Simplify hashing example in traits post

aturon · aturon · commit 114acea8e460 · 2015-05-11T10:28:28.000-07:00
diff --git a/_posts/2015-05-11-traits.md b/_posts/2015-05-11-traits.md
@@ -312,12 +312,9 @@ wind up playing a few other important roles in Rust. Here's a taste:
 
   ```rust
   struct Pair<A, B> { first: A, second: B }
-
   impl<A: Hash, B: Hash> Hash for Pair<A, B> {
       fn hash(&self) -> u64 {
-          self.first.hash()
-              .xor(self.second.hash())
-              .wrapping_mul(0x100000001b3);
+          self.first.hash() ^ self.second.hash()
       }
   }
   ```

Original file line number	Diff line number	Diff line change
`@@ -312,12 +312,9 @@ wind up playing a few other important roles in Rust. Here's a taste:`
`312`	`312`
`313`	`313`	```rust
`314`	`314`	`struct Pair<A, B> { first: A, second: B }`
`315`		`-`
`316`	`315`	`impl<A: Hash, B: Hash> Hash for Pair<A, B> {`
`317`	`316`	`fn hash(&self) -> u64 {`
`318`		`- self.first.hash()`
`319`		`- .xor(self.second.hash())`
`320`		`- .wrapping_mul(0x100000001b3);`
	`317`	`+ self.first.hash() ^ self.second.hash()`
`321`	`318`	`}`
`322`	`319`	`}`
`323`	`320`	```