correct the comment on the unsafe powers

[rust-101.git] / src / part07.rs

diff --git a/src/part07.rs b/src/part07.rs
index 618eb22ca8924167c2299d0f494c2f59c02b3944..4c143d5ae87dbe2ad169e97d8136d59ea72634b8 100644 (file)
--- a/src/part07.rs
+++ b/src/part07.rs
@@ -17,10 +17,10 @@ pub trait Minimum {
 pub fn vec_min<T: Minimum>(v: &Vec<T>) -> Option<&T> {
     let mut min: Option<&T> = None;
     for e in v {
 pub fn vec_min<T: Minimum>(v: &Vec<T>) -> Option<&T> {
     let mut min: Option<&T> = None;
     for e in v {

-        min = Some(match min {                                      /*@*/
-            None => e,                                              /*@*/
-            Some(n) => n.min(e)                                     /*@*/
-        });                                                         /*@*/
+        min = Some(match min {
+            None => e,
+            Some(n) => n.min(e)
+        });

     }
     min
 }
     }
     min
 }


@@ -35,7 +35,7 @@ pub fn vec_min<T: Minimum>(v: &Vec<T>) -> Option<&T> {
 
 // **Exercise 07.1**: For our `vec_min` to be usable with `BigInt`, you will have to provide an implementation of
 // `Minimum`. You should be able to pretty much copy the code you wrote for exercise 06.1. You should *not*
 
 // **Exercise 07.1**: For our `vec_min` to be usable with `BigInt`, you will have to provide an implementation of
 // `Minimum`. You should be able to pretty much copy the code you wrote for exercise 06.1. You should *not*

-// make any copies!
+// make any copies of `BigInt`!

 impl Minimum for BigInt {
     fn min<'a>(&'a self, other: &'a Self) -> &'a Self {
         unimplemented!()
 impl Minimum for BigInt {
     fn min<'a>(&'a self, other: &'a Self) -> &'a Self {
         unimplemented!()