---

yaml
---
r: 195127
b: refs/heads/beta
c: 9147463
h: refs/heads/master
i:
  195125: 1d43a99
  195123: 49895f3
  195119: be7d44e
v: v3

Author: Manishearth

[refs]

@@ -31,7 +31,7 @@ refs/heads/automation-fail: 1bf06495443584539b958873e04cc2f864ab10e4
 refs/heads/issue-18208-method-dispatch-3-quick-reject: 2009f85b9f99dedcec4404418eda9ddba90258a2
 refs/heads/batch: b7fd822592a4fb577552d93010c4a4e14f314346
 refs/heads/building: 126db549b038c84269a1e4fe46f051b2c15d6970
-refs/heads/beta: 58c7d6f3e1dc3c09d7362d5dffbecc8d37ad483a
+refs/heads/beta: 9147463678341db09c36d1a24a643b8ba4e3be73
 refs/heads/windistfix: 7608dbad651f02e837ed05eef3d74a6662a6e928
 refs/tags/1.0.0-alpha: e42bd6d93a1d3433c486200587f8f9e12590a4d7
 refs/heads/tmp: be7f6ac7008f8ddf980ac07026b05bdd865f29cc

branches/beta/AUTHORS.txt

@@ -606,7 +606,7 @@ Peter Schuller <[email protected]>
 Peter Williams <[email protected]>
 Peter Zotov <[email protected]>
 Petter Remen <[email protected]>
-Phil Dawes <[email protected]>
+Phil Dawes <[email protected]>
 Phil Ruffwind <[email protected]>
 Philip Munksgaard <[email protected]>
 Philipp Brüschweiler <[email protected]>

branches/beta/src/doc/trpl/SUMMARY.md

@@ -13,7 +13,6 @@
     * [Looping](looping.md)
     * [Strings](strings.md)
     * [Arrays, Vectors, and Slices](arrays-vectors-and-slices.md)
-    * [Standard Input](standard-input.md)
 * [Intermediate Rust](intermediate.md)
     * [Crates and Modules](crates-and-modules.md)
     * [Testing](testing.md)

branches/beta/src/doc/trpl/standard-input.md

@@ -50,8 +50,8 @@
 //!
 //! ## Iteration
 //!
-//! The slices implement `IntoIterator`. The iterators of yield references
-//! to the slice elements.
+//! The slices implement `IntoIterator`. The iterator yields references to the
+//! slice elements.
 //!
 //! ```
 //! let numbers = &[0, 1, 2];

branches/beta/src/libcollections/slice.rs

@@ -73,6 +73,16 @@ mod sip;
 ///
 /// The `H` type parameter is an abstract hash state that is used by the `Hash`
 /// to compute the hash.
+///
+/// If you are also implementing `Eq`, there is an additional property that
+/// is important:
+///
+/// ```text
+/// k1 == k2 -> hash(k1) == hash(k2)
+/// ```
+///
+/// In other words, if two keys are equal, their hashes should also be equal.
+/// `HashMap` and `HashSet` both rely on this behavior.
 #[stable(feature = "rust1", since = "1.0.0")]
 pub trait Hash {
     /// Feeds this value into the state given, updating the hasher as necessary.

branches/beta/src/libcore/hash/mod.rs

@@ -307,7 +307,10 @@ pub mod types {
                 #[derive(Copy)] pub struct sockaddr_storage {
                     pub ss_family: sa_family_t,
                     pub __ss_align: isize,
-                    pub __ss_pad2: [u8; 128 - 2 * (::core::isize::BYTES as usize)],
+                    #[cfg(target_pointer_width = "32")]
+                    pub __ss_pad2: [u8; 128 - 2 * 4],
+                    #[cfg(target_pointer_width = "64")]
+                    pub __ss_pad2: [u8; 128 - 2 * 8],
                 }
                 #[repr(C)]
                 #[derive(Copy)] pub struct sockaddr_in {

branches/beta/src/liblibc/lib.rs

@@ -214,7 +214,14 @@ fn test_resize_policy() {
 /// overridden with one of the constructors.
 ///
 /// It is required that the keys implement the `Eq` and `Hash` traits, although
-/// this can frequently be achieved by using `#[derive(Eq, Hash)]`.
+/// this can frequently be achieved by using `#[derive(Eq, Hash)]`. If you
+/// implement these yourself, it is important that the following property holds:
+///
+/// ```text
+/// k1 == k2 -> hash(k1) == hash(k2)
+/// ```
+///
+/// In other words, if two keys are equal, their hashes must be equal.
 ///
 /// It is a logic error for a key to be modified in such a way that the key's
 /// hash, as determined by the `Hash` trait, or its equality, as determined by

branches/beta/src/libstd/collections/hash/map.rs

@@ -34,7 +34,16 @@ use super::state::HashState;
 
 /// An implementation of a hash set using the underlying representation of a
 /// HashMap where the value is (). As with the `HashMap` type, a `HashSet`
-/// requires that the elements implement the `Eq` and `Hash` traits.
+/// requires that the elements implement the `Eq` and `Hash` traits. This can
+/// frequently be achieved by using `#[derive(Eq, Hash)]`. If you implement
+/// these yourself, it is important that the following property holds:
+///
+/// ```text
+/// k1 == k2 -> hash(k1) == hash(k2)
+/// ```
+///
+/// In other words, if two keys are equal, their hashes must be equal.
+///
 ///
 /// It is a logic error for an item to be modified in such a way that the
 /// item's hash, as determined by the `Hash` trait, or its equality, as