---

yaml
---
r: 80498
b: refs/heads/master
c: 8fce135
h: refs/heads/master
v: v3

Author: blake2-ppc

[refs]

@@ -1,5 +1,5 @@
 ---
-refs/heads/master: 8d488f38ed4fad414f9a693b6f4574dfa92b06fd
+refs/heads/master: 8fce135326707264d99102cdb514b00d6aa38081
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: cbd1eefbd350797b783df119fed7956d7e1c74ad
 refs/heads/try: 71bebebc37fbb229877da88dde13c2f35913bd77

trunk/src/libstd/vec.rs

@@ -2244,6 +2244,23 @@ pub mod bytes {
         // Bound checks are done at vec::raw::copy_memory.
         unsafe { vec::raw::copy_memory(dst, src, count) }
     }
+
+    /**
+     * Allocate space in `dst` and append the data in `src`.
+     */
+    #[inline]
+    pub fn push_bytes(dst: &mut ~[u8], src: &[u8]) {
+        let old_len = dst.len();
+        dst.reserve_additional(src.len());
+        unsafe {
+            do dst.as_mut_buf |p_dst, len_dst| {
+                do src.as_imm_buf |p_src, len_src| {
+                    ptr::copy_memory(p_dst.offset(len_dst as int), p_src, len_src)
+                }
+            }
+            vec::raw::set_len(dst, old_len + src.len());
+        }
+    }
 }
 
 impl<A: Clone> Clone for ~[A] {