Replace most invocations of fail keyword with die! macro

1 files changed, 2 insertions, 2 deletions

diff --git a/src/libstd/list.rs b/src/libstd/list.rs
index 68571382631..3016abee464 100644
--- a/src/libstd/list.rs
+++ b/src/libstd/list.rs
@@ -94,7 +94,7 @@ pub pure fn len<T>(ls: @List<T>) -> uint {
 pub pure fn tail<T: Copy>(ls: @List<T>) -> @List<T> {
     match *ls {
         Cons(_, tl) => return tl,
-        Nil => fail ~"list empty"
+        Nil => die!(~"list empty")
     }
 }
 
@@ -103,7 +103,7 @@ pub pure fn head<T: Copy>(ls: @List<T>) -> T {
     match *ls {
       Cons(copy hd, _) => hd,
       // makes me sad
-      _ => fail ~"head invoked on empty list"
+      _ => die!(~"head invoked on empty list")
     }
 }