---

brson · brson · commit 685bf3e2cdcf · 2012-12-20T17:01:38.000-08:00
yaml --- r: 35677 b: refs/heads/master c: 8b98e5a h: refs/heads/master i: 35675: 876d62a v: v3
diff --git a/[refs] b/[refs]
@@ -1,5 +1,5 @@
 ---
-refs/heads/master: 45e62d0a144f336e2ad849c1bb7767a12f312643
+refs/heads/master: 8b98e5a296d95c5e832db0756828e5bec31c6f50
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: eb8fd119c65c67f3b1b8268cc7341c22d39b7b61
 refs/heads/try: d324a424d8f84b1eb049b12cf34182bda91b0024
diff --git a/trunk/doc/rust.md b/trunk/doc/rust.md
@@ -876,6 +876,13 @@ fn add(x: int, y: int) -> int {
 }
 ~~~~
 
+As with `let` bindings, function arguments are irrefutable patterns,
+so any pattern that is valid in a let binding is also valid as an argument.
+
+~~~
+fn first((value, _): (int, int)) -> int { value }
+~~~
+
 
 #### Generic functions
 
