core: Fix an unsigned negation warning

alexcrichton · alexcrichton · commit 4a974413dcce · 2014-05-07T08:17:05.000-07:00
diff --git a/src/libcore/num/uint_macros.rs b/src/libcore/num/uint_macros.rs
@@ -89,7 +89,7 @@ impl Rem<$T,$T> for $T {
 #[cfg(not(test))]
 impl Neg<$T> for $T {
     #[inline]
-    fn neg(&self) -> $T { -*self }
+    fn neg(&self) -> $T { -(*self as $T_SIGNED) as $T }
 }
 
 impl Unsigned for $T {}

Original file line number	Diff line number	Diff line change
`@@ -89,7 +89,7 @@ impl Rem<$T,$T> for $T {`
`89`	`89`	`#[cfg(not(test))]`
`90`	`90`	`impl Neg<$T> for $T {`
`91`	`91`	`#[inline]`
`92`		`- fn neg(&self) -> $T { -*self }`
	`92`	`+ fn neg(&self) -> $T { -(*self as $T_SIGNED) as $T }`
`93`	`93`	`}`
`94`	`94`
`95`	`95`	`impl Unsigned for $T {}`