---

yaml
---
r: 82164
b: refs/heads/master
c: 41f9deb
h: refs/heads/master
v: v3

Author: erickt

[refs]

@@ -1,5 +1,5 @@
 ---
-refs/heads/master: 50fde8c024a30d01ed54a2d40eab7399bf1e7a3c
+refs/heads/master: 41f9deb2ee660cf45bc583171cc7c43a4b3ef4d5
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: 6c08cc2db4f98e9f07ae7d50338396c4123c2f0a
 refs/heads/try: 70152ff55722878cde684ee6462c14c65f2c4729

trunk/src/libstd/num/f32.rs

@@ -590,6 +590,9 @@ impl Primitive for f32 {
 
     #[inline]
     fn bytes(_: Option<f32>) -> uint { Primitive::bits(Some(0f32)) / 8 }
+
+    #[inline]
+    fn is_signed(_: Option<f32>) -> bool { true }
 }
 
 impl Float for f32 {

trunk/src/libstd/num/f64.rs

@@ -638,6 +638,9 @@ impl Primitive for f64 {
 
     #[inline]
     fn bytes(_: Option<f64>) -> uint { Primitive::bits(Some(0f64)) / 8 }
+
+    #[inline]
+    fn is_signed(_: Option<f64>) -> bool { true }
 }
 
 impl Float for f64 {

trunk/src/libstd/num/int_macros.rs

@@ -380,6 +380,9 @@ impl Primitive for $T {
 
     #[inline]
     fn bytes(_: Option<$T>) -> uint { bits / 8 }
+
+    #[inline]
+    fn is_signed(_: Option<$T>) -> bool { true }
 }
 
 // String conversion functions and impl str -> num

trunk/src/libstd/num/num.rs

@@ -286,6 +286,7 @@ pub trait Primitive: Clone
     // FIXME (#8888): Removing `unused_self` requires #8888 to be fixed.
     fn bits(unused_self: Option<Self>) -> uint;
     fn bytes(unused_self: Option<Self>) -> uint;
+    fn is_signed(unused_self: Option<Self>) -> bool;
 }
 
 /// A collection of traits relevant to primitive signed and unsigned integers

trunk/src/libstd/num/uint_macros.rs

@@ -306,6 +306,9 @@ impl Primitive for $T {
 
     #[inline]
     fn bytes(_: Option<$T>) -> uint { bits / 8 }
+
+    #[inline]
+    fn is_signed(_: Option<$T>) -> bool { false }
 }
 
 impl BitCount for $T {