4/+6
This way, the module index renders only the first sentence as a short description.
2015-05-03Clean up HashMap examplesPascal Hertleif-8/+8
2015-05-03Restore HashMap performance by allowing some functions to be inlinedBjörn Steinbrink-0/+1
Since the hashmap and its hasher are implemented in different crates, we currently can't benefit from inlining, which means that especially for small, fixed size keys, there is a huge overhead in hash calculations, because the compiler can't apply optimizations that only apply for these keys. Fixes the brainfuck benchmark in #24014.
2015-05-03doc: improve IpAddr is_global and is_unicast_globalTshepang Lekhonkhobe-10/+18
2015-05-02Auto merge of #25015 - alexcrichton:rwlock-check-ret, r=aturonbors-12/+29
Apparently implementations are allowed to return EDEADLK instead of blocking forever, in which case this can lead to unsafety in the `RwLock` primitive exposed by the standard library. A debug-build of the standard library would have caught this error (due to the debug assert), but we don't ship debug builds right now. This commit adds explicit checks for the EDEADLK error code and triggers a panic to ensure the call does not succeed. Closes #25012
2015-05-02Auto merge of #24792 - alexcrichton:issue-24748, r=alexcrichtonbors-35/+6
Ensures that the same error type is propagated throughout. Unnecessary leakage of the internals is prevented through the usage of stability attributes. Closes #24748
2015-05-01std: Don't use a wrapper for the float error typeAlex Crichton-35/+6
Ensures that the same error type is propagated throughout. Unnecessary leakage of the internals is prevented through the usage of stability attributes. Closes #24748
2015-05-01Auto merge of #25006 - alexcrichton:unstable-indexing, r=aturonbors-6/+5
These implementations were intended to be unstable, but currently the stability attributes cannot handle a stable trait with an unstable `impl` block. This commit also audits the rest of the standard library for explicitly-`#[unstable]` impl blocks. No others were removed but some annotations were changed to `#[stable]` as they're defacto stable anyway. One particularly interesting `impl` marked `#[stable]` as part of this commit is the `Add<&[T]>` impl for `Vec<T>`, which uses `push_all` and implicitly clones all elements of the vector provided. Closes #24791 [breaking-change]
2015-05-02Make `UnsafeCell`, `RefCell`, `Mutex`, and `RwLock` accept DSTsP1start-34/+63
This + DST coercions (#24619) would allow code like `Rc<RefCell<Box<Trait>>>` to be simplified to `Rc<RefCell<Trait>>`.
2015-05-01std: Remove index notation on slice iteratorsAlex Crichton-6/+5
These implementations were intended to be unstable, but currently the stability attributes cannot handle a stable trait with an unstable `impl` block. This commit also audits the rest of the standard library for explicitly-`#[unstable]` impl blocks. No others were removed but some annotations were changed to `#[stable]` as they're defacto stable anyway. One particularly interesting `impl` marked `#[stable]` as part of this commit is the `Add<&[T]>` impl for `Vec<T>`, which uses `push_all` and implicitly clones all elements of the vector provided. Closes #24791
2015-05-01Rollup merge of #25021 - frewsxcv:an-utf, r=steveklabnikManish Goregaokar-5/+5
Even spelled out, one would say 'a Universal Character Set'
2015-05-01Rollup merge of #25020 - brson:current_dir, r=luqmanaManish Goregaokar-1/+1
2015-05-01Rollup merge of #25014 - frewsxcv:patch-20, r=alexcrichtonManish Goregaokar-1/+1
The variable doesn't need to be mutable.
2015-05-01Rollup merge of #24988 - semarie:unused-pid_t, r=alexcrichtonManish Goregaokar-3/+3
- unbreak the build under openbsd - while here, apply same modification to dragonfly, freebsd, ios (pid_t imported, but not used in raw.rs) r? @alexcrichton cc @wg @mneumann @vhbit
2015-05-01Rollup merge of #24983 - vhbit:ios-raw, r=sanxiynManish Goregaokar-1/+1
2015-04-30Replaces instanced of 'an UTF' with 'a UTF'Corey Farwell-5/+5
Even spelled out, one would say 'a Universal Character Set'
2015-04-30Add downcasting to std::error::ErrorAaron Turon-12/+134
This commit brings the `Error` trait in line with the [Error interoperation RFC](https://github.com/rust-lang/rfcs/pull/201) by adding downcasting, which has long been intended. This change means that for any `Error` trait objects that are `'static`, you can downcast to concrete error types. To make this work, it is necessary for `Error` to inherit from `Reflect` (which is currently used to mark concrete types as "permitted for reflection, aka downcasting"). This is a breaking change: it means that impls like ```rust impl<T> Error for MyErrorType<T> { ... } ``` must change to something like ```rust impl<T: Reflect> Error for MyErrorType<T> { ... } ``` except that `Reflect` is currently unstable (and should remain so for the time being). For now, code can instead bound by `Any`: ```rust impl<T: Any> Error for MyErrorType<T> { ... } ``` which *is* stable and has `Reflect` as a super trait. The downside is that this imposes a `'static` constraint, but that only constrains *when* `Error` is implemented -- it does not actually constrain the types that can implement `Error`. [breaking-change]
2015-04-30doc: current_dir returns a PathBuf, not a PathBrian Anderson-1/+1
2015-04-30std: Always check for EDEADLK in rwlocks on unixAlex Crichton-2/+24
Apparently implementations are allowed to return EDEADLK instead of blocking forever, in which case this can lead to unsafety in the `RwLock` primitive exposed by the standard library. A debug-build of the standard library would have caught this error (due to the debug assert), but we don't ship debug builds right now. This commit adds explicit checks for the EDEADLK error code and triggers a panic to ensure the call does not succeed. Closes #25012
2015-04-30std: Favor cfg! over #[cfg] in unix rwlocksAlex Crichton-10/+5
2015-04-30Remove unnecessary 'mut' qualifier on doc-comment varCorey Farwell-1/+1
The variable doesn't need to be mutable.
2015-04-30std: Destabilize io::BufStreamAlex Crichton-10/+18
As pointed out in #17136 the semantics of a `BufStream` aren't always what one expects, and it looks like other [languages like C#][c-sharp] implement a buffered stream with only one underlying buffer. For now this commit destabilizes the primitive in the `std::io` module to give us some more time in figuring out what to do with it. [c-sharp]: https://msdn.microsoft.com/en-us/library/system.io.bufferedstream%28v=vs.110%29.aspx [breaking-change]
2015-04-30remove denied unused import: pid_t in rawSébastien Marie-4/+4
- unbreak the build under openbsd - while here, apply same modification to dragonfly, freebsd, ios (pid_t imported, but not used in raw.rs)
2015-04-30Fixed iOS buildValerii Hiora-1/+1
2015-04-30Auto merge of #24960 - tynopex:patch-doc, r=alexcrichtonbors-13/+16
- Removed misleading comments about now-defunct CreatePipe - Actually use std::process::Child in it's example - Minor cleanups
2015-04-29Test fixes and rebase conflictsAlex Crichton-1/+0
2015-04-29rollup merge of #24921: tamird/bitflags-associated-constAlex Crichton-10/+10
Conflicts: src/librustc/lib.rs
2015-04-29rollup merge of #24873: alexcrichton/fix-windows-stdioAlex Crichton-177/+138
Conflicts: src/libstd/sys/windows/fs2.rs
2015-04-29rollup merge of #24961: nham/net_docs_cleanupAlex Crichton-39/+39
Changes made include adding missing punctuation, adding missing words, and converting uses of "Gets" to "Returns" in libstd/net/addr.rs to make it more consistent with the other documentation. Fixes #24925.
2015-04-29rollup merge of #24926: frewsxcv/patch-20Alex Crichton-1/+1
2015-04-29rollup merge of #24908: inrustwetrust/once_memory_orderingAlex Crichton-1/+5
`call_once` guarantees that there is a happens-before relationship between its closure and code following it via the sequentially consistent atomic store/loads of `self.cnt`.
2015-04-29rollup merge of #24904: steveklabnik/remove_std_net_warningAlex Crichton-4/+1
This is served by stability markers.
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