From 94c3975a9a4948a17cc63022e3ba5dbe87171a9d Mon Sep 17 00:00:00 2001
From: Erick Tryzelaar <erick.tryzelaar@gmail.com>
Date: Sun, 26 Aug 2012 09:16:36 -0700
Subject: [PATCH] libcore: str::push_char should use str::unsafe::set_len.

---
 src/libcore/str.rs | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/src/libcore/str.rs b/src/libcore/str.rs
index 7e13e75a93d..c7921ade27f 100644
--- a/src/libcore/str.rs
+++ b/src/libcore/str.rs
@@ -220,14 +220,9 @@ fn push_char(&s: ~str, ch: char) {
                 *ptr::mut_offset(buf, off + 5u) =
                     (code & 63u | tag_cont) as u8;
             }
-            *ptr::mut_offset(buf, off + nb) = 0u8;
         }
 
-        do as_bytes(s) |bytes| {
-            let mut mut_bytes: ~[u8] = ::unsafe::reinterpret_cast(bytes);
-            vec::unsafe::set_len(mut_bytes, new_len + 1u);
-            ::unsafe::forget(mut_bytes);
-        }
+        unsafe::set_len(s, new_len);
     }
 }