Replace full slice notation with index calls

1 files changed, 3 insertions, 3 deletions

diff --git a/src/libcore/fmt/mod.rs b/src/libcore/fmt/mod.rs
index 951f5c29f00..19c6b29417f 100644
--- a/src/libcore/fmt/mod.rs
+++ b/src/libcore/fmt/mod.rs
@@ -19,8 +19,8 @@ use kinds::{Copy, Sized};
 use mem;
 use option::Option;
 use option::Option::{Some, None};
-use ops::{Deref, FnOnce};
 use result::Result::Ok;
+use ops::{Deref, FnOnce, Index};
 use result;
 use slice::SliceExt;
 use slice;
@@ -413,7 +413,7 @@ impl<'a> Formatter<'a> {
             for c in sign.into_iter() {
                 let mut b = [0; 4];
                 let n = c.encode_utf8(&mut b).unwrap_or(0);
-                let b = unsafe { str::from_utf8_unchecked(b[0..n]) };
+                let b = unsafe { str::from_utf8_unchecked(b.index(&(0..n))) };
                 try!(f.buf.write_str(b));
             }
             if prefixed { f.buf.write_str(prefix) }
@@ -620,7 +620,7 @@ impl Show for char {
 
         let mut utf8 = [0u8; 4];
         let amt = self.encode_utf8(&mut utf8).unwrap_or(0);
-        let s: &str = unsafe { mem::transmute(utf8[..amt]) };
+        let s: &str = unsafe { mem::transmute(utf8.index(&(0..amt))) };
         Show::fmt(s, f)
     }
 }