From f097f4309edac03f362bd9690560600b5e0d7d26 Mon Sep 17 00:00:00 2001
From: Sangeun Kim <sammy.kim@samsung.com>
Date: Thu, 16 May 2013 13:34:32 +0900
Subject: [PATCH] Change unsafe functions to safe functions

---
 src/libcore/vec.rs | 24 +++++++++++++++---------
 1 file changed, 15 insertions(+), 9 deletions(-)

diff --git a/src/libcore/vec.rs b/src/libcore/vec.rs
index 0fb697b686fb3..9db3585e03a5f 100644
--- a/src/libcore/vec.rs
+++ b/src/libcore/vec.rs
@@ -2546,23 +2546,29 @@ pub mod raw {
      * would also make any pointers to it invalid.
      */
     #[inline(always)]
-    pub unsafe fn to_ptr<T>(v: &[T]) -> *T {
-        let repr: **SliceRepr = transmute(&v);
-        transmute(&((**repr).data))
+    pub fn to_ptr<T>(v: &[T]) -> *T {
+        unsafe {
+            let repr: **SliceRepr = transmute(&v);
+            transmute(&((**repr).data))
+        }
     }
 
     /** see `to_ptr()` */
     #[inline(always)]
-    pub unsafe fn to_const_ptr<T>(v: &const [T]) -> *const T {
-        let repr: **SliceRepr = transmute(&v);
-        transmute(&((**repr).data))
+    pub fn to_const_ptr<T>(v: &const [T]) -> *const T {
+        unsafe {
+            let repr: **SliceRepr = transmute(&v);
+            transmute(&((**repr).data))
+        }
     }
 
     /** see `to_ptr()` */
     #[inline(always)]
-    pub unsafe fn to_mut_ptr<T>(v: &mut [T]) -> *mut T {
-        let repr: **SliceRepr = transmute(&v);
-        transmute(&((**repr).data))
+    pub fn to_mut_ptr<T>(v: &mut [T]) -> *mut T {
+        unsafe {
+            let repr: **SliceRepr = transmute(&v);
+            transmute(&((**repr).data))
+        }
     }
 
     /**