Add neg() to the num iface

1 files changed, 1 insertions, 0 deletions

diff --git a/src/libcore/uint-template.rs b/src/libcore/uint-template.rs
index 9d658605f5a..d1d238d298c 100644
--- a/src/libcore/uint-template.rs
+++ b/src/libcore/uint-template.rs
@@ -70,6 +70,7 @@ impl num of num for T {
     fn mul(&&other: T)    -> T { ret self * other; }
     fn div(&&other: T)    -> T { ret self / other; }
     fn modulo(&&other: T) -> T { ret self % other; }
+    fn neg()              -> T { ret -self;        }
 
     fn to_int()         -> int { ret self as int; }
     fn from_int(n: int) -> T   { ret n as T;      }