---

yaml
---
r: 41903
b: refs/heads/master
c: c379d96
h: refs/heads/master
i:
  41901: 016afbf
  41899: 846e2e7
  41895: a299c26
  41887: 214eefd
v: v3

Author: sanxiyn

[refs]

@@ -1,5 +1,5 @@
 ---
-refs/heads/master: 54344c2468b95c4de5a297ddf4a5519792a34410
+refs/heads/master: c379d96c679fc7a60f3ba1bce1def53f5c64657e
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: 2f46b763da2c098913884f101b6d71d69af41b49
 refs/heads/try: 3d5418789064fdb463e872a4e651af1c628a3650

trunk/doc/rust.md

@@ -3018,6 +3018,11 @@ Local variables are immutable unless declared with `let mut`.  The
 declaration (so `let mut x, y` declares two mutable variables, `x` and
 `y`).
 
+Function parameters are immutable unless declared with `mut`. The
+`mut` keyword applies only to the following parameter (so `|mut x, y|`
+and `fn f(mut x: ~int, y: ~int)` declare one mutable variable `x` and
+one immutable variable `y`).
+
 Local variables are not initialized when allocated; the entire frame worth of
 local variables are allocated at once, on frame-entry, in an uninitialized
 state. Subsequent statements within a function may or may not initialize the