---

yaml
---
r: 224525
b: refs/heads/beta
c: 5f02de3
h: refs/heads/master
i:
  224523: 41c6244
v: v3

Author: Gankra

[refs]

@@ -23,7 +23,7 @@ refs/tags/0.9: 36870b185fc5f5486636d4515f0e22677493f225
 refs/tags/0.10: ac33f2b15782272ae348dbd7b14b8257b2148b5a
 refs/tags/0.11.0: e1247cb1d0d681be034adb4b558b5a0c0d5720f9
 refs/tags/0.12.0: f0c419429ef30723ceaf6b42f9b5a2aeb5d2e2d1
-refs/heads/beta: 14bc45477085222dcf2b87bef75ca3e7d0b5274a
+refs/heads/beta: 5f02de3c226bce60c58ce2bc436e69c55b90a616
 refs/tags/1.0.0-alpha: e42bd6d93a1d3433c486200587f8f9e12590a4d7
 refs/heads/tmp: 938f5d7af401e2d8238522fed4a612943b6e77fd
 refs/tags/1.0.0-alpha.2: 4c705f6bc559886632d3871b04f58aab093bfa2f

branches/beta/src/doc/tarpl/casts.md

@@ -9,7 +9,9 @@ using the `as` keyword: `expr as Type`.
 True casts generally revolve around raw pointers and the primitive numeric
 types. Even though they're dangerous, these casts are *infallible* at runtime.
 If a cast triggers some subtle corner case no indication will be given that
-this occurred. The cast will simply succeed.
+this occurred. The cast will simply succeed. That said, casts must be valid
+at the type level, or else they will be prevented statically. For instance,
+`7u8 as bool` will not compile.
 
 That said, casts aren't `unsafe` because they generally can't violate memory
 safety *on their own*. For instance, converting an integer to a raw pointer can

branches/beta/src/doc/tarpl/repr-rust.md

@@ -12,7 +12,11 @@ An enum is said to be *C-like* if none of its variants have associated data.
 For all these, individual fields are aligned to their preferred alignment. For
 primitives this is usually equal to their size. For instance, a u32 will be
 aligned to a multiple of 32 bits, and a u16 will be aligned to a multiple of 16
-bits. Composite structures will have a preferred alignment equal to the maximum
+bits. Note that some primitives may be emulated on different platforms, and as
+such may have strange alignment. For instance, a u64 on x86 may actually be
+emulated as a pair of u32s, and thus only have 32-bit alignment.
+
+Composite structures will have a preferred alignment equal to the maximum
 of their fields' preferred alignment, and a size equal to a multiple of their
 preferred alignment. This ensures that arrays of T can be correctly iterated
 by offsetting by their size. So for instance,